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Atractylodis Rhizoma comes from the dry rhizome of Atractylis lancea or Atractylodes chinensis in the Compositae family, and it is suitable for preventing and treating diseases such as cold, edema, night blindness and rheumatic arthralgia. Atractylodin is the main active component extracted and isolated from Atractylodis Rhizoma. A large number of studies have found that atractylodin has excellent drug activity in improving gastrointestinal emptying, anti-inflammation, inhibiting malignant tumor and reducing blood lipid. In this paper, the purification process and pharmacological activity of Atractylodin were summarized to provide a theoretical basis for basic research, clinical application and further development and utilization of atractylodin. [ABSTRACT FROM AUTHOR]

Microplastics are plastic particles or fibers with a diameter of less than 5 mm, and they widely exist in the environment and pose potential risks to the ecosystem and human health. Microplastics detection can provide basic data for formulating effective environmental protection strategies. In this paper, the physical, chemical and biological detection methods of microplastics are reviewed, and the advantages and disadvantages of different methods are analyzed. The problems and challenges encountered in microplastics detection are analyzed, and the future research is discussed. [ABSTRACT FROM AUTHOR]

Based on output-oriented education, the OBE (Outcome-Based Education) concept integrates local red culture into the ideological and political course of environmental disciplines, and is an important part of training applied talents of environmental disciplines in the new era. This educational model makes an innovation on the traditional educational and teaching concepts and centers on students. This paper analyzes the value of integrating local red culture into the ideological and political course under the OBE concept, and puts forward an effective implementation path. [ABSTRACT FROM AUTHOR]

China attaches great importance to food security. With the strong promotion of the government, China's grain output has achieved a great feat from "shortage" to "surplus in bumper years" and then to "rising steadily", achieving a record "increase for the tenth consecutive year". From the current balance of food supply and demand in China, the food security situation can be guaranteed on the whole. However, if we analyze the food security in China from the perspective of agricultural sustainable development strategy, there are some difficulties, such as the reduction of cultivated land area, the decline of cultivated land quality, the fragility of agricultural ecological environment, and the transformation of residents' consumption structure. This paper analyzes the difficulties faced by the development of food security in China under the strategy of sustainable agricultural development, and puts forward that to implement the strategy of sustainable agricultural development, it is necessary to realize the coordinated development of food security, science and technology, ecological environment, resources and society. [ABSTRACT FROM AUTHOR]

Provincial agricultural research institutes are local agricultural research institutions. They are familiar with local agricultural and rural conditions, and have advantages in scientific and technological achievements, technical reserves and the construction of scientific and technological talent support systems. In the process of promoting the implementation of the rural revitalization strategy, all the responsibilities and obligations of the agricultural research institute are to identify the focus of scientific and technologic! support and talent support in rural revitalization, and break the botdeneck and constraints of rural revitalization. By sorting out the current situation of agricultural science and technology experts serving the grassroots in the problem of talent support for rural revitalization, this paper analyzed the existing problems and put forward countermeasures and recommendations. [ABSTRACT FROM AUTHOR]

True, objective and impartial course and achievement evaluation is the requirement of modern higher vocational education, and can avoid "high scores and low abilities" of students to the maximum. This article focuses on expounding the "two connections ad five combinations" dual evaluation modes of higher vocational gardening technology major students' achievement on practical courses, namely connection between major ad industry; connection between achievement ad occupation; combination of on-campus and off-campus teachers' evaluation; combination of process and results evaluation; combination of course evaluation and professional skill appraisal; combination of students' self-evaluation and teachers' evaluation; combination of examination paper ad non-examination paper evaluation; combination of group and individual evaluation. [ABSTRACT FROM AUTHOR]

This paper studies the operation mechanism of crowdfunding for rural tourism from three aspects: the main body of crowdfunding for rural tourism, driving factors and operating stage. At the same time, this paper analyzes the operation risk of crowdfunding for rural tourism from five aspects: legal risk, information asymmetry risk, capital security risk, interest subject conflict risk and industry development risk. It also puts forward measures and suggestions on the promotion of crowdfunding for rural tourism from four aspects: improving market awareness, providing professional services, issuing relevant laws and regulations and regulating the development of the industry. [ABSTRACT FROM AUTHOR]

Pig industry is the basic industry of China' national economy. In order to maintain the healthy and stable development of China's pig breeding industry, through in-depth investigation, observation and analysis, this paper points out that there are problems of insufficient and unbalanced development in the current development of China's pig industry'. In accordance with the reality of our country, this paper puts forward the remedial methods and measures to maintain the sustained, healthy and stable development of pig breeding. The first is to lay a solid foundation for the nodes of the industrial chain and coordinate the development of production, supply and marketing. The second is to improve the epidemic prevention network of live pigs to ensure the healthy development of the pig industry. The third is to draw' a red line of environmental protection and adhere to the green development of the pig industry. The fourth is to improve the social service organization and promote the new development of the pig industry. These methods provide useful thinking for the further development of pig industry. [ABSTRACT FROM AUTHOR]

The application of new media technology in rural areas of China provides more convenient conditions for agricultural products publicity, transaction information dissemination and user feedback. In particular, e-commerce platform based on Internet technology provides more convenient sales channels for characteristic agricultural products. Through the research on the application of new media technology in rural areas of Anhui Province, this paper explores the actual effect of new media technology on the development of rural e-commerce. The questionnaire survey is used to understand the development status of new media in rural areas of China. They are; the development of "Internet government affairs" has begun to take shape; the official account of WeChat has shortened the time and space between the production and consumption of agricultural products. Live interaction gives full play to the powerful role of fan economy; digital media has not been widely used. Through the form of on-the-spot visits, this paper expounds the application effect of new media in the agricultural field of Anhui Province from three perspectives of the government, agricultural enterprises and farmers. It analyzes the problems existing in the application of new media in rural e-commerce in Anhui Province. They are; the new media market is still full of problems; The infrastructure construction of rural e-commerce is relatively poor; Farmers lack the guidance of professional talents; farmers' acceptance and learning ability is poor. The paper puts forward suggestions for the development status and problems of new media in rural areas of Anhui Province. They are; the provincial government should continue to promote the new media market order; all e-commerce enterprises should actively undertake social responsibility; rural e-commerce entrepreneurs should actively promote professional operation; farmers should actively change their views on new media. [ABSTRACT FROM AUTHOR]

Through the method of literature analysis, this paper analyzes the present situation of the "non-grain conversion" of cultivated land in the transfer of agricultural land in China, summarizes the influencing factors and consequences of the phenomenon of "non-grain conversion" of cultivated land in the transfer of agricultural land, and finally puts forward some measures. The study found that costs and benefits are the fundamental factors affecting the "non-grain conversion" of cultivated land in agricultural land transfer, and other main factors include government and policy guidance, industrial and commercial capital to the countryside, labor transfer and so on. The "non-grain conversion" of cultivated land in the transfer of agricultural land is a serious threat to China's food security, leading to the decline of the quality of agricultural land and the destruction of the ecological environment, as well as the risk of breach of contract in "industrial and commercial capital to the countryside". Based on the understanding of the influencing factors of non-grain conversion, this paper puts forward the following measures: strengthening the control of the use of cultivated land in agricultural land transfer; implementing accurate subsidies for grain cultivation and ensuring the benefit of grain growers; adopting grain planting incentive mechanism to increase grain enthusiasm; strengthening media publicity and education to enhance food security awareness. The improvement of the current situation of the "non-grain conversion" of cultivated land in the transfer of agricultural land will be of great significance to the protection of agricultural land and food security in China. [ABSTRACT FROM AUTHOR]

This paper selects Qingdao Textile Valley as the research object, establishes the evaluation system of industrial heritage tourism resources, and analyzes the evaluation factors of industrial heritage tourism resources, such as resource element value, market location value, and environmental factors. Then this paper puts forward some effective suggestions to promote the development of industrial heritage tourism in Textile Valley. The results show that the measures put forward, such as fully tapping the value of resource elements, improving the surrounding traffic environment, perfecting tourism signs, perfecting local traffic routes, improving the complementarity of tourism resources, and expanding the tourist market, can scientifically and effectively protect urban industrial heritage, improve the development level of urban tourism, and speed up the transformation of new and old energy in Qingdao. [ABSTRACT FROM AUTHOR]

As a traditional advantageous industry in Guizhou and an important export product, tea plays an important role in the rural revitalization strategy. This paper first introduces the current situation of tea industry and export in Guizhou, then analyzes the problems that arise in the export process, and finally comes up with corresponding countermeasures and recommendations for the export development of tea, hoping to provide certain guidance and reference to the development of tea industry in Guizhou Province. [ABSTRACT FROM AUTHOR]

In the context of the digital economy, agricultural product marketing has also undergone new development, and the models of agricultural product marketing are constantly innovating. Based on the current sales situation of Tashan Pomegranate, this paper analyzed the existing sales channels of Tashan Pomegranate. It found that Tashan Pomegranate currently has insufficient online marketing channels, incomplete logistics system, and a lack of comprehensive talents in online marketing. In response to the existing problems, constructive recommendations are proposed for the online marketing channels of agricultural products in Lieshan District, and a network marketing path suitable for Tashan Pomegranate in Lieshan District was explored. [ABSTRACT FROM AUTHOR]

At present, there are still some problems, such as insufficient integration between universities and local industry and education, urgent need to optimize the collaborative education system, limited quality of "mass enterpreneurship and innovation" education subjects, insufficient joint efforts of relevant policies, lack of rural revitalization subjects, and imperfect rural infrastructure and public service system. In view of the above difficulties and the practical efficiency analysis of "mass enterpreneurship and innovation" education in Hubei University of Science and Technology', this paper puts forward the strategies for "mass enterpreneurship and innovation" education in local universities to promote rural revitalization from the perspective of integration between industry and education; colleges and universities should deepen the reform of the education system of integration between industry' and education, and cultivate "mass enterpreneurship and innovation" talents for rural revitalization; the government and society should strengthen the construction of rural service support system and optimize the "mass enterpreneurship and innovation" environment for rural revitalization. [ABSTRACT FROM AUTHOR]

Flowering is a prerequisite for apple fruiting, and apple flower buds are mixed buds, that is, the vegetative organs and flower structure exist in the same terminal bud simultaneously, which are formed in the year before flowering and fruiting, mainly including spur terminal buds and axillary buds. The infrequent formation of flower buds during its growth and biennial bearing are closely related to flower bud differentiation. Therefore, this paper reviews the research progress of flower bud differentiation of apple from the morphological differentiation, plant hormones and flowering-related genes, in order to provide a theoretical reference for efficient cultivation and stable yield of apple. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to clone and analyze bioinformatics of ndk gene from Vibrio alginolyticus. [Methods] A pair of specific primers was designed based on the ndk gene sequence of V. alginolyticus HY9901. The full length of ndk gene was amplified by PCR and bio informatics analysis was performed. MEGA 5.0 software was used to construct NDK phylogenetic tree by neighbor-joining method. SWISS-MODEL program was used to obtain the three-dimensional structural model of single subunit from NDK protein. [Results] The ndk gene, molecular structural formula C7CB Hlow N]92 02J4 S7, was 426 bp in total, encoding 141 amino acids, with the theoretical molecular weight of 15.871 99 kD and the theoretical pl value of 5.13. The prediction results of protein subcellular localization, Signal? 5. 0, TMHMM Server 2.0 and SoftBerry-Psite showed that NDK mainly existed in the cytoplasm, and the protein was unstable and hydrophobic. There was neither signal peptide cleavage site, nor transmembrane region and KEGG metabolic pathway. The amino acid sequence had two protein kinase C phosphorylation sites, a casein kinase II phosphorylation site, a N-myristoylation site, three microbody C-terminal target signal sites, and a nucleoside diphosphate kinase active site. Homology analysis showed that the NDK of V. alginolyticus had high homology with that of V. diabolicus, with a similarity of 98.58%. Analysis of the structural functional domain revealed that the protein had one NDK structural functional domain. The prediction results of secondary structure showed that the a-helix, random coil, [3-sheet and extended strand accounted for 53.19%, 28.37%, 7.09% and 11.35%, respectively. Analysis of NDK protein via STRING database demonstrated that the proteins interacting with NDK protein were NrdA, NrdB, GmK, CmK, TmK, PyrG, PyrH, RelA, FolE and SpoT. [Conclusions] The study plays a positive role in the prevention and control of vibriosis and the improvement of the current aquaculture environment. [ABSTRACT FROM AUTHOR]

"Three new developments" is the guiding ideology of Chinese-style high-quality development in the new era. Jujube (Zizyphus jujube Mill.) is a plant of Zizyphus of Rhamnaceae, which originated in China and has been listed as one of the "five fruits" since ancient times. Xinjiang is the most important jujube producing area in China, and its yield has accounted for 50% of the national jujube yield. In the five prefectures and cities of southern Xinjiang, as well as the regimental farms of southern and eastern Xinjiang of Xinjiang Production and Construction Corps, the jujube industry is an advantageous characteristic industry in agriculture. This paper studied Xinjiang jujube industry and its agricultural intellectual property resources, analyzed six major issues to be further implemented, such as the "three new developments" thinking and the strategy of building an intellectual property power, and puts forward eight strategies such as coordinating the two markets and two resources to accelerate the construction of a new development pattern and dual circulation of jujube. [ABSTRACT FROM AUTHOR]

In this paper, by combining sampling methods for food statistics with years of sample sampling experience, various sampling points and corresponding sampling methods are summarized. It hopes to discover food safety risks and improve the level of food safety. [ABSTRACT FROM AUTHOR]

The formulation of agricultural extension policy and the development of rural regional economy present the relationship of mutual existence, mutual influence and mutual promotion. Therefore, it is necessary to study the agricultural extension policy according to the current situation of rural regional development. Agricultural technology extension system is an organization set up at county and township levels to provide farmers with scientific research achievements and practical technical services on planting, animal husbandry, fishery, forestry, agricultural machinery and water conservancy, and it is an important carrier for implementing the strategy of developing agriculture through science and technology. On the basis of expounding the value and significance of rural regional economic development, this paper analyzes the problems existing in China's rural regional development from the aspects of rural infrastructure and public services, rural labor force's cultural and scientific level, rural grass-roots extension system, etc., and puts forward corresponding measures against the problems. This study has certain theoretical reference value for promoting the all-round development of China's rural economy and realizing the great strategy of rural revitalization in China. [ABSTRACT FROM AUTHOR]

The development of diversified foods such as melons under the big food concept can reduce the pressure on staple food grain. Xinjiang has the advantages of building a new development pattern of dual circulation of diversified food industry and establishing a national diversified food safety and high-quality assurance center. The construction of an agricultural power needs the strategic support of an intellectual property power. This paper introduced and studied Xinjiang's melon industry and its agricultural intellectual property resources, analyzed the six main problems, including many idle land resources have not been developed into melon fields and the role of melons in diversified food supply systems not well played. Finally, it proposed to vigorously develop diversified food industries such as melons in Xinjiang and establish an eight-point strategy such as national diversified food safety and high-quality assurance center. [ABSTRACT FROM AUTHOR]

The development prospect of Pennisetum Sinese Roxb. is receiving much concern of domestic researchers. In this paper, literature of Pennisetum Sinese Roxb. was taken as basis, and bibliometric analysis method was used to make statistics of distribution of years, research institutions, authors, and research fields. The results showed that research fields of Pennisetum Sinese Roxb. in China were mainly ecological restoration, accounting for 13.27% of the total literature; the research took on dynamic and diversified cooperation trend. In recent 5 years, the number of papers significantly increased, accounting for 93. 04% of the total literature. The distribution of authors and regions were relatively concentrated, but the overall level of research is low. [ABSTRACT FROM AUTHOR]

In northern China's agro-pastoral ecotone, there are conflicts between agricultural industry and ecological construction resource competition, and also problems urgently to be solved for economic growth and sustainable ecological improvement. Taking the development concept of "lucid waters and lush mountains being mountains of gold and silver" as the guiding principle of prioritizing ecological and green development, this paper studied the strategies for prioritizing ecological construction with consideration of economic development of agricultural industry from the perspective of opportunity cost. Through the analysis of opportunity cost, externality, and Pareto optimal theory, and using the calculation method of the unit equivalent factor value of terrestrial ecological service function, this paper calculated the ecological service value of forest, grassland, and farmland. It found that the ecological value of forest and grassland per unit area was greater than the ecological value of agricultural industry. This indicates that the opportunity cost of farmland for ecological construction was less than that of agricultural industry. Based on the theoretical and quantitative analysis, it came up with recommendations for establishing a comprehensive system for prioritizing ecological construction with consideration of agricultural industry development and establishing and improving the incentive mechanism of ecological construction. [ABSTRACT FROM AUTHOR]

Due to the differences in regional resources level, economic development level and government support strength, there are clear regional differences in the development of China's agricultural producer service industry. Based on the data of agricultural producer services from 31 provinces in China from 2003 to 2016, the spatial differences in the development level of China's agricultural producer services were measured in this paper using the Theil index. The results showed that there are significant spatial differences in China's agricultural producer services, and regional differences are the main reason for the overall differences. To reveal the influencing factors of the spatial differences in the level of development of China's agricultural producer services, theoretical analysis was conducted in this paper from four aspects: location factors, economic factor, policy factor and technical factors. Using the panel data from 2003 to 2016, empirical research was carried out. It was found that regional economic development level and government support strength are the main factors affecting the differences in the development level of agricultural producer services in China. [ABSTRACT FROM AUTHOR]

In the context of the Belt and Road Initiative,it is of great significance to study the trade ties between China and Southeast Asia with cocoon silk as a link. Trend analysis,trade competitiveness index and trade complementarity index were comprehensively used in this paper to study the competitiveness and complementarity of the cocoon silk trade between China and Southeast Asia. The results show that the export trade volume of cocoon silk of China and Southeast Asia is decreasing while fluctuating,but it is difficult for other regions to replace their export trade status in the world market. The development trend of the replacement of the silkworm cocoon trade by the raw silk trade is presented. The cocoon silk trade of China and Southeast Asia is characterized by dislocation competition. China’s raw silk export trade is competitive and has become the leader of the raw silk export camp. This paper further analyzes the changes and complementarities of the cocoon silk trade competitiveness between China and Southeast Asia. [ABSTRACT FROM AUTHOR]

In order to promote the economic and financial development of Henan Province,this paper constructs the financial ecological system of Henan Province,evaluates the " quantity" of Henan financial ecology by entropy method-TOPSIS method,and evaluates the " quality" of Henan financial ecology by DEA-Malmquist method. It is found that the " quantity" of financial ecology in Henan Province shows the early advantage,but the power of late advantage is insufficient,and the " quality" of financial ecology in Henan Province is improved obviously,but it only depends on the technological progress,showing a lack of sustained momentum. Based on this,this paper puts forward some suggestions on promoting the development of digital finance,creating a good credit environment and actively preparing for the establishment of a diversified financial system,so as to improve the quality of financial ecology in Henan Province. [ABSTRACT FROM AUTHOR]

In order to explore researches about the chromosome karyotype analysis and fluorescence in situ hybridization (FISH) technology in China, using the bibliometric method, taking "fluorescence in situ hybridization (FISH) " and "chromosome" as Key words:, this paper made a statistical analysis on the literature published in China National Knowledge Infrastructure (CNKI) during 2002 -2016. The results indicated that the number of papers published in 2002 was the smallest (37), while the number of papers published in 2012 was the largest (125). In terms of the distribution of organizations of authors, in 1201 papers, 11 organizations published papers ≥15, accounting for 21.65%. In terms of distribution of papers published by different periodicals, 11 periodicals published papers ^10, accounting for 17. 65%. In terms of the papers supported by foundation projects, in all papers searched, 377 papers were supported by foundation projects, accounting for 31.39%. In terms of the distribution of doctoral and master's dissertations, 259 papers were master's dissertations, accounting for 21.57% ; 92 papers were doctoral dissertations, accounting for 7. 66%. [ABSTRACT FROM AUTHOR]

[Objectives] To isolate and identify characteristics of the cellulose-degrading bacteria. [Methods] In view of the poor effect of crop straw composting, the strains which can degrade cellulose were isolated and purified from the soil piled with rice straw, and the strains A2 and A5 with high efficiency of cellulose degradation were finally screened through the transparent circle, cellulase activity and filter paper disintegration experiments. [Results] It was confirmed that the strains A2 and A5 could degrade cellulose well. The results of 16s rDNA showed that A2 was Pseudoxanthomonas mexicana and A5 was Bacillus cibi. [ Conclusions] The results of this study are expected to provide high-quality strain resources for the degradation of cellulose in straw, and have important application value for improving the efficiency of straw composting. [ABSTRACT FROM AUTHOR]

This investigation report got a clear picture of the general situation of the development of greenhouse vegetable industry in Zibo, and found out the existing problems such as frequent harmful weather, few special varieties and high-grade varieties of greenhouse vegetables, fragmentation of new technology promotion of greenhouse vegetables, low level of intensive seedling raising of vegetables, backward level of facility planting structure and equipment, etc. This paper puts forward the strategies for the future high-quality development of vegetables: promoting the adjustment of vegetable planting structure, rationally arranging vegetables for rotation, strengthening vegetable technical guidance, and innovating vegetable consumption patterns. [ABSTRACT FROM AUTHOR]

Based on the panel data of 41 cities in the Yangtze River Delta from 2007 to 2018, this paper empirically tests the impact of digital economy development on urban ecological efficiency in the Yangtze River Delta. The results show that the development level of digital economy in Yangtze River Delta urban agglomeration is fluctuating and rising; the development of digital economy has a significant positive role in promoting the improvement of urban ecological efficiency; there is significant regional heterogeneity in the promotion of ecological efficiency by digital economy, especially in central cities. [ABSTRACT FROM AUTHOR]

[Objectives] To accelerate the improvement of walnut varieties and change the cultivation status cf low yield and poor quality. [Methods] Through experimenting on the optimization technology of walnut trees, this paper studied the suitable top grafting period and scientific top grafting protection measures of walnut trees in Eastern Hebei, and established the top grafting technology system of walnut. Moreover, this paper explored the impact of different time and scientific management and protection measures on the survival rate and growth of bare scion top grafting cf walnut trees. [Results] The grafting time had a great impact on the growth of new shoots, and there were significant differences in the survival rate among different grafting periods. The highest grafting survival rate was 96.97% on April 27 and the lowest grafting survival rate was 66.67% on May 4; the average survival rate was 78.10%. Among them, the survival rate of top grafting was the highest on April 20 and April 27. The growth of new shoots grafted in the early stage was greater than that in the late stage. The growth of new shoots and branches on April 8 and April 20 were the largest, with lengths of 160.3 and 143.7 cm; the thickness was 1.72 and 1.43 cm; the branch lengths were 79.8 and 63.4 cm; the branch thickness was 0.98 and 0.82 cm; the growth index was also the highest on April 8 and April 20 at 10, 20, 30 d after grafting, which was significantly different from other time periods. [Conclusions] Walnut trees with early grafting in Eastern Hebei can quickly restore their crow growth and had higher yield, thus this technology can be widely applied in Eastern Hebei or Yanshan area. [ABSTRACT FROM AUTHOR]

With the acceleration of globalization and urbanization, rural areas in China, particularly traditional villages have been faced with various problems and the development bottleneck. On the contrary, rural areas in the UK are well-known for picturesque scenery and outstanding characteristics, and able to maintain the sustainable vitality and charm in economy and culture, rural areas in the UK make successful examples for the global rural construction and development. This paper took Cotswolds in the UK for example, analyzed the maintenance and continuation of traditional rural landscapes in the UK from the perspectives of natural scenery, overall layout, folk dwellings, yard plants and so on. On the other hand, the paper explored the all-around sustainable development of rural landscapes in the UK from the perspectives of internal drives such as intangible cultural confidence, production mode, economic foundation and environmental protection. The study tried to provide references for the sustainable development of rural landscapes in China. [ABSTRACT FROM AUTHOR]

Data services, knowledge services, and information services are the core sendee elements of university libraries in the context of the Double First-Class Initiative. Combined with the current situation of insufficient overall service capacity of libraries, this paper proposed strategies and implementation paths for optimizing the service system from three aspects: the construction of the professional qualification system for librarians, the establishment of post institutions, and the construction of library culture. Long-term path; putting library human resource management into the legal track, taking the lead in local legislation, and promoting the construction of library' legislation and professional qualification certification system; optimizing the personnel system, implementing hierarchical management and classified assessment for professional librarians and auxiliary librarians. Short-term path; intensive post allocation, namely, assigning the core strength in the core post, and tackling the temporary' major work combining multiple forces in the form of a "working group"; building an open knowledge service ecosystem, accelerate the cross-border integration of libraries and other organizations, and striving to build the core competitiveness of libraries. [ABSTRACT FROM AUTHOR]

As the global economy enters a new stage, Chinese dairy enterprises are gradually moving towards the road of internationalization. In this paper, the internationally common quality management system, food safety system and quality traceability system were analyzed and studied to promote the comprehensive transformation and upgrading of dairy industry and broaden the development road with the help of systematic construction. [ABSTRACT FROM AUTHOR]

Based on the analysis of rice planting and export development in Heilongjiang Province in 2013 - 2021, this paper comprehensively used three export competitiveness analysis methods, namely, trade competitiveness index, revealed comparative advantage (RCA) analysis and international market share analysis, to compare the four major rice exporters in the world and the three major rice export provinces and cities in China. Besides, it evaluated the rice export competitiveness of Heilongjiang Province from multiple perspectives. It analyzed the reasons for low competitiveness in terms of export product structure, export market structure, production and processing technology, and brand building. Finally, it is recommended to clarify the positioning of rice export quality and take more measures to ensure product quality; improve the level of industrialization of rice production and processing, and extend the rice industry chain; develop diversified rice export markets and improve export flexibility; adhere to the principle of "opening the door and going out", expand the international popularity of high-quality brands, so as to enhance the rice export competitiveness of Heilongjiang Province. [ABSTRACT FROM AUTHOR]

Vocational colleges attach great importance to labor education. Specialized courses are an effective way to cultivate students' labor quality, and the integration of labor education in specialized courses plays an important role in the overall cultivation of students' moral quality and practical ability. Combined with the teaching practice of landscape technology specialty, labor education is integrated into the teaching of Plant Cultivation and Maintenance, and certain results have been achieved. In this paper, the course content "grafting propagation" was analyzed from the aspects of overall teaching design, teaching implementation process, teaching effect and reflection improvement, so as to provide reference for other contents of this major or other majors to carry out integrated teaching. [ABSTRACT FROM AUTHOR]

Madecassoside is a natural active component extracted from CenteUa asiatica. In recent years, a large number of studies have reported that madecassoside has a variety of biological activities, such as anticancer, anti-inflammatory and antibacterial effects, prevention and treatment of cardiovascular diseases, nerve damage, visceral damage and arthritis, and other pharmacological effects. In this paper, the pharmacological action and mechanism of madecassoside were reviewed to provide a theoretical basis for further research of madecassoside and drug development. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to establish a molecular biological method for identification of bacterial strains. [Methods] The thalli of standard bacterial strains existing in the laboratory were collected and genomic DNA was extracted for amplification of 16S rDNA and gyrB gene. The 16S rDNA and gyrB gene sequences were obtained after sequencing. Sequences were aligned and analyzed via EzBioCloud and NCBI database, and phylogenetic trees were constructed to determine the species relationship of strains. Meantime, they were compared with known strains. [Results] This method could identify 5 standard strains accurately to the species level. The 16S rDNA and gyrB gene sequences were aligned and analyzed in EzBioCloud database and NCBI database. The strain with the max score was consistent with the known strain. And the query cover and ident were both above 99%. [Conclusions] The established molecular biological method for identification of bacterial strains by 16S rDNA and gyrB gene has good accuracy, which effectively solves the problem that the laboratory identification of bacteria relies on traditional methods and the accuracy can not be guaranteed, and further improves the identification ability of laborator)' bacterial strains. [ABSTRACT FROM AUTHOR]

Taking Yunnan Province as an example, this paper calculated the real integrated land productivity (RILP) of 16 prefectures (cities) in Yunnan Province for the past 11 years (2009-2019), and analyzed its spatial distribution pattern. The research results show that the RILP of the whole Yunnan Province and all prefectures (cities) showed a slow upward trend. Among them, the province's RILP showed the highest increase in 2019 compared with the previous year; the RILP of all prefectures (cities) in Yunnan Province has significant spatial autocorrelation, showing obvious positive spatial agglomeration characteristics. Based on this, this paper proposes to improve the overall RILP in various regions according to local conditions and formulate countermeasures for coordinated development of various prefectures (cities). [ABSTRACT FROM AUTHOR]

This paper takes ecological agriculture as the starting point. On the basis of field investigation and research on the basic situation of the development of ecological agriculture in Xiantao City, this paper focuses on the development models of ecological agriculture in some typical regions such as Xianfeng Village, Zhanggou Town, Chenchang Town and Shazui Street Office in Xiantao City. This paper analyzes many problems that affect and restrict the development of ecological agriculture in Xiantao City, and puts forward some measures and suggestions to promote the development of ecological agriculture in Xiantao City. [ABSTRACT FROM AUTHOR]

[Objectives] This study was conducted to gain an in-depth understanding of the research status of fields related to soil aggregates. [ Methods] The academic papers published from 2001 to 2020 in the field of soil aggregates were searched in the CNKI database serving as the statistical source using the subject terms "soil" and "aggregate" under advanced search, and visually analyzed by bibliometric statistical methods, from the perspectives of the annual number of published papers, the number of papers published by authors, and highly cited papers. [ Results] The trend of the number of published papers in the past 20 years was mainly divided into three stages; 2001 -2007, 2008 - 2016, and 2017 -2020. There were 192 first authors in the literature related to soil aggregates. The authors with the top 3 published papers were Wang Erli, 2hang 2hengxiong, Li Yangbing, and Yang Yonghui (tied for third). Three highly cited papers were published in journals related to "ecology", and the top 10 most cited papers focused on the "formation and stability" of soil aggregates and the relationship between aggregates and soil organic matter and biochar. [ Conclusions] This study can provide reference for further research on soil aggregates. [ABSTRACT FROM AUTHOR]

Teaching evaluation is an indispensable part of the teaching system of junior high school. In order to inherit the excellent traditional Chinese culture and arts, traditional Chinese painting has been paid more and more attention to in the fine arts curriculum of rural junior high school. This paper takes the classroom teaching evaluation of traditional Chinese painting a a form of fine arts in rural junior high school as the research object, and analyzes the problems existing in the claasroom teaching evaluation of traditional Chinese painting in rural junior high school. This paper puts forward the corresponding improvement measures from the aspects of comprehensive evaluation object, concrete evaluation content, flexible evaluation language and diversified evaluation subjects, in order to improve the evaluation level of fine arts teachers' claasroom teaching, improve students' aesthetic cognition and learning interest in traditional Chinese painting, and cultivate students' innovative thinking and spirit. [ABSTRACT FROM AUTHOR]

With the popularization of quality education, the teaching evaluation of fine arts class in rural primary schools has become an important part of the new curriculum reform, which tests whether the teaching goals are effectively achieved. This paper takes the formative evaluation system of fine arts classroom teaching in rural primary schools as the research object, analyzes the research status of the formative evaluation system in rural primary schools, and expounds the theoretical basis and construction principles of the formative evaluation system. This paper constructs a formative evaluation system of fine arts classroom teaching in rural primary schools from the aspects of teachers and students inside and outside the classroom, teaching proceed S and teaching effect, in order to effectively stimulate students' interest in learning and improve their aesthetic literacy. [ABSTRACT FROM AUTHOR]

The education for the elderly is the last link of life-long education and an important part of spiritually providing for the aged. In the context of rural revitalization, this paper chooses the elderly in the suburbs of Hangzhou, an eastern developed city, as the survey object. Through the methods of questionnaire survey and quantitative statistics, this paper analyzes and introduces the basic situation of rural education for the elderly, the demand for participating in education for the elderly, the learning evaluation of education for the elderly and the problems existing in the education for the elderly in rural areas. On this basis, some brief conclusions and discussions are put forward. [ABSTRACT FROM AUTHOR]

In the reform process of the rural land property rights system, the incentive mechanism of the rural land property rights system has a crucial impact on the production activities of rural economic entities. Due to the different rights structures of the property rights system in different social and economic development stages, the land rights and interests enjoyed by rural economic subjects are different, and the degree of incentives for farmers is also different. This difference in incentives affects farmers' investment in agricultural production factors, which in turn affects agricultural performance. This paper analyzes the incentive impacts of the structure of rural land property rights on the changes of farmers' land rights and agricultural performance since the founding of the People's Republic of China, in order to further deepen the reform of the land system, protect the rights and interests of farmers, promote the modernization of agriculture and rural areas, and explore the realization form and operation mechanism of the rural collective land system in the new era. [ABSTRACT FROM AUTHOR]

At present, the lack of Chinese culture in higher vocational English teaching in southern Xinjiang is serious. The existing English curriculum system is not enough to support the goal of cultivating ethnic minority college students' cultural confidence, and its curriculum ideological and political construction is still in the initial stage of exploration. The combination of the Chinese national culture and the ethnic culture of Xinjiang and the ideological and political elements organically integrated into cultural confidence have endowed the vocational English education in Xinjiang with the characteristics of the times. In this paper, from the perspective of China's "cultural confidence", ideological and political elements were explored, and the background of ideological and political construction in higher vocational English teaching course in southern Xinjiang was analyzed; it is expounded that the ideological and political construction is an inevitable requirement for the high-quality development of vocational English education in southern Xinjiang, and the content design and implementation path of higher vocational English course was explored to provide new ideas and new ways for the curriculum ideological and political construction of higher vocational English teaching in southern Xinjiang. [ABSTRACT FROM AUTHOR]

Local red culture is an important educational resource. Integrating it into the course of agronomy majors is an important part of cultivating applied talents who grasp and love agriculture in the new era. This paper analyzes the necessity of integrating local red culture into courses of agronomy majors, discusses the current challenges, and puts forward specific recommendations. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to study the effect of magnetic field technology on physicochemical properties of fresh-cut apple during storage. [Methods] Using fresh-cut apples as materials, magnetic field assisted refrigeration and conventional refrigeration control groups were set up, and the preservation effects of magnetic field assisted refrigeration on fresh-cut apples were tested by measuring the changes of microorganisms and physicochemical indicators. In this experiment, the conditions of magnetic field assisted refrigeration group was set as follows: temperature 4 °C, magnetic field intensity 5 mT, static magnetic field, and storage for 6 d. [Results] At 6 d post storage, the weight loss rate, total number of colonies and total number of fungi of fresh-cut apples increased; the i" value and hardness showed a downward trend; the soluble solid content first increased and then decreased; and the total acid decreased first and then increased. The above indicators in magnetic field assisted refrigeration group changed more gently than that in conventional refrigeration group. Compared with conventional assisted refrigeration, the weight loss rate of fresh-cut apples treated by magnetic field combined with 4 9C refrigeration was reduced by 68.00%; the hardness was increased by 12.23%; the total number of colonies and total number of fungi were reduced by 64.15% and 37.50%; and the L" value did not change much. High content of soluble solids and total acid was maintained. [Conclusions] Magnetic field assisted refrigeration delays quality deterioration of fresh-cut apples during storage, prolongs shelflife, and further improves their edible quality and commodity value. [ABSTRACT FROM AUTHOR]

Metaverse is a virtual world, but it is possible and even becomes a trend that metaverse interacts with the real world along with the sci-tech and social development. Smart library is a main direction of modern library development, from informatization to digitization and then intelligent-based, modernization of library has been improved qualitatively. Emergence of metaverse brings a brand-new horizon to the generation and application of agricultural information, this paper made primary explorations the requirements and action mechanism of agricultural information on the construction of smart library within the external constraint of metaverse. [ABSTRACT FROM AUTHOR]

At present, the purification process of zeaxanthin mainly includes organic solvent extraction, ultrasonic-assisted extraction and enzyme extraction, and the content determination technology mainly includes ultraviolet-spectrophotometry and high performance liquid chromatography. In this paper, the purification process and content determination technology of zeaxanthin in recent years are reviewed in order to provide ideas and theoretical basis for further research and application of zeaxanthin. [ABSTRACT FROM AUTHOR]

[Objectives] The paper was to investigate the distribution characteristics of soil total nitrogen in low-efficiency forest land in the northern windy desert area of Jingbian County. [Methods] The distribution of soil total nitrogen in the 0-40 cm soil layer of 5 towns in the northern windy desert area of Jingbian County was studied through field sampling and laboratory detection. [Results] The average soil total nitrogen contents of Hongdunjie Town, Haizetan Town, Huanghaojie Town, Ningtiaoliang Town, Dongkeng Town and windy desert area in the 0-20 cm soil layer were 0.259, 0.224, 0.242, 0. 248, 0.431 and 0.275 g/kg, respectively. The soil total nitrogen content in Dongkeng Town was higher than those in other towns, while there was little difference among other regions. The average total nitrogen contents in the 20 -40 cm soil layer were 0.239, 0.285, 0.113, 0.262, 0.349 and 0.241 g/kg, respectively. The soil total nitrogen content in Huanghaojie Town was slightly lower than those in other towns, while that in Dongkeng town was higher. The variation coefficient of soil total nitrogen content in the survey area was greater than 30%, and there was great difference in spatial distribution. With the increase of soil depth, there was little change in soil total nitrogen content, namely the soil total nitrogen contents in 5 towns and windy desert area were not statistically different in the 0-40 cm soil layer. According to the nutrient grading standard of the second national soil survey, the soil total nitrogen content in the survey area was in the deficiency grade. [Conclusions] The research will provide a scientific guidance for the healthy and sustainable development of vegetation in arid regions. [ABSTRACT FROM AUTHOR]