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| Registros recuperados: 2.625 | |
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| Maia Júnior, Sebastião de Oliveira; Andrade, Jailma Ribeiro de; Lima, Robson Felipe de; Guimarães, Rafaela Félix Basílio; Souza, Allesson Ramos de; Nascimento, Ronaldo do. |
| Salinity is one of the environmental stresses that most affects plants' vital processes, especially germination. Brassinosteroids, including 24-epibrassinolide (EBL), have multiple actions in essential processes in plants. Thus, this research's objective was to evaluate the effects of EBL on tomato seeds' physiological conditioning on germination, growth, and production of dry seedling mass under salinity conditions. The experiment was carried out in a 2x5 factorial scheme, as follows: two concentrations of EBL (0 and 10-6 M) and five levels of salinity (0.5 control; 1.5; 3.0; 4.5 and 6.0 dS m-1), consisting of ten treatments, with four replications of 50 seeds. In isolation, the salt stress reduced the percentage of germination and germination speed index... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/4842 |
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| Silva, Abimael Gomes; Souza, Ana Caroline de; Lopes, Beatriz Garcia; Silva, Eliamara Marques da; Vieira, Gustavo Haralampidou da Costa. |
| O uso de fungicidas sintéticos é uma das estratégias de manejo de doenças mais utilizadas na agricultura, porém, busca-se manejos que sejam mais sustentáveis. Dessa forma, objetivou-se avaliar o potencial de óleos essenciais de Cedrela fissilis e Mentha spicata no controle, in vitro, do crescimento micelial do patógeno Corynespora cassiicola. O trabalho foi desenvolvido no Laboratório de Fitossanidade da Universidade Estadual do Mato Grosso do Sul (UEMS), Unidade Universitária de Cassilândia-MS. Os óleos essenciais, Cedro (Cedrela fissilis) e Hortelã (Mentha spicata) foram adquiridos comercialmente. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 2 categorias de óleos essenciais (hortelã e cedro) x 5 concentrações... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phytopathology; Fungicide resistance; Alternative control; Fitopatologia; Resistência a fungicidas; Controle alternativo. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6375 |
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| Soares, Deyvison de Asevedo; Andreotti, Marcelo; Vicentini, Maria Elisa; Freitas, Leandro Alves; Modesto, Viviane Cristina; Nakao, Allan Hisashi; Dickmann, Lourdes; Teixeira Filho, Marcelo Carvalho Minhoto. |
| Nitrogen fertilization in off-season sorghum may have lower cost-benefit ratios than expected due to the residual effect of previous crops. However, the use of growth-promoting bacteria can be an economical alternative to increase crop yields in Cerrado. The objective was to evaluate the response of grain sorghum to nitrogen fertilization and its inoculation by Azospirillum brasilense. This study aims to evaluate grain sorghum responses to nitrogen fertilization and A. brasilense inoculation. The experiment was carried out in a fully randomized block design and 5 x 2 factorial scheme, with five replications. Treatments consisted of applying N recommendation (120 kg N-urea ha-1) split as follows: 100% at sowing, 100% as topdressing, 25% at sowing and 75% as... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5117 |
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| Mello Duarte, Jéssica Rodrigues de; Basílio, Scarlet de Aguiar; Peixoto, Nei; Berti, Mariana Pina da Silva. |
| Campomanesia adamantium (Cambess.) Berg O. is a native of Savanna, popularly known as gabiroba, guavira, or gabiroba-do-campo, and has many uses, with its fruit being consumed fresh or processed. This study aimed to evaluate different doses of phosphorus and nitrogen in the initial development of gabiroba (Campomanesia adamantium) cultivated in pots. Five doses of phosphorus (0, 100, 200, 300, and 400kg ha-1 of P2O5) and three doses of nitrogen (0, 100, and 200 kg ha-1of N) were tested. The experimental design used was completely randomized in a 5x3 factorial scheme with six replications. The evaluations were carried out 120 days after plant emergence, and the variables analyzed were stem diameter, plant height, and number of leaves. Data were subjected to... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5825 |
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| Pinto, Pedro Henrique Gomes; Lima, Sebastião Ferreira; Andrade, Maria Gabriela Oliveira; Contardi, Lucymara Merquides; Ávila, Jorgiani; Reis, Breno Oliveira; Bernardo, Vitória Fátima; Vendruscolo, Eduardo Pradi. |
| The competition between soybean and weeds affects crop development due to reduced resources such as water, light, and nutrients, leading to yield losses. Thus, the study aimed to evaluate quantitatively and qualitatively, through phytosociology and seed bank, the weed presence in a soybean cultivation area with different predecessor cover crops. The experiment was installed under no-till system conditions using a randomized block design with nine treatments and three replications. The treatments were composed of the following cover crops, sorghum (Sorghum bicolor), crotalaria (Crotalaria ochroleuca), millet (Pennisetum americanum), Urochloa ruziziensis, U. brizantha cv. Piatã, fodder radish (Raphanus sativus L.), U. brizantha cv. Xaraés, millet + fodder... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5890 |
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| Wenneck, Gustavo Soares; Saath, Reni; Araujo, Larissa Leite de; Pereira, Gustavo Lopes; Rezende, Roberto; Wenneck, Guilherme Soares. |
| Crop biomass plays an important role, especially in tropical and subtropical crops that adopt the no-tillage system, whose decomposition is related to material composition and environmental conditions. The objective of this work was to analyze the decomposition of straw remaining from autumn/winter crops in the development of soybean in succession in the Midwest region of Paraná. The experiment was conducted between 2019 and 2021 in a completely randomized design, with eight treatments (spontaneous, black oat, brachiaria, corn, wheat, oilseed radish, corn + brachiaria, and black oat + oilseed radish) and four replications. After autumn/winter cultivation, biomass samples were dried and placed in nylon bags, returning to the original plot during soybean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Land cover; Organic matter; No-tillage system; Cobertura de solo; Matéria orgânica; Sistema plantio direto. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6534 |
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| Rodrigues, Mateus Gonçalves; Ramos, Eliene Wellita Vieira Barcelos; Buso, Wilian Henrique Diniz. |
| Brazil is the largest beans producer, and this legume is one of the primary sources of plant-based proteins. Some minerals, such asmanganese, are essential for this crop development. From the socio-economic importance of the beans crop, this study aims to evaluate theagronomic performance of irrigated common beans grown under different doses of manganese on two application periods. The experiment was conducted in the experimental area of the Instituto Federal Goiano, Campus Ceres (GO), adopting an experimental design arranged in a 2x4 factorial scheme with four replications, comprising two periods of application (V4 and R5 phenological stages) and four Mn doses (0, 150, 300, 450 g ha-1). The variables evaluated were plant height (m), number of pods per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fertilization; Agronomic Parameters; Grain Yield; Adubação; Parâmetros Agronômicos; Produtividade. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6018 |
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| Rocha, Weslany Silva; Barros, Ana Paula Ribeiro; Ribeiro, Marcelo Alves; Martins, Albert Lennon Lima; Chagas Júnior, Aloísio Freitas; Santos, Manoel Mota dos. |
| This study aimed to estimate the association of P2O5 doses with and without rhizobia inoculation to maximize the agronomic performance and yield of cowpea on an Oxisol in the Cerrado region of Tocantins. The experiments were carried out in two periods during the 2014/2015 growing season at the Experimental Farm of Gurupi belonging to the Federal University of Tocantins, using the variety BRS Novaera. Inoculation was carried out with a standard strain recommended for cowpea. The experimental designs were randomized in blocks in a 2×6 factorial arrangement, with the first factor consisting of the inoculation (presence and absence) and the second factor consisting of six phosphorus doses (0, 30, 60, 90, 120, and 150 kg ha−1 of P2O5), totaling 12 treatments... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5551 |
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| Mattei, Eloisa; Rabello de Oliveira, Paulo Sérgio; Costa Crusciol, Carlos Alexandre; Rocha de Moraes Rego, Carlos Augusto; Piano, Jeferson Tiago; da Silveira, Lucas. |
| Os sistemas integrados de produção lavoura-pecuária (SIPAs) em associação ao sistema de semeadura direta, sofrem ação do pisoteio animal ou do tráfego intenso de máquinas agrícolas, podendo resultar em alterações nas propriedades físicas do solo. O objetivo deste trabalho foi avaliar o efeito da adubação nitrogenada e manejos das forrageiras tropicais nas propriedades físicas do solo. O experimento foi realizado entre outubro de 2017 e janeiro de 2020, em Marechal Cândido Rondon – PR, em blocos ao acaso, com parcelas sub-subdivididas com uma testemunha adicional e quatro repetições. As parcelas foram constituídas por duas espécies forrageiras consorciadas com o milho: Urochloa brizantha e Magathyrsus maximum, mais a testemunha adicional (milho solteiro).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Porosity; Soil physical quality; Resistance to penetration; Integrated systems; Porosidade; Qualidade física do solo; Resistência à penetração; Sistemas integrados. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6318 |
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| Gomes, Flávio Henrique Ferreira; Soares, Frederico Antonio Loureiro; Sousa, Antonio Evami Cavalcante; Silva, Edson Cabral da; Teixeira, Marconi Batista; Bastos, Alefe Viana Souza; Costa, Cicero Teixeira Silva; Vidal, Vitor Marques; Dantas, Leonardo Rodrigues. |
| The study aimed to evaluate the nitrogen sources and doses application effects on the dry matter production and the sugar and alcohol gross yield of sugarcane (SP80-1816) in the cane-plant cycle in a dystrophic Red Oxisol. The experiment was conducted in the Fazenda Rio Paraiso II field, belonging to Usina Raízen, in Jataí - GO. The experimental design used was randomized blocks, arranged in a factorial scheme (2 x 4), with three replications. The treatments consisted of two nitrogen sources (urea and ammonium nitrate) and four nitrogen doses (0, 60, 120, and 180 kg ha-1). Dry matter variables were analyzed in sub-subdivided plots, as four evaluation periods were added (210, 250, 290, and 330 days after planting). The evaluation periods influenced... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5446 |
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| Wenneck, Gustavo Soares; Saath, Reni; Araujo, Larissa Leite de; Pereira, Gustavo Lopes; Oliveira, Giovanna Gabriela Ferreira de; Sá, Nathália de Oliveira; Volpato, Camila de Souza. |
| A consorciação de milho e Urochloa ruziziensis apresenta potencial para os sistemas de produção agrícola, permitindo a produção de grãos e biomassa remanescente. O estudo tem como objetivo avaliar a produtividade e a viabilidade econômica das modalidades de consórcio de milho e U. ruziziensis na região noroeste do Paraná. O experimento foi conduzido em Maringá-PR, em delineamento inteiramente casualizado com cinco tratamentos (milho solteiro; U. ruziziensis solteira; milho com U. ruziziensis na entre linha; milho com U. ruziziensis na mesma linha; milho com U. ruziziensis em linhas intercaladas) e quatro repetições. Foi analisado o desenvolvimento inicial e produtividade de grãos do milho, e produção de biomassa de milho e U. ruziziensis. Os dados foram... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomass; Grain production; No-Tillage System; Biomassa; Produção de grãos; Sistema Plantio Direto. |
| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6163 |
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| Silva, Abimael Gomes; Binotti, Flávio Ferreira da Silva; Matos, Adriana Hernandes Pinto; Silva, Talita Cristina Campos Pereira da; Silva, Tatiane Carla; Costa, Edilson. |
| This study aimed to evaluate the effect of nitrate salts and a growth regulator on seed conditioning. Subsequently, the responses of the influence of the leaf application of paclobutrazol (PBZ) and nitrogen on the quality of seedlings of Capsicum frutescens L. were evaluated. Two experiments were carried out. The first experiment was conducted in a completely randomized design to evaluate priming, as follows: T1 – control, T2 – control (water), T3 – 0.2% calcium nitrate, T4 – 0.2% potassium nitrate, T5 – 0.1% calcium nitrate + 0.1% potassium nitrate, T6 – PBZ, and T7 – PBZ + 0.1% calcium nitrate + 0.1% potassium nitrate. The second experiment was carried out in a completely randomized design in a 2×5 factorial scheme consisting of priming (absence and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5828 |
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| Marques Filho, Aldir Carpes; Ventura, Heitor Cardoso. |
| In sowing operation, it is essential to control the factors that can affect the quality of seed and fertilizer deposition. These factors range from the correct choice of dosing mechanisms to machine regulation and operating speed control. The present research aimed to analyze the influence of sowing speed on the productive performance of the corn crop. The study was carried out at Fazenda São Geraldo, in the municipality of Boracéia, São Paulo. Four operating speeds 3, 5, 7 and 9 km h-1 were applied in a seeder, with a mechanical horizontal seed meter. The experimental design was carried out in strips. The results showed that sowing operational speed directly influences the final corn yield. There is a positive correlation between sowing speed and... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6486 |
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| Pinto, Adriana Hernandes; Batista, Thiago Barbosa; Binotti, Flávio Ferreira da Silva; Binotti, Eliana Duarte Cardoso; Costa, Edilson. |
| Forage seeds often have a low germination percentage due to their seeds' dormancy, such as seeds of the genus Urochloa. Chemical scarification is chosen to overcome the dormancy, yet the seed's vigor level is not taken into account. On this wise, the method can harm the seed's quality. In this context, the study aimed to investigate the appropriate scarification period in brachiaria seeds and how the lot's thermal stress can affect this result. The experimental design was completely randomized, arranged in a 3x4 factorial scheme, designated by thermal stress (0, 24, and 48 hours) and periods of chemical scarification with concentrated sulfuric acid (0, 5, 10, and 15 minutes), with four repetitions. After scarification of the treatments, the seeds were... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5753 |
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| Santos de Andrade, Antonio Ricardo; Franco, Euler Soares; Guerra, Hugo Orlando Carvallo; Jadoski, Sidnei Osmar; Silva, Edijailson Gonçalves da; Cruz, Adiel Felipe da Silva; Ferreira, Maria Emanuely da Silva; Silva, Edes Torres da; Soares, Hammady Ramalho e. |
| The objective of this work was to evaluate the effects of splitting in three different doses of phosphorus and potassium, combined with each other, and it was applied fertirrigation in watermelon crop, and to evaluate their effects on fruit quality. The statistical was in a complete randomized block design, and the treatments were arranged in a factorial scheme (3 x 3) in subdivided splits, resulting in 9 treatments with tree replications, totaling 27 plots in the experimental area. In the horizontal plots the three doses of phosphorus fertilization (100, 150 and 300 kg.ha-1 of P2O5) were randomly allocated, and in the subplots the three potassium doses (50, 100 and 200 kg.ha-1 of K2O), were applied in fertirrigation. The cultivar used was Crimson Sweet.... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/5561 |
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| Santos, Rodrigo Souza; Nogueira, Sônia Regina; Gonçalves, Rivadalve Coelho. |
| The drying and death of soursop seedlings (Annona muricata L.) were reported on Viveiro da Floresta in Rio Branco, state of Acre, Brazil, in March 2017. The seedlings were obtained from municipalities of Dona Euzébia, Minas Gerais state, and the seeds from Capixaba, Acre state, Brazil. Seedlings with dieback symptoms were taken to the Laboratories of Entomology and Phytopathology of Embrapa Acre and analyzed with a stereomicroscope. The thrips found were preserved in ethanol (70%), mounted on slides, and identified in the specialized literature. Moreover, the isolation of fungi from leaves and stems was performed, which were inserted on Petri dishes with a PDA medium. The insect was identified as Pseudophilothrips sp., and the fungi pertained to the genera... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6301 |
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| Oliveira,Job T. de; Oliveira,Rubens A. de; Cunha,Fernando F. da; Santos,Eduardo S. dos. |
| ABSTRACT Studies that seek to identify a smaller number of soil attributes that represent others can generate less expenditure of time and financial resources for monitoring cultivated areas. Thus, this study aimed to analyze the spatial distribution and spatial autocorrelation of physical attributes of an Oxisol (Latossolo Vermelho Amarelo, Brazilian Soil Classification System). The evaluated attributes consisted of soil density (SD), total porosity (TP), free porosity (FP), field capacity (FC), permanent wilt point (PW), and total water availability (TW). Semivariogram adjustments and semivariance estimates were performed to characterize the structure and magnitude of the spatial dependence of soil attributes. The attributes were distributed on thematic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Precision agriculture; Spatial dependence; Geostatistics; Moran index. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000200255 |
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| Oliveira,Job T. de; Oliveira,Rubens A. de; Furtado Junior,Marconi R.. |
| ABSTRACT This study aimed to investigate relationships between the soil attributes that most affect garlic yield, which can be useful to choose a new area for the growing of this vegetable. We also aimed to study the effects of irrigation deficit at bulb formation stage (cloves) on final garlic quality and yield. The variables evaluated were garlic yield, irrigation, nitrogen, lateral shoot growing, plant water potential, bulb volume, leaf area index, soil electrical conductivity, soil mechanical resistance to penetration, and volumetric soil moisture content. Initially, the Pearson's correlation was estimated for the phenological indexes, and a correlation network was used to graphically express the results and to correct multicollinearity between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allium sativum L.; Path analysis; Precision irrigation; Precision agriculture. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000200215 |
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| Cunha,João P. A. R. da; Alvarenga,Cleyton B. de; Rinaldi,Paula C. N.; Marques,Matheus G.; Zampiroli,Renan. |
| ABSTRACT The use of remotely piloted aircrafts (RPAs) to apply plant protection products has grown a lot in agriculture worldwide. However, little research data are available regarding the efficiency and safety of this method, especially in Brazil. Thus, this review aimed to present the current scenario of scientific research involving RPAs in the application of pesticides. Several factors interfere with the quality of this type of application. Among them are height and flight speed, droplet generator elements, application rate, and spray solution properties. In general, applications have been performed between 1.0 m and 3.0 m of height and 1.0 m s-1 and 7.0 m s-1 of speed. As for the droplet generator element, there is still no clarity as to the ideal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Application technology; Drones; Pesticides; Spraying. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162021000200245 |
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| Registros recuperados: 2.625 | |
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