Decomposition and nutrient release from grass residue in tropical conditions

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dc.creatorGbison Ferreirade Almeida
dc.creatorMaria Nilfa de Almeida Neta
dc.creatorLuiz Arnaldo Fernandes
dc.creatorRegynaldo Arruda Sampaio
dc.creatorGustavo Leal Teixeira
dc.creatorRodinei Facco Pegoraro
dc.date.accessioned2023-11-28T15:52:14Z
dc.date.accessioned2025-09-08T23:41:56Z
dc.date.available2023-11-28T15:52:14Z
dc.date.issued2022-06-18
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.identifier.doihttps://doi.org/10.1080/00103624.2022.2089680
dc.identifier.issn1532-2416
dc.identifier.urihttps://hdl.handle.net/1843/61449
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofCommunications in Soil Science and Plant Analysis
dc.rightsAcesso Restrito
dc.subjectGramínea
dc.subjectSorgo
dc.subjectMilheto
dc.subjectCobertura dos solos
dc.subjectSolos - Erosão
dc.subjectResíduos vegetais
dc.subject.otherMineralization rate
dc.subject.otherSorghum bicolor
dc.subject.otherPennisetum glaucum
dc.subject.otherAvena sp
dc.titleDecomposition and nutrient release from grass residue in tropical conditions
dc.typeArtigo de periódico
local.citation.epage2777
local.citation.issue20
local.citation.spage2766
local.citation.volume53
local.description.resumoThe use of grasses as ground cover in tropical climate guarantees soil protection against erosion processes, however, its capacity for nutrients mineralization is poorly understood. In this sense, the aim of the study was to evaluate the decomposition of vegetable residues from grasses and the mineralization of macronutrients in tropical conditions. The study was conducted in a randomized block design with four replications, in a 4 × 9 factorial scheme with four cultural residues: sorghum, millet, black oats, and fallow; and nine evaluation times: 0, 14, 28, 42, 56, 70, 84, 98, and 112 days after setting up the study (DAA), in the field. Vegetable residues were disposed on the soil surface for remaining dry matter (RDM), half-life (t1/2) and mineralization rates. Lower decomposition rates were observed in sorghum and millet residues, with RDMs of 40% and 31% when compared to oats and fallow (17% RDM). Thus, the waste mineralization rates decreased in the following order: fallow = oats > millet > sorghum. The mineralization of macronutrients was considered high and decreased in the following order: K > P > N > C > Mg > S > Ca, corresponding to 96, 88, 88, 80, 76, and 74%. The fallow, millet, oat, and sorghum residues released 84, 17, 225, and 17 kg t−1 of N, P, K, and S, with different mineralization rates. The largest fraction of these nutrients was mineralized in the first 30 DAA, what indicates its potential use in agriculture.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://www.tandfonline.com/doi/full/10.1080/00103624.2022.2089680

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