Technical and economic analysis of irrigation of asparagus bean in protected environment

Engenharia Agrícola

Wellington G. Silva²  Jacinto A. Carvalho¹  Eduardo C. Oliveira¹  Joaquim A. Lima Júnior¹  Buno M. Silva¹ 

[1] ,UFAM Faculdade de Ciências Agrárias Departamento de Engenharia Agrícola e Solos

关键词: Vigna unguiculata spp. sesquipedalis;    irrigation management;    economic viability;    benefit/cost ratio;    Vigna unguiculata spp. sesquipedalis;    manejo de irrigação;    viabilidade econômica;    relação benefício/custo;   

DOI  :  10.1590/S0100-69162013000400007

来源: SciELO

【 摘 要 】

This experiment was conducted in Lavras - state of Minas Gerais (MG), Brazil, in a protected environment, and aims to estimate the irrigation depths that maximize productivity and economic returns in the cultivation of asparagus bean and analyze the economic viability of irrigation management. The experimental delineation was randomized blocks with five treatments and four replications. The treatments consisted of five drip irrigation depths: 40, 70, 100, 130 and 160% of water replacement depth up to field capacity. The depths of water that maximize productivity and economic returns were obtained from the regression model adjusted to productivity data, cost of product relations and water cost. The economic viability was achieved on the benefit/cost ratio basis. The depth with the maximum economic return was estimated in 434.4mm, with a productivity of 35,160.6kg ha-1, which is economically viable for the cultivation of asparagus bean, with a expected profitability of R$ 1.70 for every real invested.

【 授权许可】

CC BY   
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