Adubação nitrogenada no feijoeiro após milho safrinha consorciado com Urochloa brizantha e Urochloa ruziziensis
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Data
2012-01-01
Autores
Cordova de Souza, Emerson de Freitas [UNESP]
Soratto, Rogério Peres [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Universidade Estadual de Londrina (UEL)
Resumo
Common bean plant demanding higher amounts of nitrogen (N), but are scarce information about common bean N demanding when grown after maize intercropped with palisade grass. The purpose of this study was to evaluate the effect of N fertilization in common bean grown under no-tillage system, in succession to out-of-season maize intercropped with Urochloa brizantha (Syn. Brachiaria bryzantha) or Urochloa ruziziensis (Syn. Brachiaria ruziziensis). The experiment was conducted during two agricultural years, on a dystroferric Haplorthox. A randomized blocks design, in a split plot scheme, with four replicates, was used. The plots were composed by two types of straws previous common bean crop (maize + U. brizantha and maize + U. ruziziensis) and subplots were composed by four N rates (0, 35, 70 and 140 kg ha(-1)), using ammonium nitrate as source. Nitrogen application improved N nutrition and increased the growth of common bean plants grown after out-of-season maize intercropped with U. brizantha or U. ruziziensis, but little influenced grain yield. Grain yield of common bean grown after out-of-season maize intercropped with U. brizantha or U. ruziziensis was similar.
Descrição
Palavras-chave
Phaseolus vulgaris, nitrogen, palisade grass, no-tillage
Como citar
Semina-ciencias Agrarias. Londrina: Universidade Estadual de Londrina (UEL), v. 33, p. 2669-2680, 2012.