Feijão-vagem semeado sobre cobertura viva perene de gramínea e leguminosa e em solo mobilizado, com adubação orgânica

Abstract

Resumo -O objetivo deste trabalho foi avaliar o desempenho agronômico do feijão-vagem, cv. Alessa, cultivado sobre cobertura viva perene de grama-batatais (Paspalum notatum Flüggé) e de amendoim forrageiro (Arachis pintoi Krapov & Gregory), e em solo convencionalmente preparado, como controle. Diferentes doses de cama de aviário (0, 7, 14 e 28 t ha -1 ) foram fornecidas, parceladamente, em um Planossolo, em Seropédica, RJ, de agosto a outubro de 2002. O delineamento adotado foi o de blocos ao acaso, dispostos em parcelas subdivididas, com quatro repetições, utilizando-se modelo quadrático para análise dos resultados. A produtividade de vagens foi semelhante nos três sistemas de cultivo sem efeito competitivo das espécies de cobertura viva, sobre as quais foi realizada a semeadura direta da cultura, com enxada. A produtividade máxima estimada pelo modelo de regressão foi 20,3 t ha -1 de vagens. Esse valor foi obtido com a dose de 26 t ha -1 de cama de aviário, aplicada de forma parcelada. A semeadura direta de feijão-vagem sobre cobertura viva perene de grama-batatais e de amendoim forrageiro é viável, com resultados preliminares positivos.Termos para indexação: Phaseolus vulgaris, Paspalum notatum, Arachis pintoi, cultivo orgânico, adubação orgânica. Snap bean planted on living perennial mulch of grass and legume and in tilled soil with organic amendmentAbstract -The objective of this work was to evaluate the agronomic performance of snap bean planted on living perennial mulch of bahia grass (Paspalum notatum Flüggé) and of peanut (Arachis pintoi Krapov & Gregory) and in a conventional tillage soil as a control. Different parcels and doses of poultry bed manure (0, 7, 14 and 28 t ha -1 ) were used in a Planosol soil from August to October of 2002. The statistical design was a split plot, in completely randomized blocks, with four replications, using a quadratic model to analyze the results. Snap bean yield was similar for the tillage system treatments without competition effect from the living mulch, in which direct seeding of the main crop was performed with a hoe. The greatest snap bean yield estimated by regression model was 20.3 t ha -1 , corresponding to the dose of 26 t ha -1 of manure applied in parcels. The direct seeding of snap bean on living perennial mulch of bahia grass and perennial peanut is agronomicaly viable, with positive preliminary results on snap bean yield.

The Effects of Gliricidia-Derived Biochar on Sequential Maize and Bean Farming

“…The climatic conditions in the region, according to Köppen's classification, are tropical Aw; hot and wet with rain in the summer [40] and drought during tropical winter. Following the FAO (1998) taxonomy [41], the soils in the region were classified as planosols [39,42], and are often degraded with low fertility. Figure 1.…”

Contribution of components of production on snap bean yield

“…However, few commercial cultivars of snap bean have been available by private companies. Thus, the indication of suitable snap bean cultivars to farmers depends on public breeding programs, which are scarce in Brazil (Oliveira et al 2006, Mariguele et al 2008, Vilela et al 2009, Cabral et al 2011.…”

Effects of cattle manure over the content, extraction and exportation of nutrients in snap bean

“…Oliveira et al (2006), working with the same snap bean cultivar in tillage system and different cover crops, evaluated the fresh mass of pods and did not observed any significant differences either.…”