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7. Soybean seedlings development under different water levels inoculated with PcO6 and different application ways of synthetic ZnO NPs.

Author

Esper Neto, Michel, Britt, David William, Jackson, Kyle Alan, Almeida Junior, João Henrique Vieira de, Inoue, Tadeu Takeyoshi, and Batista, Marcelo Augusto

Subjects
WATER levels, ZINC oxide, CULTIVATED plants, SEEDLINGS, SOYBEAN, NANOPARTICLES
Abstract

Zinc oxide nanoparticle (ZnO NPs) has been used as a fertilizer alternative, although some applications technique and metal-microbial effects should be studied. This research evaluated the bioefficiency of synthetic ZnO NPs in soybean seedlings combined with different water status and with or without PcO6 bacteria. ZnO NPs performed in sand inhibited growth and fluorescence parameters. Still, when soybean seeds were exposed to ZnO NPs seed priming the root mass was increased, mainly in non-drought conditions. Soybean plants cultivated in drought conditions will have compromised development, although was demonstrate soybeans seed inoculation with PcO6 may decrease undesired effects from drought. Also, PcO6 soybean inoculation mitigate metal ZnO toxicity. Here, one of the first positive report about soybean interaction with PcO6 by drought and metal mitigation of toxicity. In addition, the best way to apply ZnO was through seed priming, while sand application was toxic and foliar application had no effects. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Development and characterization of enhanced urea through micronutrients and established technology addition.

Author

Abdo Rahmen Cassim, Bruno Maia, Lisboa, Izaias Pinheiro, Prestes, Clelber Vieira, de Almeida, Eduardo, de Carvalho, Hudson Wallace Pereira, Lavres, José, Orlandi Lasso, Paulo Renato, Batista, Marcelo Augusto, and Otto, Rafael

Abstract

It is necessary to increase the agronomic use efficiency of urea to reduce ammonia volatilization and increase crop yield. However, relying solely on urea for the enhanced efficiency technologies development could harm fertilizer integrity, resulting in reduced application quality and fertilizer storage time. The authors aimed at developing and characterizing the physical, chemical, and physicochemical quality of a novel enhanced efficiency fertilizers, synthesized from urea plus boron (B), zinc (Zn), nickel (Ni), or molybdenum (Mo) addition, with or without N-(n-butyl) thiophosphoric triamide (NBPT) associated. Hygroscopicity, hardness, salt index (SI), pH, and thermogravimetric decomposition were the parameters evaluated. Fertilizer quality was assessed through microscopic X-ray fluorescence, microtomography, and scanning electron microscopy. Micronutrients were added by coating or granulation; they were homogeneously distributed over the fertilizer’s granules. The fertilizers’ hardness increased up to 86% with Zn coated compared with uncoated. Granulated urea with B, Zn, Ni, or Mo had greater internal porosity, which resulted in lower hardness. Boron and Zn addition to the fertilizers increased the hygroscopicity in average 388% and 473%, respectively, compared with hygroscopicity observed for urea. Moreover, hygroscopicity was increased by an average of 56% with NBPT addition. Micronutrients addition to the urea granules increased the SI, while thermal decomposition stages of urea were unaffected by micronutrients addition. Enhanced efficiency fertilizers require characterization before agronomic efficiency tests due to changes in their physical, chemical, and physicochemical properties. Unfavorable changes could harm granules integrity and application efficiency in the field, resulting in economic losses to the industry and farmers. [ABSTRACT FROM AUTHOR]

Published
2024
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14. Effect of different methods of inoculation and co-inoculation of Bradyrhizobium spp. and Azospirillum brasilense on soybean agronomic performance in fields with a history of inoculation.

Author

Marcos Brignoli, Fernando, de Oliveira Zampar, Eder Junior, Henrique Vieira de Almeida Junior, João, Cassim, Bruno Maia Abdo Rahmen, Inoue, Tadeu Takeyoshi, and Batista, Marcelo Augusto

Subjects
AZOSPIRILLUM brasilense, BRADYRHIZOBIUM, VACCINATION, GRAIN yields
Abstract

The yield gain of soybean inoculated with Bradyrhizobium spp. or co-inoculated with Bradyrhizobium spp. and Azospirillum brasilense is variable. Inoculants can be applied in the sowing furrow or via seed treatment. There is a gap in our understanding of the efficacy of different inoculation methods. This study aimed to assess the agronomic efficiency of soybean inoculated and co-inoculated with Bradyrhizobium spp. and A. brasilense by different methods. The study was conducted in Paraná State, Brazil, in two seasons. Five treatments were tested: control; seed treatment with Bradyrhizobium spp. (SBr), seed treatment with Bradyrhizobium spp. + A. brasilense (SBr+Az), in-furrow treatment with Bradyrhizobium spp. (FBr), and in-furrow treatment with Bradyrhizobium spp. + A. brasilense (FBr+Az). Shoot dry weight, grain nitrogen content and grain yield were lower in 2018/19. In 2017/18, FBr+Az increased nodule number and dry weight compared with SBr. FBr+Az promoted a 47% increase in pods per plant compared with the control in both seasons. Regardless of season, grain nitrogen content was higher with FBr+Az (mean relative increase of 27%). FBr+Az was superior to SBr+Az in 2017/18, with a 12% increase in yield. Inoculation and co-inoculation improve morphological traits and soybean yield. In-furrow inoculation is more efficient than seed treatment. [ABSTRACT FROM AUTHOR]

Published
2023
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16. Spectral method for macro and micronutrient prediction in soybean leaves using interval partial least squares regression

Author

dos Santos, Glaucio Leboso Alemparte Abrantes, primary, Reis, Amanda Silveira, additional, Besen, Marcos Renan, additional, Furlanetto, Renato Herrig, additional, Rodrigues, Marlon, additional, Crusiol, Luís Guilherme Teixeira, additional, de Oliveira, Karym Mayara, additional, Falcioni, Renan, additional, de Oliveira, Roney Berti, additional, Batista, Marcelo Augusto, additional, and Nanni, Marcos Rafael, additional

Published
2023
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19. Spectral Method for Liming Recommendation in Oxisol Based on the Prediction of Chemical Characteristics Using Interval Partial Least Squares Regression

Author

dos Santos, Glaucio Leboso Alemparte Abrantes, primary, Besen, Marcos Renan, additional, Furlanetto, Renato Herrig, additional, Crusiol, Luís Guilherme Teixeira, additional, Rodrigues, Marlon, additional, Reis, Amanda Silveira, additional, de Oliveira, Karym Mayara, additional, Coneglian, Carolina Fedrigo, additional, de Oliveira, Roney Berti, additional, Batista, Marcelo Augusto, additional, and Nanni, Marcos Rafael, additional

Published
2022
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22. Nutrient Removal by Grain in Modern Soybean Varieties

Author

Esper Neto, Michel, primary, Lara, Lorena Moreira, additional, Maciel de Oliveira, Silas, additional, Santos, Rayssa Fernanda dos, additional, Braccini, Alessandro Lucca, additional, Inoue, Tadeu Takeyoshi, additional, and Batista, Marcelo Augusto, additional

Published
2021
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41. Macro and micronutrient contents in grain and soybean yield [Glycine max (L). Merr.] after foliar application of elemental sulfur

Author

Esper Neto,Michel, Besen,Marcos Renan, Coneglian,Carolina Fedrigo, Minato,Evandro Antonio, Lima,Rodrigo Sakurada, Inoue,Tadeu Takeyoshi, and Batista,Marcelo Augusto

Subjects
mineral nutrition, nutrição mineral, adubação suplementar, sulfur fertilizers, supplementary fertilization, fertilizantes sulfatados
Abstract

Low levels of organic matter in soil may limit the soybean crop development due to the low availability of sulfur (S) and the high demand of this nutrient by plants. The foliar fertilization is an alternative to supplement plant request. This study aimed at assessing the effect of applying foliar sulfur fertilizer in the soybean at different time and doses. The treatments studied were: (1) 0.0 kg ha-1of S foliar; (2) 0.5 kg ha-1of foliar S in beginning bloom (R1) stage; (3) 0.5 kg ha-1of foliar at beginning seed (R5.1) stage; (4) 0.5 kg ha-1of foliar S in R1 and R5.1; (5) 1 kg ha-1of foliar S in R1; (6) 1 kg ha-1of S foliar in R5.1; (7) 1 kg ha-1of foliar S in R1 and R5.1 using randomized block design with 4 replicates. The variables analyzed were: one thousand grain mass, yield and the macro and micronutrient contents in the grains. The soybean yield increased 614 kg ha-1with the application of foliar sulfur in relation to the control. The dose that obtained the best results was 0.5 kg ha-1applied into the R3 or R5.1 stage. The use of elemental sulfur via foliar may be an alternative of sulfur supplementation., Baixos teores de matéria orgânica no solo podem limitar o desenvolvimento da soja, devido a baixa disponibilidade de enxofre (S) no solo e pela alta demanda deste nutriente pelas plantas. Uma alternativa para complementar esta necessidade é a aplicação S foliar. O objetivo foi avaliar o efeito da aplicação de fertilizante foliar à base de enxofre na cultura da soja, em diferentes épocas e doses. Os tratamentos foram: (1) 0,0 kg ha-1de S foliar; (2) 0,5 kg ha-1de S foliar no estágio de início do florescimento (R1); (3) 0,5 kg ha-1foliar no estágio de início do enchimento de grãos (R5.1); (4) 0,5 kg ha-1de S foliar nos estádios R1 e R5.1; (5) 1 kg ha-1de S foliar no estádio R1; (6) 1 kg ha-1de S foliar no estádio R5.1; (7) 1 kg ha-1de S foliar nos estádios R1 e R5.1, delineados em blocos ao acaso com 4 repetições. As variáveis respostas foram: massa de mil grãos, produtividade e teores de macro e micronutrientes nos grãos. A produtividade dos grãos aumentou 614 kg ha-1com aplicação de S foliar em relação à testemunha. A dose que obteve a melhores resultados foi de 0,5 kg ha-1aplicado nos estádios R3 ou R5.1. A utilização de enxofre elementar via foliar pode ser uma alternativa de complementação.

Published
2019
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42. Modelling of N2O emissions from a maize crop after the application of enhanced-efficiency nitrogen fertilisers.

Author

Besen, Marcos Renan, Ribeiro, Ricardo Henrique, Minato, Evandro Antonio, Batista, Marcelo Augusto, Bayer, Cimélio, and Piva, Jonatas Thiago

Subjects
NITROGEN fertilizers, FERTILIZERS, UREA, NONLINEAR regression, NO-tillage, FERTILIZER application, CROPS, CORN
Abstract

Emission of nitrous oxide (N2O) can be reduced using enhanced efficiency nitrogen fertilizers (EEFs), such as urease inhibitors and coating technologies. In this study, we evaluated the potential of EEFs to reduce N2O emissions in maize in a clayey Inceptisol subjected to no-till management under summer subtropical conditions, in southern Brazil. The EEF sources used included urea containing N-(n-butyl) thiophosphoric triamide (UR-NBPT), polymer-coated urea (UR-pol), in addition common urea (UR), nitrate (CN) and control treatment without the application of nitrogen fertilizer. N2O emissions were assessed using the static chamber method during one maize season and analyzed through non-linear regression, using a logistic model. The accumulated emission was 0.817, 0.613, 0.457 and 0.393 kg N2O ha−1, for CN, UR, UR-pol and UR-NBPT, respectively. The maximum daily emission of N2O did not vary between amidic forms, however for CN it occurred on the 4th day after application (DAA), while for urea forms it occurred on average at 5.3 DAA. The average N2O emission factor (FE-N2O) was 0.51%, approximately half the standard factor proposed by the Intergovernmental Panel on Climate Change (IPCC), which is 1%. The application of nitrogen increased the maize yield in relation to the control, but the sources of nitrogen did not differ, with an average yield of 10,455 kg ha−1. Based on our findings, the use of UR-NBPT and UR-pol in subtropical agroecosystems provides environmental benefits, by reducing N2O emissions in comparison with conventional nitrogen fertilizers (CN and UR), however, the EEFs did not offer agronomic advantages in maize yield. [ABSTRACT FROM AUTHOR]

Published
2021
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43. Assessments in early growth of corn seedlings after hausmanite (Mn3O4) nanoscale seed priming.

Author

Esper Neto, Michel, Britt, David W., Jackson, Kyle Alan, Coneglian, Carolina Fedrigo, Cordioli, Vitor Rodrigues, Braccini, Alessandro Lucca, Inoue, Tadeu Takeyoshi, and Batista, Marcelo Augusto

Subjects
CORN seedlings, CORN growth, CORN development, GERMINATION, SEEDS, CORN seeds
Abstract

Nanofertilizer application is becoming a sustainable alternative for plants micronutrients supply. Seed nutrient priming before seeding reduces non-target dispersion; although, applying nanofertilizer in correct concentration must be narrowly chosen to prevent germination and development issues. Here, we evaluated corn seedlings development and germination after seed priming with Mn3O4 nanoparticle (NP), Mn3O4 bulk and MnCl2. Sterile seeds were soaked for 8 hours in priming solutions of 0, 20, 40, 80 and 160 mg L−1 for each Mn sources. The seeds vigor and germination were evaluated after 7 days on germination paper. Root, shoot and total lengths were measured as well as root, shoot and total dry biomass. Compared to the control, the Mn3O4 NP and Mn3O4 bulk promoted beneficial effects. Mn3O4 NP seed-priming exhibited a concentration dependent profile in improving seedling growth, with greatest benefit around 20 mg L−1, providing higher germination, vigor, dry biomass and length than control and the other source tested. Particle size plays an important role in the reactivity of Mn3O4 NP. On the other hand, seeds primed with soluble source did not differ from the control. These findings support NP-seed priming as an alternative to delivery micronutrients. [ABSTRACT FROM AUTHOR]

Published
2021
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46. Early growth of corn seedlings after seed priming with magnetite nanoparticles synthetised in easy way.

Author

Esper Neto, Michel, Britt, David W., Jackson, Kyle Alan, Coneglian, Carolina Fedrigo, Inoue, Tadeu Takeyoshi, and Batista, Marcelo Augusto

Subjects
CORN growth, CORN seedlings, CORN development, MAGNETITE, FACTORIAL experiment designs, CORN seeds
Abstract

Nanoparticle (NP) use is becoming important alternative in different branches of science such as in agriculture, used as new source of fertiliser. In this study, it was tested iron (Fe) NP, applied as corn seed priming. In order to evaluate the early growth and development of the corn seedling a factorial experiment (5 × 3) was performed in a complete random way design with 4 replications. One of the factors were concentrations of (0, 20, 40, 80, 160 mg L−1) related to iron inside and the factor with three levels were sources (Fe3O4 NP, Fe3O4 bulk and FeCl3). 50 sterile seeds were the plot composition, which were soaked in the different Fe concentration solution containing a total volume of 200 mL for 8 h. Germination and biometric development were evaluated. Fe NPs promoted beneficial responses for seedling growth compared to other Fe sources tested here. It was realised that Fe3O4 NP concentration beneficial effects was lower compared to the other tested sources. Particle size had an important assignment in the bioavailability. The plant response reached in this research indicated iron NPs can consist efficiency for corn seed priming when applied between 50 and 70 mg L−1 concentration based on interpolation. [ABSTRACT FROM AUTHOR]

Published
2021
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50. Soil chemical alterations of a Dystroferric Red Latosol (Oxisol) treated with an alkaline effluent from a pharmaceutical industry

Author

Esper Neto, Michel; Universidade Estadual de Maringá, Batista, Marcelo Augusto; Universidade Estadual de Maringá, Inoue, Tadeu Takeyoshi; Universidade Estadual de Maringá, Bertonha, Altair; Universidade Estadual de Maringá, Costa, Antônio Carlos Saraiva da; Universidade Estadual de Maringá, Esper Neto, Michel; Universidade Estadual de Maringá, Batista, Marcelo Augusto; Universidade Estadual de Maringá, Inoue, Tadeu Takeyoshi; Universidade Estadual de Maringá, Bertonha, Altair; Universidade Estadual de Maringá, and Costa, Antônio Carlos Saraiva da; Universidade Estadual de Maringá

Abstract

Effluents from different industrial supply conglomerates are often discarded in the environment without proper treatment. The concern for an economically viable industrial production line, which is both environmentally sound and socially acceptable, is increasing. Some of these effluents are alkaline in nature and may be used as an alternative to chemical conditioners for acidic soils in agricultural systems. This research aimed to evaluate changes in the chemical attributes of a Dystroferric Red Latosol (Oxisol) after application of an effluent from a pharmaceutical industry. The experiment was conducted in a greenhouse using PVC tubes of 1-m length and a 0.2-m diameter filled with soil and different doses of the effluent. After 3 days, 100 mm of water was applied to each treatment. The PVC tubes were incubated for 30 days; thereafter, the tubes disassembled, and soil chemical analyses were made at different soil depths: 0-0.2, 0.2-0.4, 0.4-0.6, 0.6-0.8, and 0.8-1.0 m. The effluent applications significantly altered the soil elements in the 0-0.2 m layer, increasing the concentrations of K+, P, Mn2+, Na+, Cu2+, H+, Ca2+, Al3+ and the soil pH. In the subsurface layers, the concentration of the elements Zn2+, Cu2+, K+, and Na+ also changed significantly. In general, the application of pharmaceutical industry residue improved soil chemical attributes., Os efluentes das diversas cadeias produtivas industriais são muitas vezes descartados no ambiente sem tratamento adequado. A preocupação por uma linha de produção industrial economicamente viável, ambientalmente correta e socialmente aceita é cada vez mais preconizada. Alguns desses efluentes apresentam caráter alcalino, e podem ser utilizados como condicionadores químicos de solos ácidos, em sistemas agrícolas. Objetivou-se com a realização do presente trabalho, avaliar alterações químicas de um Latossolo Vermelho distroférrico, após aplicação de efluente da indústria farmacêutica. O experimento foi realizado em casa de vegetação e conduzido em tubos de PVC de 1 m de comprimento e 0,2 m de diâmetro. Nos tubos, preenchidos com solo, foram aplicadas diferentes doses do efluente. Após 3 dias, 100 mm de água foram aplicadas sobre cada tratamento. As colunas foram incubadas por 30 dias, posteriormente desmontadas e feitas análises químicas nas diferentes profundidades: 0-0,2; 0,2-0,4; 0,4-0,6; 0,6-0,8 e 0,8-1,0 m. As aplicações do efluente fizeram com que alguns elementos do solo aumentassem significativamente sua concentração, principalmente na camada de 0-0,2 m entre eles estão o K+, P, Mn2+, Na+, Cu2+, H+, Ca2+ e Al3+, além do pH. Nas camadas subsuperficiais os elementos Zn2+, K+, Cu2+ e Na+ sofreram alterações significativas. A aplicação do resíduo da indústria farmacêutica melhorou as características químicas do solo.

Published
2016

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