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机译:ECONOMIC FEASIBILITY OF IRRIGATION MANAGEMENT TECHNOLOGIES FOR COWPEA PRODUCTION IN THE COCAIS REGION (MARANHAO STATE, BRAZIL)
IFMA, Dept Ensino, Codo, MA, Brazil;
Univ Fed Vicosa, Dept Engn Agr, Vicosa, MG, Brazil;
Univ Fed Vicosa, IPPDS, Dept Adm & Contabilidade, Vicosa, MG, BrazilEmbrapa Meionorte, Ctr Pesquisa Agr Meionorte, Teresina, PI, Brazil;
Vigna unguiculata (L.) Walp.; profitability; production costs;