Viabilidade econômica de tecnologias de manejo da irrigação na produção do feijão-caupi, na região dos cocais-MA

Junior, Wady Lima Castro; Oliveira, Rubens Alves de; Silveira, Suely de Fátima Ramos; Andrade, A. S. de

doi:10.1590/1809-4430-eng.agric.v35n3p406-418/2015

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…The experiment was conducted with radish crops at the Experimental Field of the Federal Institute of Education, Science, and Technology of Maranhão, in Codó, in the mesoregion East of the state of Maranhão, Brazil (4°26'51''S, 43°52'57''W, and altitude of 48m) (Castro Júnior et al, 2015).…”

Section: Methodsmentioning

confidence: 99%

Agronomic performance of Raphanus sativus L. cultivars grown under different spacings

Alvim

Sobrinho

Cantanhede

et al. 2020

rcia

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An ideal spacing between plants should be established for the optimization of radish (Raphanus sativus L.) crops since the plant spatial distribution of plants affects the crop yield. This study was conducted aiming to evaluate the agronomic performance of radish cultivars grown under different spacings. The experiment was conducted at the Experimental Field of the Federal Institute of Education, Science, and Technology of Maranhão, in Codó, MA, Brazil, from June to July 2017. The experiment was conducted in a randomized block design with five replications, using a 2×2 factorial arrangement. The factors consisted of 2 cultivars (Sparkler Ponta Branca and Saxa) and 2 spacings between plants (5 and 8cm), totaling 20 experimental plots. Data were collected in 6 plants from each experimental plot. The agronomic parameters: total fresh weight (TFW), root fresh weight (RFW), root mean diameter (RMD), root means length (RML), and root yield (RY) of the radish plants were evaluated. The factors (cultivars and spacing between plants) had no significant effect on TFW, RFW, RML, and RMD. The spacing between plants has a significant effect on the yield of radish crops of the cultivar Saxa, and higher yields are found when using the spacing of 5cm.

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Section: Methodsmentioning

confidence: 99%

Agronomic performance of Raphanus sativus L. cultivars grown under different spacings

Alvim

Sobrinho

Cantanhede

et al. 2020

rcia

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“…Aliar o lucro com a economia da água na irrigação é algo complexo e desafiador, visto que, diante do fator econômico, uma irrigação ótima implica em menores lâminas aplicadas, o que pode causar a redução da produtividade da cultura. No entanto, esta poderá trazer algumas vantagens significativas, como: aumento da eficiência da irrigação, redução dos custos da irrigação e redução dos riscos associados aos impactos ambientais decorrentes da irrigação (Castro Júnior et al, 2015).…”

Section: / 518unclassified

“…Os métodos e equipamentos de irrigação devem ser aperfeiçoados para reduzir as perdas e induzir ao manejo adequado, relacionando com o solo, a planta e o clima. Pequenas alterações na eficiência do uso da água podem torná-la disponível para outros fins e, quanto maior for a eficiência, menor serão os custos de bombeamento, condução e distribuição da água (Castro Júnior et al, 2015).…”

Section: Introductionunclassified

Rentabilidade do milho e do feijão submetido a diferentes lâminas de irrigação em Mato Grosso

Osti

Dallacort

Tieppo

et al. 2019

Rev. Econ. Sociol. Rural

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Resumo Quantificar o consumo hídrico para a irrigação é essencial para otimizar o uso da água e contribuir para o alcance da eficiência econômica, que pode ser articulada com planejamento e estratégias de manejo. O objetivo desta pesquisa consiste em quantificar o custo variável do manejo da irrigação e a rentabilidade de milho e feijão aliados à economia do recurso hídrico no estado de Mato Grosso. Foram levantados os dados das lâminas de irrigação para as culturas do milho e o feijão, dos custos de produção e receitas com as vendas através de dados do Imea e da Conab para a safra 2015/2016. Os dados foram submetidos à Razão Benefício/Custo (B/C) para fins de análise da rentabilidade, e à análise da eficiência do uso da água. As lâminas de 190 mm para a irrigação do milho e de 522,17 mm para a irrigação do feijão são as melhores a serem aplicadas pelo produtor, visando equilíbrio econômico e ambiental, pois apresentaram maior eficiência no uso da água aliadas à maior taxa de rentabilidade frente às demais lâminas.

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“…Many studies have been conducted to assess the influence of agricultural practices and climatic conditions on the yield and economic efficiency of cowpea (CASTRO JÚNIOR et al, 2015;SILVA et al, 2016;ANDRADE JUNIOR et al, 2018). In this context, the objective of this study was to determine in which cultivation time cowpea has maximum agronomic and economic efficiency as a function of water stress under the edaphoclimatic conditions of the semi-arid region of northeastern Brazil.…”

Section: Introductionmentioning

confidence: 99%

Water Demand and Technical-Economic Viability of Cowpea Grown in Different Production Scenarios

Ferreira

Silva

2022

NAT

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Water demand and agronomic and economic efficiency of cowpea are strongly related to agricultural practices and climatic conditions. This study aimed to determine in which cropping season cowpea has the highest water demand and maximum agronomic and economic efficiency as a function of water stress under the edaphoclimatic conditions of the semi-arid region of northeastern Brazil. Cowpea was cultivated in two cropping seasons (rainy and dry) and subjected to five forms of water stress (without water stress, water suspension for 5, 10 and 15 days and rainfed cultivation) and four replicates, started in the flowering and grain filling stages, under no-tillage system. Agronomic (yield, biomass, harvest index and water use efficiency) and economic (gross revenue, net revenue, rate of return and profit margin) parameters were evaluated. The water demand of cowpea in the dry season was 20.2% higher than in the rainy season; consequently, the Kc values obtained were also higher in this period. The climatic conditions that occurred during the cropping seasons and water stress negatively influenced the agronomic performance and financial profitability of cowpea, being more evident in the rainfed cultivation. For the edaphoclimatic conditions of the study, cowpea can be grown without significant losses of yield and profitability in both cropping seasons, provided that the water stress does not last more than 10 days during its reproductive stage.

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Viabilidade econômica de tecnologias de manejo da irrigação na produção do feijão-caupi, na região dos cocais-MA

Cited by 7 publications

References 3 publications

Agronomic performance of Raphanus sativus L. cultivars grown under different spacings

Agronomic performance of Raphanus sativus L. cultivars grown under different spacings

Rentabilidade do milho e do feijão submetido a diferentes lâminas de irrigação em Mato Grosso

Water Demand and Technical-Economic Viability of Cowpea Grown in Different Production Scenarios

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