Agronomic performance of sweet potato crop in succession to leguminous plants in monocropping and intercropped with corn

ABSTRACT This study aimed to evaluate sweet potato performance in succession annual herbaceous leguminous plants, monocropping or intercropped with corn, under agroecological management, Baixada Fluminense conditions. The experimental design was randomized blocks, five treatments and four replicates. consisted of pre-cropping the following species: crotalária (Crotalaria juncea) system, corn (Zea mays), jack bean (Canavalia ensiformis) spontaneous vegetation. results showed that monocropped reached greatest dry biomass accumulation during two consecutive years succession. In second year, this treatment provided greater accumulated amounts N, K Mg plant biomass. Growing potatoes is advantageous, as it an increase vegetable productivity year