Soil quality and soybean productivity in crop-livestock integrated system in no-tillage
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Data
2018-11-01
Autores
Santos Laroca, Jackeline Vieira dos
Andrade de Souza, Juliana Mendes
Pires, Gabriela Castro
Coutinho Pires, Gleidson Jose
Pacheco, Leandro Pereira
Silva, Francine Damian da
Wruck, Flavio Jesus
Carbone Carneiro, Marco Aurelio
Siiva, Laercio Santos [UNESP]
Souza, Edicarlos Damacena de
Título da Revista
ISSN da Revista
Título de Volume
Editor
Empresa Brasil Pesq Agropec
Resumo
The objective of this work was to evaluate the quality of the soil and its relation with soybean (Glycine max) yield in an integrated crop-livestock system (ICLS), with intercropping between grasses and legumes in the pasture phase. The experiment was carried out in the state of Mato Grosso, Brazil, on a dystrophic Oxisol, in which grasses (Megathyrsus maximus 'BRS Tamani' and Urochloa brizantha 'BRS Piata'), intercropped with cowpea (Vigna unguiculata 'BRS Tumucumaque') and pigeon pea (Cajanus cajan 'BRS Mandarim'), were cultivated after soybean harvest. A randomized complete block design was used, with three replicates, in a split-plot arrangement, in which grasses were considered as plots, and legumes as subplots. Legume intercrops provided increases of C and total N stocks. The intercrops caused the increase of C and N of the microbial biomass, whereas the single cultures contributed to stress in the soil microbiota. The activity of the urease enzyme was sensitive to management changes in the short term, but acid phosphatase and beta-glucosidase were poorly sensitive indicators. Soil quality is high with intercropping between grasses and legumes, with positive effects on soybean grain yield.
Descrição
Palavras-chave
Cerrado, cowpea, microbial biomass, pigeon pea, soil organic matter
Como citar
Pesquisa Agropecuaria Brasileira. Brasilia Df: Empresa Brasil Pesq Agropec, v. 53, n. 11, p. 1248-1258, 2018.