Sorghum-grass intercropping systems under varying planting densities in a semi-arid region: focusing on soil carbon and grain yield in the conservation systems

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dc.creatorRisely Ferraz de Almeida
dc.creatorCarlos Juliano Brant Albuquerque
dc.creatorReginaldo de Camargo
dc.creatorErnane Miranda Lemes
dc.creatorRenato Soares Faria
dc.creatorRegina Maria Quintão Lana
dc.date.accessioned2023-11-01T13:30:33Z
dc.date.accessioned2025-09-08T22:54:57Z
dc.date.available2023-11-01T13:30:33Z
dc.date.issued2022
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.3390/agriculture12111762
dc.identifier.issn2077-0472
dc.identifier.urihttps://hdl.handle.net/1843/60418
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofAgriculture
dc.rightsAcesso Aberto
dc.subjectSorgo
dc.subjectCapim-braquiaria
dc.subjectMatéria orgânica
dc.subjectPlantio direto
dc.titleSorghum-grass intercropping systems under varying planting densities in a semi-arid region: focusing on soil carbon and grain yield in the conservation systems
dc.typeArtigo de periódico
local.citation.epage14
local.citation.issue11
local.citation.spage1
local.citation.volume12
local.description.resumoA major challenge in sorghum intercropping systems is maintaining their yields compared to the yields of the solo crops, especially in arid and semi-arid regions. This study aimed to test the hypothesis that intercropping systems using sorghum (Sorghum bicolor (L.) Moench.) and Brachiaria sp. are viable means to increase sorghum production and soil carbon in the conservation systems. Field trials were conducted in the semi-arid region of Minas Gerais, Brazil, during two crop cycles of sorghum associated with different grasses (Andropogon gayanus—AG; Cenchrus ciliaris cv. Aridus—CCA; Cenchrus ciliaris cv. 131—CC; Brachiaria decumbents—BD; Brachiaria brizantha—BB; Brachiaria ruziziensis—BR; Panicum maximum—PM), using row spacings of 0.4 and 0.8 m. Panicles of sorghum (yield) and grass dry matter were collected to determine yields. Results showed that the addition of grasses in systems decreased the grain yield in all systems, except in the systems using sorghum with CCA in 0.4 m, AG in 0.8 m, or BR in 0.8 m. In the 0.4 m row spacing, the sorghum associations with CC, BB, or PM are greater alternatives to increase soil carbon. However, when the row spacing was increased, the sole sorghum was the best alternative to increase the carbon. In machine learning, sorghum systems with CCA and AG are better alternatives to increase the yields, while sorghum with CC, PM, BR, and BB increases the grass dry matter in soil.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/2077-0472/12/11/1762

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