Correlação entre a produtividade do feijoeiro no sistema de produção orgânica e atributos do solo
Carregando...
Data
2013
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
This study aimed to identify a set of soil attributes, chemical (CA), physical (PA), and biological (BA),
correlated to common bean grain yield in order to establish the most adequate soil conditions to cultivate
this legume under organic production system. Data from two experiments installed in November 2003 with
cultivar Pérola was used, one under no-tillage and the another in conventional tillage, in Santo Antônio de
Goiás, GO, in an Oxisol, in a randomized block design, with four replications. The treatments consisted of
cover crops sunn hemp, pigeon pea, velvet bean, sorghum, and fallow. Samples were taken from soil layer
of 0 - 0.10 m in 2007 for determination of CA, PA, and BA. Grain yield showed positive linear correlation
with the percentage of aggregates with a diameter greater than 2 mm (AGR), mean weighted diameter
of aggregates, microbial biomass carbon (MBC) and microbial quotient, and negative one with the basal
respiration, metabolic quotient and soil copper content. Based on multiple regression analysis, AGR, MBC
and soil organic matter were the soil attributes that together better explained grain yield.
Descrição
Palavras-chave
Phaseolus vulgaris L., Matéria orgânica, Semeadura direta, Carbono da biomassa microbiana, Agregação do solo, Phaseolus vulgaris L., No-tillage, Soil organic matter, Soil aggregation, Microbial biomass carbon
Citação
STONE, Luís F.; FERREIRA, Enderson P. de B.; DIDONET, Agostinho D.; HEINEMANN, Alexandre B.; OLIVEIRA, Jaison P. de. Correlação entre a produtividade do feijoeiro no sistema de produção orgânica e atributos do solo. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 17, n. 1, p. 19-25, 2013.