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[Objectives] To explore the relationship between rural industry revitalization and land resource utilization. [Methods] Starting from the connotation of rural industry revitalization and land resource utilization, this study explores the relationship between rural industry revitalization and land resource utilization, Taking Ganning Town with typical mountain industry as the research area, this paper analyzed the relationship between rural industry revitalization and land resource utilization through a combination of field research and literature analysis, found out the existing problems and came up w'ith pertinent recommendations. [ Results] (i) Rural industry revitalization is both mutually reinforcing and mutually restrictive, (ii) In this study, the land use types of Ganning Town were divided into nine categories, including farmland, garden land, forest land and grassland, and their industrial functions and development models were identified, and the corresponding framework of land resource utilization and rural industry revitalization in Ganning Town was constructed, (iii) In view' of the problems existing in Ganning Tow'n, this paper proposed to change the ideological concept and enhance understanding, improve the utilization rate of idle land and promote rural industry revitalization, and accelerate land consolidation and restoration, and promote sustainable development. [Conclusions] It is necessary to correctly understand the tw'o-way role and dynamic change relationship between rural industry revitalization and land resource utilization, solve the problem from the perspective of development, adopt development strategies according to local conditions, and take the road of sustainable development. [ABSTRACT FROM AUTHOR]

Starting from the transformation and upgrading of traditional culture, the optimization and development of traditional industries, and the innovation of traditional models, this paper used cultural entrepreneurship to trigger the thematic business engine, and explored Zhucheng City with its unique dinosaur culture. It proposed "Three-integration" rolling development mode to build Zhucheng into a new highland of cultural entrepreneurship and create new competitiveness under the background of agricultural and rural modernization development. This paper also explored from the perspective of multi-subject collaboration of cultural entrepreneurship. Government needs to establish rolling development pilot projects and promote their application; enterprises need to play the engine role of thematic business through the mode of "getting larger to help smaller ones"; the masses need to pay attention to the reaction of culture to the economy, so as to promote the wave of high-level promotion of cultural inheritance and urban-rural integration. [ABSTRACT FROM AUTHOR]

As China's largest oil crop, rape occupies a central position in ensuring the safety of China's cooking oil supply. This paper introduced China's rapeseed industry from the rape type, rapeseed production, planting area, national rapeseed production protected area, rape national dominant characteristic industrial clusters, and rapeseed industry, etc. Besides, from the aspects of geographical indication products, geographical indication trademarks, and geographical indications of agricultural products, this paper discussed the intellectual property protection of geographical indications of rape, rapeseed, and rapeseed oil in China. It analyzed the main problems such as the lag in the formulation of relevant standards for geographical indications and the low use of special signs for geographical indications, and finally came up with recommendations including building a public brand of geographical indications and expanding foreign exchanges of geographical indications. [ABSTRACT FROM AUTHOR]

Only by improving the production capacity of domestic herbal edible oil can China ensure the safety of the supply chain of the important industrial chain of vegetable edible oil in China and practice the big food concept. In addition to rice, maize, and soybean for using as grain and oil, there are eight kinds of herbaceous edible oil crops in Hubei Province, including rape, peanut, sesame, sunflower, perilla ( perilla seed), cotton, linen and tiger nut ( Cyperus esculentus). This paper studies the main industries of herbaceous edible oil crops and their intellectual property resources in Hubei Province, and analyzes the main problems of its inheritance, innovation and high-quality development under the strategy of strengthening the country with intellectual property. Finally, it proposes the countermeasures of carrying forward and inheriting traditional knowledge and traditional culture, maintaining the biodiversity of crops, strengthening the creation of new plant varieties and breeding patents, and opening up the whole chain of intellectual property rights. [ABSTRACT FROM AUTHOR]

Taking 887 relevant papers in the Web of Science database as the analysis object, and with the help of Citespace III software developed by Chen Chaomei's team, this study makes a visual mapping analysis of the brand community field from the perspective of research hotspots, cooperation between countries (regions) and institutions, and co-citation networks. The study has found that research hotspots in this field focus on brand community, community, consumer, internet, model, loyalty, word-of-mouth, impact and trust. The United States has absolute strength in leading the research frontier of this field, and the degree of cooperation within the country is higher than that of international cooperation. The core papers in this field were published in from authoritative journals in the field of management. Through the analysis of the core papers, readers can further understand the development context of the brand community field. [ABSTRACT FROM AUTHOR]

The Fundamentals of Combustion course is an important compulsory course for Energy and Power Engineering Majors under the background of carbon peaking. According to the characteristics of teaching and scientific research at present, combined with the characteristics of complexity, interdisciplinary and rapid technology update of this course, this paper discusses the teaching content and teaching design of this course to meet the needs of talents of production, teaching and research under the background of new engineering course. It proposes more applicable teaching methods and practical means to broaden students' horizons, stimulate students autonomous learning momentum, master the professional knowledge application ability, and cultivate innovative and competitive engineering professionals to adapt to the new energy strategy. [ABSTRACT FROM AUTHOR]

This paper summarized the requirements of organic agriculture for soil environment, fertilizer application and irrigation water quality, put forward safeguard measures for organic agriculture in terms of soil, fertilizer and water, and finally came up with recommendations for strengthening the use of soil fertilizers in organic agriculture. [ABSTRACT FROM AUTHOR]

Only by developing woody edible oilseeds industry can we ensure the safety of the important industrial chain and supply chain of vegetable edible oil in China. There are 13 kinds of woody edible oil plants in Hubei, including Camellia oleifera Abel (oil tea), Juglans regia L. (walnut), Olea europaea L. (olive) and Paconia suffruticosa (oil peony). This paper studies the main industries of woody edible oilseeds in Hubei Province and their intellectual property resources, and analyzes the main problems in their intellectual property protection, inherit- ance, innovation and development. Finally, it proposes some strategies, including carrying forward the traditional knowledge related to woody edible oilseeds, innovating the "agricultural chip", creating key counties of national woody edible oil seeds, and developing industrial clusters with national advantages and characteristics. [ABSTRACT FROM AUTHOR]

Formononetin is an isoflavone phytoestrogen mainly existing in leguminous plants such as Trifolium pretense, Spatholobus suberectus, etc. Studies have proved that formononetin has good anti-inflammatory, antitumor, antioxidant, antidepressant, anxiolytic and other pharmaco- logical effects. This paper summarizes the pharmacological action and molecular mechanism of formononetin, in order to provide a theoretical basis for the development and clinical application of formononetin. [ABSTRACT FROM AUTHOR]

In recent years, the edible fungi industry in Hebei Province has developed rapidly, with gradually increased cultivation scale and production output, and has become the pillar industry of the province, playing a certain role in promoting the development of rural economy and rural revitalization. Based on the in-depth analysis of the development status, future development direction and current constraints of the edible fungi industry in each typical county of Hebei Province in recent years, the paper puts forward corresponding development countermeasures, which has certain reference value for the county-level edible fungi industry of Hebei Province to promote rural revitalization. [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]

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]

[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]

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]

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]

"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]

With the rise of various new reading media and the rapid development of the digitization of paper resources, the traditional function positioning of university libraries based on information query is facing unprecedented challenges. How to deal with the change of social information? The library should be demand-oriented, re-examine its own value and find a new starting point. With the help of the concept of customer delivered value and based on 4P theory, this paper constructs the value chain of university library from the dimensions of product, image, personnel and service, and forms a multi-dimensional development positioning system. [ABSTRACT FROM AUTHOR]

For a long time, rural economic development has put economic benefits in the first place, ignoring the impact of unreasonable land use on local land resources and ecological environment, which is not conducive to the long-term high-quality development of local economy and sustainable land use. There is an urgent need to study the relationship between sustainable land use and rural economic development in order to achieve the coordinated development of the two. By using the methods of literature research and field investigation, this paper studies Meining Village, Tiandong County, Guangxi Zhuang Autonomous Region. The study found that farmers tend to plant pure eucalyptus forest, single land use structure, short-term rotation planting model and traditional afforestation and land preparation technology are not conducive to sustainable land use in forest areas, and affected by economic and educational factors, farmers' livelihood is relatively simple, so the development of rural economy will be restricted. In view of the above problems, this paper puts forward the following solutions; changing the land use model of Meining Village to promote sustainable land use; introducing advanced science and technology and diversified livelihood ways to promote the sustainable development of rural economy; building a virtuous circle of sustainable land use and rural economic development. [ABSTRACT FROM AUTHOR]

Neo-Chinese style is popular nowadays and it is wildly used in rural landscape, with only few theories. Under the background of rural revitalization, this paper discussed practice types and design features of neo-Chinese style in rural landscape. Some typical and famous villages of Ningbo, Quzhou and Lishui cities in Zhejiang Province were chosen as cases in this paper. It is committed to providing some theories, inheriting rural culture and promoting rural revitalization. [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]

[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]

[Objectives] The paper was to study the impacts of sand and dust storms (SDS) on regional economy. [Methods] In this paper, we combined the computable general equilibrium (CGE) model and the Monte Carlo method to examine the impact of SDS on the regional economy, with a focus on GDP, price index, employment rate, industrial structure and output, income and expenditure. We extended the standard CGE model, introduced the stochastic parameters into the production module, which had significant impact on economic output, and inserted the rate of change of the total labor supply and the expenditure share of early warning and protective measures into the income and expenditure module. [Results] SDS had significant impacts on regional GDP, employment rate, and industrial output from a macro perspective, and can reduce the income of residents and enterprises and increase expenditures from a micro perspective. The impact can be reduced by taking early warning and protective measures. [Conclusions] The protective measures taken for different grades of SDS have different effects. [ABSTRACT FROM AUTHOR]

Through the investigation, this paper analyzes the important restricting factors for the tobacco farmers in Enshi Badong mountainous area from 2018 to 2021, including the age structure, the loss situation, the number of years of planting tobacco, the scale of planting tobacco and the benefit of planting tobacco. This paper puts forward some corresponding measures and suggestions, such as cultivating the team of professional tobacco farmers, establishing the team of young tobacco farmers, expanding professional services, developing "tobacco plus" diversified industries, and popularizing suitable agricultural machinery in mountainous areas in order to effectively improve the stability of the team of tobacco farmers. [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]

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 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]

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]

[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]

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]

"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]

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]

Cropland system is the key to the problems of agriculture, rural areas and farmers, and its reform affects the process of rural revitalization to a great extent. This paper studies the measures and experiences of cropland system reform in Japan, South Korea and Taiwan. The results show that it is a common practice for the reform of cropland system in various countries to formulate strict laws and regulations, promote cropland transfer through government subsidies, guide cropland transfer in various forms, gradually relax restrictions on cropland transfer, and give full play to the role of intermediary organizations. Based on the above conclusions, this paper puts forward some suggestions for the reform of cropland system in China. [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]

This paper makes an investigation and analysis of the existing red buildings in Pengfang Township, and puts forward the circular development model of "Red Building + Rural Tourism" after systematic arrangement. And through the dialectical perspective of the protection, inheritance, development and utilization of architectural culture under rural revitalization, this paper observes how the villages with red buildings help to boost the rural economy by integrating its own internal and external resources under the background of the great revival of the national rural traditional culture, so as to realize the protective development of rural red buildings. [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]

[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]

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]

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]

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]

The eco-environmental damage compensation system is not only an important part of the central government's Overall Plan for the Reform of Ecological Civilization System and special plan, but also a blank point and weak link in the construction of eco-environmental protection system. From the construction of ecological civilization system, the fragility of ecological environment and the history of past damage, the comparative analysis of relevant law's and regulations, and the connotation of the concept of ecological environment, this paper expounds the importance, urgency and necessity of the reform of eco-environmental damage compensation system and the technical complexity of damage compensation judgment. In accordance with the local legislation and practical cases in the reform of eco-environmental damage compensation system in Shaanxi Province, this paper puts forward legislative and policy suggestions to accelerate the reform of eco-environmental damage compensation system. [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]