Corn intercropped with tropical perennial grasses as affected by sidedress nitrogen application rates

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorSão Paulo Agency of Agribusiness Technology (APTA)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUSDA – Agricultural Research Service-
Autor(es): dc.contributorInstituto Agronômico de Campinas (IAC)-
Autor(es): dc.creatorMateus, G. P.-
Autor(es): dc.creatorCrusciol, C. A.C. [UNESP]-
Autor(es): dc.creatorPariz, C. M. [UNESP]-
Autor(es): dc.creatorCosta, N. R. [UNESP]-
Autor(es): dc.creatorBorghi, E. [UNESP]-
Autor(es): dc.creatorCosta, C. [UNESP]-
Autor(es): dc.creatorMartello, J. M. [UNESP]-
Autor(es): dc.creatorCastilhos, A. M. [UNESP]-
Autor(es): dc.creatorFranzluebbers, A. J.-
Autor(es): dc.creatorCantarella, H.-
Data de aceite: dc.date.accessioned2022-02-22T00:28:17Z-
Data de disponibilização: dc.date.available2022-02-22T00:28:17Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s10705-019-10040-1-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199769-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199769-
Descrição: dc.descriptionIn tropical regions, one of the primary difficulties in the sustainability of no-till systems is the maintenance of soil cover throughout the year. Intercropping corn (Zea mays L.) with tropical perennial grasses is an innovative approach to overcome this difficulty. However, the use of sidedress nitrogen (N) fertilization in this intercropping system remains incompletely studied. The effects of using sidedress N application rates (0, 50, 100 and 200 kg ha−1 N) on monocropped corn or corn intercropped with palisadegrass [Urochloa brizantha (Hochst. ex A. Rich.) R. Webster ‘Marandu’] or guineagrass [Megathyrsus maximum (Jacq.) R. Webster ‘Mombaça’] with respect to leaf nutrient concentration, agronomic characteristics, revenue and land use efficiency were investigated over three growing seasons in the Brazilian Cerrado region on a clay soil, kaolinitic, thermic Typic Haplorthox. In general, the intercropping systems of corn with palisade or guineagrass did not cause reductions in the leaf nutrient concentration, agronomic characteristics, kernels attributes, shoot dry matter and corn yield compared to that observed in the monocropped system. High sidedress N application rates promoted higher concentrations of nutrients in leaves (primarily N and P), corn yield, forage production and crude protein concentration in the off-season. Corn monocropped or intercropped with palisadegrass and guineagrass using 113, 156 and 187 kg ha−1 N resulted in the highest corn yields (9.2, 8.8 and 9.7 Mg ha−1, respectively). In addition, using these N application rates, corn intercropped with palisadegrass and guineagrass and subsequent meat production estimated on pastures resulted in the highest net profits (US$ 1196 and 1093 ha−1, respectively), whereas monocropped corn without N addition resulted in the lowest net profits (US$ 304 ha−1). Thus, forage produced during the off-season can be used for animal grazing or fodder during the dry season, increasing revenue. Corn intercropped with palisade grass with the addition of 200 kg ha−1 N resulted in a higher land equivalent ratio and relative N yield (1.21 and 123%, respectively). In summary, sidedress N fertilization in intercropped systems can increase crop and forage yields and revenue, improving land-use efficiency in tropical agriculture.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo Agency of Agribusiness Technology (APTA)-
Descrição: dc.descriptionDepartment of Crop Science College of Agricultural Science São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Animal Nutrition and Breeding School of Veterinary Medicine and Animal Science UNESP-
Descrição: dc.descriptionCollege of Agricultural Science UNESP-
Descrição: dc.descriptionCorn and Sorghum Research Center Brazilian Agricultural Research Corporation (EMBRAPA)-
Descrição: dc.descriptionUSDA – Agricultural Research Service, 3218 Williams Hall, NCSU Campus, Box 7619-
Descrição: dc.descriptionSoils and Environmental Resources Center Instituto Agronômico de Campinas (IAC)-
Descrição: dc.descriptionDepartment of Crop Science College of Agricultural Science São Paulo State University (UNESP)-
Descrição: dc.descriptionDepartment of Animal Nutrition and Breeding School of Veterinary Medicine and Animal Science UNESP-
Descrição: dc.descriptionCollege of Agricultural Science UNESP-
Descrição: dc.descriptionFAPESP: 2003/01968-7-
Descrição: dc.descriptionFAPESP: 2003/09914-3-
Formato: dc.format223-244-
Idioma: dc.languageen-
Relação: dc.relationNutrient Cycling in Agroecosystems-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectIntercropping crops-
Palavras-chave: dc.subjectMegathyrsus maximum-
Palavras-chave: dc.subjectNo-tillage system-
Palavras-chave: dc.subjectSustainable tropical agriculture-
Palavras-chave: dc.subjectUrochloa brizantha-
Palavras-chave: dc.subjectZea mays L-
Título: dc.titleCorn intercropped with tropical perennial grasses as affected by sidedress nitrogen application rates-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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