WINTER BEAN PRODUCTIVITY UNDER UROCHLOA STRAW FERTILIZED WITH NITROGEN
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Data
2016-01-01
Autores
Costa, Nidia Raquel [UNESP]
Andreotti, Marcelo [UNESP]
Mascarenhas Lopes, Keny Samejima [UNESP]
Almeida Yokobatake, Kazuo Leonardo
Da Rocha Lima, Cesar Gustavo [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Fed Rural Semi-arido-ufersa
Resumo
An experiment was conducted during the years 2009 and 2010 to evaluate the effects of Urochloa forage straw and nitrogen fertilization on soil properties, nutritional foliar content, index of foliar chlorophyll (IFC) values, production components, and grains yields of winter bean (Phaseolus vulgaris 'Perola') in the Cerrado lowlands region of Brazil. The treatments consisted of planting bean crops under straw of Urochloa brizantha 'Xaraes' and Urochloa ruziziensis, fertilized with urea-sourced N (0, 50, 100, 150, and 200 kg N ha(-1)). The experimental design was randomized blocks with four replications, and a factorial scheme of 2 x 5. The greater yield of U. brizantha dry matter in the two years of evaluation increased bean leaf nutrient levels. The nutritional increase with increasing N application rates showed that the straw produced by the forages had a positive effect on bean nutrition. The grain yield was satisfactory but was not affected by the forage species nor by changes in the N application rates. The Urochloa straw increased the soil organic matter (SOM), Ca, and Mg content in both evaluated years, affected the decomposition and mineralization of organic residues, and ensured the proper development of the bean plants.
Descrição
Palavras-chave
Nitrogen fertilization, Urochloa spp., Phaseolus vulgaris, No-tillage system, Soil fertility
Como citar
Revista Caatinga. Mossoro: Univ Fed Rural Semi-arido-ufersa, v. 29, n. 1, p. 133-142, 2016.