Nitrogen recovery efficiency for corn intercropped with palisade grass.
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100320 |
Resumo: | 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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Nitrogen recovery efficiency for corn intercropped with palisade grass.MilhoPlantio DiretoCerradoZea MaysNitrogênioNitrogenCornGrassesUrochloa ruziziensisNo-tillageIntercropping 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.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.ALMEIDA, R. E. M. deFAVARIN, J. L.OTTO, R.FRANCO, H.REIS, A. F. B.MOREIRA, L. A.TRIVELIN, P.2018-11-29T23:52:25Z2018-11-29T23:52:25Z2018-11-2920182018-12-04T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBragantia, v. 77, n. 4, p. 557-566, 2018.http://www.alice.cnptia.embrapa.br/alice/handle/doc/110032010.1590/1678-4499.2017242enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-11-29T23:52:31Zoai:www.alice.cnptia.embrapa.br:doc/1100320Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-11-29T23:52:31falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-11-29T23:52:31Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
title |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
spellingShingle |
Nitrogen recovery efficiency for corn intercropped with palisade grass. ALMEIDA, R. E. M. de Milho Plantio Direto Cerrado Zea Mays Nitrogênio Nitrogen Corn Grasses Urochloa ruziziensis No-tillage |
title_short |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
title_full |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
title_fullStr |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
title_full_unstemmed |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
title_sort |
Nitrogen recovery efficiency for corn intercropped with palisade grass. |
author |
ALMEIDA, R. E. M. de |
author_facet |
ALMEIDA, R. E. M. de FAVARIN, J. L. OTTO, R. FRANCO, H. REIS, A. F. B. MOREIRA, L. A. TRIVELIN, P. |
author_role |
author |
author2 |
FAVARIN, J. L. OTTO, R. FRANCO, H. REIS, A. F. B. MOREIRA, L. A. TRIVELIN, P. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
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. |
dc.contributor.author.fl_str_mv |
ALMEIDA, R. E. M. de FAVARIN, J. L. OTTO, R. FRANCO, H. REIS, A. F. B. MOREIRA, L. A. TRIVELIN, P. |
dc.subject.por.fl_str_mv |
Milho Plantio Direto Cerrado Zea Mays Nitrogênio Nitrogen Corn Grasses Urochloa ruziziensis No-tillage |
topic |
Milho Plantio Direto Cerrado Zea Mays Nitrogênio Nitrogen Corn Grasses Urochloa ruziziensis No-tillage |
description |
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. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-29T23:52:25Z 2018-11-29T23:52:25Z 2018-11-29 2018 2018-12-04T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Bragantia, v. 77, n. 4, p. 557-566, 2018. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100320 10.1590/1678-4499.2017242 |
identifier_str_mv |
Bragantia, v. 77, n. 4, p. 557-566, 2018. 10.1590/1678-4499.2017242 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100320 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503466189586432 |