Data/hora: 07/06/2024 11:39:31

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 19/02/2019
Data da última atualização: | 02/12/2019
Autoria: | PEREIRA FILHO, A.; TEIXEIRA FILHO, J.; SALVIANO, A. M.; YURI, J. E.; GIONGO, V.
Afiliação: | ANTONIO PEREIRA FILHO; JOSÉ TEIXEIRA FILHO; ALESSANDRA MONTEIRO SALVIANO, CPATSA; JONY EISHI YURI, CPATSA; VANDERLISE GIONGO, CPATSA.
Título: | Nutrient cycling in multifunctional agroecosystems with the use of plant cocktail as cover crop and green manure in the semi-arid.
Ano de publicação: | 2019
Fonte/Imprenta: | African Journal of Agricultural Research, v. 14, n. 5, p. 241-251, 2019.
DOI: | 10.5897/AJAR2018.13600
Idioma: | Inglês
Conteúdo: | Plant cocktails used as cover crop present a significant multifunctional resource compared to monoculture, which may increase functional diversity within crop rotation and is particularly effective for designing mixtures with characteristics that increase the multifunctionality and sustainability of the agroecosystem. The objective was to evaluate sustainable agroecosystems models that improve the efficiency of nutrient cycling for crops. The treatments were arranged in four blocks in a split-plot design with two soil management (tillage and no-till) systems and three cropping systems (2 plant cocktails [PCs] and 1 natural vegetation [NV]). C/N ratio, lignin content, dry biomass (DB) production and decomposition, nutrients accumulation and mineralization by PCs and NV were evaluated. Decomposition and release of nutrients were monitored by the litterbag-method. PCs had a DB production twice higher than NV, essential for the adoption of no-tillage systems. The order of nutrient release was K> N> Ca> P> Mg. PCs as cover crops and green manure, with or without predominance of legumes and use of a no-tillage system, could be a technological strategy in agroecosystems for nutrients cycling in semi-arid regions.
Palavras-Chave: | Agroecossistema; Macronutrientes; Mistura de plantas; Taxa de mineralização.
Thesagro: | Adubação Verde; Agricultura Sustentável; Decomposição; Manejo do Solo; Monocultura; Solo.
Thesaurus Nal: | Green manures; Soil management; Sustainable agriculture.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (58047-1) - UPC - AP - DD -  -  -  - DIS