Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099704
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dc.contributor.authorSILVA FILHO, J. L. da
dc.contributor.authorBORIN, A. L. D. C.
dc.contributor.authorFERREIRA, A. C. de B.
dc.date.accessioned2018-11-24T23:34:37Z-
dc.date.available2018-11-24T23:34:37Z-
dc.date.created2018-11-20
dc.date.issued2018
dc.identifier.citationRevista Caatinga, v. 31, n. 2, p. 264-270, abr./jun. 2018.
dc.identifier.issn0100-316X
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1099704-
dc.descriptionNo-tillage cotton systems require soil coverage with cover crop residue for a longer time due to the late cycle of cotton. However, decomposition rates may vary between cover crops, and the adjustment of models to describe it is critical to no-tillage cotton management. Two non-linear regression models, exponential (EM) and Michaelis-Menten (MM), were adjusted to dry matter decomposition of cover crops in a cotton no-tillage system, in Brazil. Three field trials were performed in 2012 for the cover crops Urochloa ruziziensis (brachiaria), Pennisetum glaucum (pearl millet), and Cajanus cajan (pigeon pea). Samples of cover crop were collected at 20, 50, 70, 110, 140, and 170 days after sowing upland cotton to measure dry matter decomposition. MM showed better adjustment than EM for all cover crops. The estimations of half-life parameters were different between the cover crops, suggesting that each cover crop has its own rate of decomposition. For pearl millet, brachiaria, and pigeon pea, the half-life estimation by exponential model was over the MM in 9, 12, and 12 days.
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleDry matter decomposition of cover crops in no-tillage cotton system.
dc.typeArtigo de periódico
dc.date.updated2018-11-24T23:34:37Zpt_BR
dc.subject.thesagroAlgodão
dc.subject.thesagroGossypium Hirsutum
dc.subject.thesagroPlantio Direto
dc.subject.thesagroBrachiaria
dc.subject.thesagroGuandu
dc.subject.thesagroCajanus Cajan
dc.subject.nalthesaurusCotton
dc.subject.nalthesaurusNo-tillage
dc.subject.nalthesaurusUrochloa ruziziensis
dc.subject.nalthesaurusPigeon peas
riaa.ainfo.id1099704
riaa.ainfo.lastupdate2018-11-20
dc.contributor.institutionJOAO LUIS DA SILVA FILHO, CNPA; ANA LUIZA DIAS COELHO BORIN, CNPA; ALEXANDRE CUNHA DE B FERREIRA, CNPA.
Appears in Collections:Artigo em periódico indexado (CNPA)

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