不同灌溉深度豇豆栽培经济指标研究

Erika de O. T. de Carvalho, D. Costa, Denilson B. da Luz, M. L. Rua, Maria de L. A. Velame, Adrielle C. Monteiro, Igor C. de O. Vieira, J. Pinto, G. S. T. Fernandes, H. Nunes, P. Souza, M. A. S. Santos
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引用次数: 0

摘要

豇豆在巴西北部和东北部地区具有很高的社会经济重要性,因此寻找能够提高生产力和经济回报的替代品已成为一项重要挑战。因此,本研究的目的是估算和评价2015年和2016年不同深度滴灌豇豆生产的经济指标。灌溉处理以作物蒸散量为基础。试验采用完全随机区组设计,4个处理(0、25、50、100%等),6个重复。为了进行经济分析,结果被外推到一公顷的面积。2015年的生产率低于2016年;然而,在所有处理中,当植物在充足的水分供应下生长时,它总是较高的。在这两年中,灌溉条件下的总运营成本都高于旱作条件下的运营成本。2015年和2016年,100% ETc处理的豇豆袋产量(60公斤)和总收入分别比雨养处理高17袋/公顷,相当于1,020公斤/公顷(总收入711.48美元)和16袋/公顷,相当于960公斤/公顷(总收入867.12美元)。缺水限制了这两年的豇豆产量,但只有在2015年才使种植在经济上不可行。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Economic indicators for cowpea cultivation under different irrigation depths
ABSTRACT Cowpeas are of high socioeconomic importance in the North and Northeast regions of Brazil, whereby the search for alternatives that offer increased productivity with financial returns has become an important challenge. Thus, the objective of this study was to estimate and evaluate the economic indicators of cowpea production in 2015 and 2016 when applying drip irrigation to different depths. Irrigation treatments were based on crop evapotranspiration (ETc). The experiment was laid in a randomized complete blocks design with four treatments (0, 25, 50, and 100% ETc) and six replications. For economic analysis, the results were extrapolated to an area of one hectare. Productivity in 2015 was lower than that in 2016; however, in all treatments, it was always higher when plants were grown under adequate water supply. In both years, the total operating costs were higher under irrigation than under rainfed conditions. The 100% ETc treatment resulted in a greater number of cowpea bags (60 kg) produced and a higher gross revenue than the rainfed treatment by 17 bags ha-1, equivalent to 1,020 kg ha-1 (gross revenue US$ 711.48) and 16 bags ha-1, equivalent to 960 kg ha-1 (gross revenue US$ 867.12), in 2015 and 2016, respectively. Water deficit limited cowpea yield in both years but made cultivation economically unfeasible only in 2015.
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