Avaliaçao do cultivo da mandioca em fileiras duplas e simples consorciada com soja

Aiming to evaluate the effect of the planting systems in double and single rows, on cassava intercropped with soybean, a total of three trials were planted in 1982/83, 1984/85 and 1985/86, at the National Research Center for Cassava and Tropical Fruit Crops, in Cruz das Almas, State of Bahia, Brazil. The experiments were conducted in a randomized block design and the treatments were as follows: cassava planted in double rows, spacing 2.00 m, 2.50 m and 3.00 m, intercropped with four, five and six rows of soybean, respectively; cassava in single rows, spacing 1 .00 m x 0.60 m, intercropped with one row of soybean; and cassava in single and double rows not intercropped with soybean. The cultivars used were Cigana Preta (cassava) and Tropical (soybean). For cassava root and starch yield, and LER, best results were obtained in the treatments spaced 2.00 m between double rows. For soybean the best results were obtained in single crop and intercropped with 3.00 m spacing between double rows. eng