Age of No-Till System and Nitrogen Management on Common Bean Nutrition and Yield

Autor(es)

Soratto, Rogerio P. ^[1] ; Perez, Adelson A. G. ^[2] ; Fernandes, Adalton M. ^[3]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Coll Agr Sci, Dep Crop Sci, BR-18610307 Sao Paulo - Brazil

^[2] Sao Paulo State Univ UNESP, Coll Agr Sci, Sao Paulo - Brazil

^[3] Sao Paulo State Univ UNESP, Ctr Trop Roots & Starches CERAT, BR-18610307 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: AGRONOMY JOURNAL; v. 106, n. 3, p. 809-820, MAY-JUN 2014.
• Citações Web of Science: 7

Resumo

In the no-till (NT) system, N availability may change depending on the number of years since NT was adopted. Thus, an experiment was conducted in a Typic Rhodudalf in Botucatu, Sao Paulo, Brazil, to evaluate the influence of the age (timing of establishment) of the NT system and N fertilizer management on the nutrition, yield, and N-use effciency (NUE) of common bean (Phaseolus vulgaris L.) crop. Treatments included four management systems (a newly implemented NT system, an established NT system, a newly implemented NT with an application of 60 kg ha(-1) N at pre-sowing, and an established NT with an application of 60 kg ha(-1) N at pre-sowing) and four N rates (0, 30, 60, and 120 kg ha(-1)) sidedressed at the V-4 stage of common bean. The age of the NT system did not affect common bean nutrition or its response to sidedressed N application, but the established NT system, regardless of N application at pre-sowing, provided a slightly greater common bean yield. In both the newly implemented and established NT systems, N fertilization increased the aboveground biomass, seed yield, and protein concentration in seeds. Even with the application of N at pre-sowing, seed yield increased in response to sidedressed N fertilization in all the management systems. The NUE by common bean was greater in treatments receiving N at pre-sowing. A higher seed yield and NUE of common bean grown in the NT systems after grass was achieved with the combined application of N at pre-sowing and sidedressing. (AU)

• Processo FAPESP: 08/01961-6 - Nitrogênio na semeadura e em cobertura para o feijoeiro em sistema plantio direto em fase de implantação e consolidado
• Beneficiário: Adelson Antonio Guidolin Perez
• Modalidade de apoio: Bolsas no Brasil - Mestrado