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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
20/11/2018 |
Data da última atualização: |
20/11/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SILVA FILHO, J. L. da; BORIN, A. L. D. C.; FERREIRA, A. C. de B. |
Afiliação: |
JOAO LUIS DA SILVA FILHO, CNPA; ANA LUIZA DIAS COELHO BORIN, CNPA; ALEXANDRE CUNHA DE B FERREIRA, CNPA. |
Título: |
Dry matter decomposition of cover crops in no-tillage cotton system. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Revista Caatinga, v. 31, n. 2, p. 264-270, abr./jun. 2018. |
ISSN: |
0100-316X |
Idioma: |
Inglês |
Conteúdo: |
No-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. |
Thesagro: |
Algodão; Brachiaria; Cajanus Cajan; Gossypium Hirsutum; Guandu; Plantio Direto. |
Thesaurus Nal: |
Cotton; No-tillage; Pigeon peas; Urochloa ruziziensis. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/186451/1/Dry-matter-decomposition.pdf
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Marc: |
LEADER 01851naa a2200277 a 4500 001 2099704 005 2018-11-20 008 2018 bl uuuu u00u1 u #d 022 $a0100-316X 100 1 $aSILVA FILHO, J. L. da 245 $aDry matter decomposition of cover crops in no-tillage cotton system.$h[electronic resource] 260 $c2018 520 $aNo-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. 650 $aCotton 650 $aNo-tillage 650 $aPigeon peas 650 $aUrochloa ruziziensis 650 $aAlgodão 650 $aBrachiaria 650 $aCajanus Cajan 650 $aGossypium Hirsutum 650 $aGuandu 650 $aPlantio Direto 700 1 $aBORIN, A. L. D. C. 700 1 $aFERREIRA, A. C. de B. 773 $tRevista Caatinga$gv. 31, n. 2, p. 264-270, abr./jun. 2018.
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Embrapa Algodão (CNPA) |
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20. |  | FERREIRA, A. C. de B.; BORIN, A. L. D. C.; LAMAS, F. M.; BOGIANI, J. C. Soil organic matter after nine years under crop rotation, conventional, and no-till cotton production systems. IN: WORLD COTTON RESEARCH CONFERENCE, 6., 2016. Goiânia, Brazil. Proceedings... England, UK: Innovation in Textiles, 2016. p. 140-.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Algodão. |
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Registros recuperados : 138 | |
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