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Registro Completo |
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Biblioteca(s): |
Embrapa Cocais. |
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Data corrente: |
06/11/2020 |
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Data da última atualização: |
06/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SILVA, E. C. da; MURAOKA, T.; BASTOS, A. V. S.; FRANZINI, V. I.; SILVA, A. da; BUZETTI, S.; SAKADEVAN, K.; SOARES, F. A. L.; TEIXEIRA, M. B.; TRIVELIN, P. C. O.; ARAÚJO, L. C. de. |
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Afiliação: |
EDSON CABRAL DA SILVA, Instituto Federal Goiano; TAKASHI MURAOKA, USP; ALEFE VIANA SOUZA BASTOS, Instituto Federal Goiano; VINICIUS IDE FRANZINI, CPACP; ALINNE DA SILVA, USP; SALATIÉR BUZETTI, FEIS/UNESP; KARUPPAN SAKADEVAN, International Atomic Energy Agency; FREDERICO ANTONIO LOUREIRO SOARES, Instituto Federal Goiano; MARCONI BATISTA TEIXEIRA, Instituto Federal Goiano; PAULO CÉSAR OCHEUZE TRIVELIN, USP; LEANDRO COELHO DE ARAÚJO, FEIS/UNESP. |
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Título: |
Nitrogen recovery from fertilizers and cover crops by maize crop under no-tillage system. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v.14, n.5, p. 766-774, 2020. |
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Páginas: |
9 p. |
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DOI: |
10.21475/ajcs.20.14.05.p2127 |
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Idioma: |
Inglês |
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Conteúdo: |
Crop rotation associated with the use of cover crops promotes the introduction of crop residues to the soil, with direct and indirect effects on theavailability of plant nutrients, especially nitrogen (N). The objectivesof this study wereto estimate the N utilization from15N-ureaand cover crop residues (labelled with 15N)of maizecropsgrown in succession,andevaluate the effectsof the isolated and combined use of cover crops and urea on maize plant height, yield components,andgrain yield, grownunderano-tillage system. Field researchwas conductedin anOxisol (Rhodic Haplustox), Cerrado (Savannah) phase. The experimental design was a randomized block with 20 treatments and four replications in a 5x4 factorial scheme. The treatments were four cover cropsspecies: sunnhemp (Crotalaria juncea L.), pigeon pea (Cajanus cajan(L.) Millsp), green velvetbean (Mucuna prurens),and millet (Pennisetum glaucumL.) + spontaneous vegetation (fallow in the off-season),combined with four N rates: 0, 30, 90,and 150 kg ha-1, applied at the sowing and topdressingstages. The results showed that legume covercropsprovided maize grain yieldsequivalent tothe applicationof 80-108 kg ha-1N as urea. TheureaN utilizationby the maize was at an averageof43.5% of the appliedamount.The results indicatethat cover crops, particularly legume cover crops,are an important source of N to non-legume cereals.Legumes used as cover crops can replace nitrogen fertilizers of more than 80 kg ha, which is both environmentally and economically viable for corn production. MenosCrop rotation associated with the use of cover crops promotes the introduction of crop residues to the soil, with direct and indirect effects on theavailability of plant nutrients, especially nitrogen (N). The objectivesof this study wereto estimate the N utilization from15N-ureaand cover crop residues (labelled with 15N)of maizecropsgrown in succession,andevaluate the effectsof the isolated and combined use of cover crops and urea on maize plant height, yield components,andgrain yield, grownunderano-tillage system. Field researchwas conductedin anOxisol (Rhodic Haplustox), Cerrado (Savannah) phase. The experimental design was a randomized block with 20 treatments and four replications in a 5x4 factorial scheme. The treatments were four cover cropsspecies: sunnhemp (Crotalaria juncea L.), pigeon pea (Cajanus cajan(L.) Millsp), green velvetbean (Mucuna prurens),and millet (Pennisetum glaucumL.) + spontaneous vegetation (fallow in the off-season),combined with four N rates: 0, 30, 90,and 150 kg ha-1, applied at the sowing and topdressingstages. The results showed that legume covercropsprovided maize grain yieldsequivalent tothe applicationof 80-108 kg ha-1N as urea. TheureaN utilizationby the maize was at an averageof43.5% of the appliedamount.The results indicatethat cover crops, particularly legume cover crops,are an important source of N to non-legume cereals.Legumes used as cover crops can replace nitrogen fertilizers of more than 80 kg ha, which is both environmentally an... Mostrar Tudo |
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Palavras-Chave: |
Culturas de cobertura; Maize crop; Rotação de culturas; Savannah. |
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Thesagro: |
Milho. |
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Thesaurus Nal: |
Green manures; Isotope dilution technique; Oxisols; Urea. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217532/1/AJCS-Article-2020-1.pdf
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Marc: |
LEADER 02596naa a2200373 a 4500
001 2126338
005 2020-11-06
008 2020 bl uuuu u00u1 u #d
024 7 $a10.21475/ajcs.20.14.05.p2127$2DOI
100 1 $aSILVA, E. C. da
245 $aNitrogen recovery from fertilizers and cover crops by maize crop under no-tillage system.$h[electronic resource]
260 $c2020
300 $a9 p.
520 $aCrop rotation associated with the use of cover crops promotes the introduction of crop residues to the soil, with direct and indirect effects on theavailability of plant nutrients, especially nitrogen (N). The objectivesof this study wereto estimate the N utilization from15N-ureaand cover crop residues (labelled with 15N)of maizecropsgrown in succession,andevaluate the effectsof the isolated and combined use of cover crops and urea on maize plant height, yield components,andgrain yield, grownunderano-tillage system. Field researchwas conductedin anOxisol (Rhodic Haplustox), Cerrado (Savannah) phase. The experimental design was a randomized block with 20 treatments and four replications in a 5x4 factorial scheme. The treatments were four cover cropsspecies: sunnhemp (Crotalaria juncea L.), pigeon pea (Cajanus cajan(L.) Millsp), green velvetbean (Mucuna prurens),and millet (Pennisetum glaucumL.) + spontaneous vegetation (fallow in the off-season),combined with four N rates: 0, 30, 90,and 150 kg ha-1, applied at the sowing and topdressingstages. The results showed that legume covercropsprovided maize grain yieldsequivalent tothe applicationof 80-108 kg ha-1N as urea. TheureaN utilizationby the maize was at an averageof43.5% of the appliedamount.The results indicatethat cover crops, particularly legume cover crops,are an important source of N to non-legume cereals.Legumes used as cover crops can replace nitrogen fertilizers of more than 80 kg ha, which is both environmentally and economically viable for corn production.
650 $aGreen manures
650 $aIsotope dilution technique
650 $aOxisols
650 $aUrea
650 $aMilho
653 $aCulturas de cobertura
653 $aMaize crop
653 $aRotação de culturas
653 $aSavannah
700 1 $aMURAOKA, T.
700 1 $aBASTOS, A. V. S.
700 1 $aFRANZINI, V. I.
700 1 $aSILVA, A. da
700 1 $aBUZETTI, S.
700 1 $aSAKADEVAN, K.
700 1 $aSOARES, F. A. L.
700 1 $aTEIXEIRA, M. B.
700 1 $aTRIVELIN, P. C. O.
700 1 $aARAÚJO, L. C. de
773 $tAustralian Journal of Crop Science$gv.14, n.5, p. 766-774, 2020.
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Embrapa Cocais (CPACP) |
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