Título:	Lasting effect of Urochloa brizantha on a common bean-wheat-maize rotation in a medium-term no-till system.
Autoria:	CRUSCIOL, C. A. C. FERREIRA, J. H. S. MOMESSO, L. PORTUGAL, J. R. CAMPOS, M. de VOLF, M. R. BORGHI, E. SORATTO, R. P. CALONEGO, J. C.
Afiliação:	CARLOS ALEXANDRE COSTA CRUSCIOL, Universidade Estadual Paulista; JOÃO HENRIQUE SANTOS FERREIRA, Universidade Estadual Paulista; LETUSA MOMESSO, Universidade Estadual Paulista; JOSÉ ROBERTO PORTUGAL, Universidade Estadual Paulista; MURILO DE CAMPOS, Universidade Estadual Paulista; MARCELO RAPHAEL VOLF, Universidade do Oeste Paulista; EMERSON BORGHI, CNPMS; ROGÉRIO PERES SORATTO, Universidade Estadual Paulista; JULIANO CARLOS CALONEGO, Universidade Estadual Paulista.
Ano de publicação:	2023
Referência:	Frontiers in Sustainable Food Systems, v. 7, 940996, 2023.
Conteúdo:	Grass intercropping under no-till is an option to increase crop residues on the soil surface and crop diversity. Urochloa spp. is frequently selected for intercropping to improve land use and agricultural production because of its high residue production, slow residue decomposition, as well as its vigorous, abundant, and deep root system. However, the effects of intercropping Urochloa and maize, especially the effects of Urochloa residues, on subsequent crops in rotation have not been established. To address this knowledge gap, a field experiment was carried out over 5 years (from 2014 to 2018) comprising 2 years of maize monocropping or intercropping and 3 years of crop rotation (common bean-wheat-common bean-wheat-maize). We evaluated the medium-term effects of monocropped maize or maize intercropped with Urochloa brizantha on soil fertility and the development, yields, and grain nutrient accumulation of subsequent common bean, wheat, and maize crops. The cultivation of U. brizantha in the intercropping system improved soil fertility over at least 4 years, with increases in soil pH; soil organic matter (SOM); phosphorus (P); exchangeable potassium (K), calcium (Ca), and magnesium (Mg); sulfur (S?SO42?); cation exchange capacity (CEC); and base saturation (BS) at all soil depths. The benefits of U. brizantha extended to root dry matter and distribution; 70?77% of the total roots were concentrated within a soil depth of 0.0?0.2?m. The intercropping system improved the root dry matter mass, yield components, and grain yields of subsequent common bean, wheat, and maize crops in all cultivation years. These findings indicate that intercropping maize and U. brizantha provides medium-term benefits for subsequent common bean, wheat, and maize crops, and improves nutrient cycling to increase soil P; exchangeable K, Ca, and Mg; S?SO42?; and organic matter content.
Thesagro:	Capim Gramínea Plantio Direto Sistema Radicular
Palavras-chave:	Agricultura tropical
Digital Object Identifier:	https://doi.org/10.3389/fsufs.2023.940996
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)