Economic aspects in production systems with food cropping for low income farmers in the microregion of Bragantina, Para state [Cultural practice; Cassava; Manihot esculenta; Corn; Zea mays; Cowpea; Vigna sinensis; Brazil. [Portuguese

• Published in: Boletim de Pesquisa - Centro de Pesquisa Agropecuaria do Tropico Umido (Brazil). no. 6
• Main Authors: Frazao D.A.C, Homma A.K.O, Andrade E.B. de
• Format: Book
• Language: Portuguese
• Published: 1980