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	Provedor de dados BABT (1) Rev. Bras. Ciênc. Solo (1) Autor Balota,Elcio Liborio (2) Chaves,Julio César Dias (2) Palavra-chave Green manure (2) Mulching (2) Microbial biomass (1) Mineralization potential (1) Nutrient cycling (1) Soil enzymes (1) Soil fertility (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2011 (1) 2010 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Enzymatic activity and mineralization of carbon and nitrogen in soil cultivated with coffee and green manures Rev. Bras. Ciênc. Solo Balota,Elcio Liborio; Chaves,Julio César Dias. There are great concerns about degradation of agricultural soils. It has been suggested that cultivating different plant species intercropped with coffee plants can increase microbial diversity and enhance soil sustainability. The objective of this study was to evaluate enzyme activity (urease, arylsulfatase and phosphatase) and alterations in C and N mineralization rates as related to different legume cover crops planted between rows of coffee plants. Soil samples were collected in a field experiment conducted for 10 years in a sandy soil in the North of Paraná State, Brazil. Samples were collected from the 0-10 cm layer, both from under the tree canopy and in-between rows in the following treatments: control, Leucaena leucocephala, Crotalaria... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil enzymes; Mineralization potential; Green manure; Mulching; Nutrient cycling. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500010 Microbial activity in soil cultivated with different summer legumes in coffee crop BABT Balota,Elcio Liborio; Chaves,Julio César Dias. A field experiment was conducted for ten years in a sandy soil in the north part of the Paraná State, Brazil. The soil samples were collected at 0-10 cm depth, both under the coffee canopy and in the inter row space between the coffee plants, in the following treatments: Control, Leucaena leucocephala, Crotalaria spectabilis, Crotalaria breviflora, Mucuna pruriens, Mucuna deeringiana, Arachis hypogaea and Vigna unguiculata. The legume crops influenced the microbial activity, both under the coffee canopy and in the inter row space. The cultivation of Leucaena leucocephala increased the microbial biomass C, N and P. Although L. leucocephala and Arachis hypogaea provided higher microbial biomass, the qCO2 decreased by up to 50% under the coffee canopy and by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Microbial biomass; Mulching; Green manure; Soil fertility. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132011000100005 Registros recuperados: 2 Primeira ... 1 ... Última

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