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| Registros recuperados : 1 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
29/11/2018 |
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Data da última atualização: |
04/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ALMEIDA, R. E. M. de; FAVARIN, J. L.; OTTO, R.; FRANCO, H.; REIS, A. F. B.; MOREIRA, L. A.; TRIVELIN, P. |
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Afiliação: |
RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; JOSE LAERCIO FAVARIN, ESALQ; RAFEL OTTO, ESALQ; HENRIQUE FRANCO; ANDRÉ FROES BORJA REIS, ESALQ; LILIAN ANGELICA MOREIRA, ESALQ; PAULO TRIVELIN, CENA. |
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Título: |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Bragantia, v. 77, n. 4, p. 557-566, 2018. |
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DOI: |
10.1590/1678-4499.2017242 |
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Idioma: |
Inglês |
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Conteúdo: |
Intercropping corn and palisade grass is a technique to increase straw production, soil C contents, nutrient cycling and crop yield. However, concerns arise from nitrogen (N) uptake by the intercropping crop causing reduction in the yield of the corn. Our objective was to evaluate N recovery efficiency (NRE), and the N dynamics in the soil-plant system in corn intercropped with palisade grass. A field trial was carried out in Bahia, Brazil, evaluating two cropping systems: corn (monoculture) and corn intercropped with palisade grass sowed between rows on the same day as the corn crop, with four replicates in a completely randomized block design. Nitrogen (150 kg∙ha?1of 15N-urea) was applied at sowing to determine NRE, which means the amounts of N-fertilizer uptake in corn and palisade grass, the amounts of N-fertilizer in soil and the 15N-fertilizer balance. Neither the NRE (63.3% in monoculture and 57.2% in intercropping) nor corn grain yield (9,800 kg∙ha?1 in monoculture and 9,671 kg∙ha?1 in intercropping) was affected by intercropping, which accumulated only 2.1 kg∙ha?1 of N-fertilizer or 1.4% N rate. In addition, palisade grass yielded 2,265 kg∙ha?1 of dry matter. The balance indicated that 82.4% of N-fertilizer was recovered in the monoculture and 86.9% in the intercropping. Intercropping palisade grass does not affect grain yield or N corn nutrition and has the potential to increase straw production contributing to maintenance of no-till. |
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Thesagro: |
Cerrado; Milho; Nitrogênio; Plantio Direto; Zea Mays. |
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Thesaurus NAL: |
Corn; Grasses; Nitrogen; No-tillage; Urochloa ruziziensis. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187284/1/CNPASA-2018-bragantia.pdf
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Marc: |
LEADER 02349naa a2200325 a 4500
001 2100320
005 2018-12-04
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-4499.2017242$2DOI
100 1 $aALMEIDA, R. E. M. de
245 $aNitrogen recovery efficiency for corn intercropped with palisade grass.$h[electronic resource]
260 $c2018
520 $aIntercropping corn and palisade grass is a technique to increase straw production, soil C contents, nutrient cycling and crop yield. However, concerns arise from nitrogen (N) uptake by the intercropping crop causing reduction in the yield of the corn. Our objective was to evaluate N recovery efficiency (NRE), and the N dynamics in the soil-plant system in corn intercropped with palisade grass. A field trial was carried out in Bahia, Brazil, evaluating two cropping systems: corn (monoculture) and corn intercropped with palisade grass sowed between rows on the same day as the corn crop, with four replicates in a completely randomized block design. Nitrogen (150 kg∙ha?1of 15N-urea) was applied at sowing to determine NRE, which means the amounts of N-fertilizer uptake in corn and palisade grass, the amounts of N-fertilizer in soil and the 15N-fertilizer balance. Neither the NRE (63.3% in monoculture and 57.2% in intercropping) nor corn grain yield (9,800 kg∙ha?1 in monoculture and 9,671 kg∙ha?1 in intercropping) was affected by intercropping, which accumulated only 2.1 kg∙ha?1 of N-fertilizer or 1.4% N rate. In addition, palisade grass yielded 2,265 kg∙ha?1 of dry matter. The balance indicated that 82.4% of N-fertilizer was recovered in the monoculture and 86.9% in the intercropping. Intercropping palisade grass does not affect grain yield or N corn nutrition and has the potential to increase straw production contributing to maintenance of no-till.
650 $aCorn
650 $aGrasses
650 $aNitrogen
650 $aNo-tillage
650 $aUrochloa ruziziensis
650 $aCerrado
650 $aMilho
650 $aNitrogênio
650 $aPlantio Direto
650 $aZea Mays
700 1 $aFAVARIN, J. L.
700 1 $aOTTO, R.
700 1 $aFRANCO, H.
700 1 $aREIS, A. F. B.
700 1 $aMOREIRA, L. A.
700 1 $aTRIVELIN, P.
773 $tBragantia$gv. 77, n. 4, p. 557-566, 2018.
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Embrapa Pesca e Aquicultura (CNPASA) |
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