ADUBAÇÃO NITROGENADA NO FEIJOEIRO APÓS PALHADA DE MILHO E BRAQUIÁRIA NO PLANTIO DIRETO
2014
ANTONIO CARLOS DE ALMEIDA CARMEIS FILHO | TATIANA PAGAN LOEIRO DA CUNHA | FÁBIO LUIZ CHECCHIO MINGOTTE | CAMILA BAPTISTA DO AMARAL | LEANDRO BORGES LEMOS | DOMINGOS FORNASIERI FILHO
The present study was carried out to evaluate the agronomic and technological performance of common-bean crop following three straw mulch production system (sole corn, corn-Urochloa ruziziensis inter- crop and sole U. ruziziensis) and topdressing nitrogen fertilization (0, 40, 80, 120 and 160 kg ha-1 of N) in the fourth year after the no-tillage system implementation. A randomized block design, in a splitplot array, with three replications was used. The use of U. ruziziensis intercropped with maize allowed a greater straw mulch formation and a more adequate coverage of the soil surface aiming the beans cultivation in succession. The nitrogen fertilization influenced the common-bean productivity in succession to U. ruziziensis unique and maize intercropped with U. ruziziensis. The common-bean crop in succession to the straw mulch production system with U. ruziziensis allowed higher grain production and sieve yield. The grain cooking time decreased due to the rates of N used in the dry bean crop in succession of maize exclusive.
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