Data/hora: 21/06/2024 15:38:22

Biblioteca(s): 	Embrapa Pesca e Aquicultura.	
Data corrente: 	19/01/2024	
Data da última atualização: 	20/01/2024	
Autoria: 	SOUZA, V. S.; SANTOS, D. de C.; FERREIRA, J. G.; SOUZA, S. O. de; GONÇALO, T. P.; SOUSA, J. V. A. de; CRUVINEL, A. G.; VILELA, L.; PAIM, T. do P.; ALMEIDA, R. E. M. de; CANISARES, L. P.; CHERUBIN, M. R.	
Afiliação: 	VICTORIA SANTOS SOUZA, IFGOIANO, Rio Verde-GO; DARLIANE DE CASTRO SANTOS, IFGOIANO, Rio Verde-GO; JAQUELINE GOMES FERREIRA, IFGOIANO, Rio Verde-GO; STEFANY OLIVEIRA DE SOUZA, IFGOIANO, Rio Verde-GO; TULIO PORTO GONÇALO; JOAO VITOR ALVES DE SOUSA; ALINE GUIMARAES CRUVINEL; LOURIVAL VILELA, CPAC; TIAGO DO PRADO PAIM, IFGOIANO, Rio Verde-GO; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; LUCAS PECCI CANISARES, ESALQ; MAURICIO ROBERTO CHERUBIN, ESALQ.	
Título: 	Cover crop diversity for sustainable agriculture: insights from the Cerrado biome.	
Ano de publicação: 	2024	
Fonte/Imprenta: 	Soil Use and Management, v. 40, e13014, 2024.	
ISSN: 	1475-2743	
DOI: 	https://doi.org/10.1111/sum.13014	
Idioma: 	Inglês	
Conteúdo: 	Brazil is one of the largest soybean producer of the world and the Cerrado biome has played a pivotal role in this expansion. Because of the economic and agronomic challenges associated with the maize production as a second summer crop in this region, cover crops are gaining popularity as a strategy to diversify the agricultural system while enhancing soil health. This study assessed the benefits of single species of cover crops and a mix of cover crop species in between harvest seasons to the soybean grain yield and nematode suppression. The study was carried out for 3 years in two locations within the Cerrado biome. We evaluated six cover crop treatments after soybean cultivation: (1) Mix of cover crops (Pennisetum glaucum, Crotalaria spectabilis and Urochloa ruziziensis), (2) P. glaucum (Pearl millet), (3) C. spectabilis, (4) U. ruziziensis (Congo grass) (5) Urochloa brizantha cv. Marandu (Marandu palisadegrass) and (6) U. brizantha BRS Paiaguás (Paiaguás palisadegrass). Pennisetum glaucum and U. brizantha cv. Marandu produced highest amounts of biomass on a 3-year average. In one site, P. glaucum produced more biomass than other cover crops by 210%. Tropical grasses (U. ruziziensis, Marandu and Paiaguás), along with the cover crop mixture, exhibited intermediate biomass levels in the site with higher P. glaucum biomass production and did not differ from P. glaucum in the other site. Cover crops varied nutrient uptake depending on the species. Decomposition rates varied among cover crops as expected, with C. spectabilis decomposing rapidly and releasing substantial amounts nutrients, particularly nitrogen. In contrast, the cover crop mixture had a slower decomposition. The choice of cover crop significantly influenced soybean population and yield, with some variability across years and locations. The cover crop mixture consistently supported higher soybean populations and yields, highlighting its potential for enhancing soybean production, nutrient cycling and nematode suppression. It effectively reduced nematode abundance in soybean roots, highlighting its role in nematode management. Our findings emphasize the robustness and versatility of cover crop mixtures in mitigating weather variability across years and sites. They consistently performed well in terms of biomass production, nutrient uptake, soybean yields and nematode control. This study highlights the vital role of cover crops in the Cerrado ecosystem, enhancing soil health, crop productivity and environmental sustainability. The choice of cover crop species and mixtures offers a valuable tool for farmers seeking resilient and sustainable agricultural practices amid changing environmental conditions.	
Palavras-Chave: 	Soil health.	
Thesagro: 	Biomassa; Cerrado; Planta de Cobertura; Resíduo Agrícola; Rotação de Cultura; Soja; Solo.	
Thesaurus Nal: 	Cover crops; Crop residues; Crop rotation; Soybeans.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
Registro original: 	Embrapa Pesca e Aquicultura (CNPASA)	
Exemplares: 	CNPASA - (1318-1) - UPC - AP - DD - 2024 -  - 2024 - DIS