Response of bermudagrass to enhanced-efficiency fertilizers, application strategies and release under tropical conditions

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorRange Cattle Research and Education Center-
Autor(es): dc.creatorBorges, Bernardo Melo Montes Nogueira [UNESP]-
Autor(es): dc.creatorPeixoto, Fernanda Ribeiro [UNESP]-
Autor(es): dc.creatorBraga, Marilena de Melo [UNESP]-
Autor(es): dc.creatorBrunozzi, Barbara de Brito [UNESP]-
Autor(es): dc.creatorSilveira, Maria Lucia-
Autor(es): dc.creatorCoutinho, Edson Luiz Mendes [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:29:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:29:39Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.21475/ajcs.20.14.01.p1929-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/200169-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/200169-
Descrição: dc.descriptionNitrogen fertilization is an important input for crop yield; however, it can result in detrimental environmental effects due to low use efficiency of regular N sources. This study evaluated the effects of N fertilizers and application strategies (single vs. split application) on bermudagrass (Cynodon spp.) responses and release pattern and rate in controlled and field incubations. The bermudagrass study was arranged in a two-way factorial scheme of 6 N fertilizers, urea, Polymer Coated Urea (PCU), PCU-6 (6 months), PCU-4 (4 months), PCU-2 (2 months) and urea + urease inhibitor (U-NBPT) applied as a single (400 kg N ha-1 yr-1) or two split applications of 200 kg N ha-1 (400 kg N ha-1 yr-1). The controlled experiment was a two-way factorial of PCU-6, PCU-4, PCU-2 and 15, 45 and 90% water hold capacity (WHC), sampling period of 170 days, the field incubation used the same sources sampled up to 220 days. Enhanced-efficiency fertilizers (EEF) increased herbage accumulation (HA) by 1.3 Mg ha-1 compared to untreated urea, on average. Nitrogen use efficiency (NUE) was greater for EEFs (44%) than urea (36%). Results showed that increased soil moisture inferred positive responses in release pattern and a minimum of 45% WHC was necessary for optimum release. Fertilizers at field conditions resulted in an earlier release than expected, ~20 days.-
Descrição: dc.descriptionSão Paulo State University (Unesp) Campus Jaboticabal Department of Soil Science, Via de Acesso Prof. Paulo Donato Castellane s/n-
Descrição: dc.descriptionUniversity of Florida Range Cattle Research and Education Center-
Descrição: dc.descriptionSão Paulo State University (Unesp) Campus Jaboticabal Department of Soil Science, Via de Acesso Prof. Paulo Donato Castellane s/n-
Formato: dc.format108-115-
Idioma: dc.languageen-
Relação: dc.relationAustralian Journal of Crop Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectForage-
Palavras-chave: dc.subjectNitrogen-
Palavras-chave: dc.subjectPolymer-coated urea-
Palavras-chave: dc.subjectUrease inhibitor-
Palavras-chave: dc.subjectUse-efficiency-
Título: dc.titleResponse of bermudagrass to enhanced-efficiency fertilizers, application strategies and release under tropical conditions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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