Potassium and phosphorus fertilization impacts on bermudagrass and limpograss herbage accumulation, nutritive value, and persistence

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorSilveira, Maria L.-
Autor(es): dc.creatorVendramini, Joao M. B.-
Autor(es): dc.creatorda Silva, Hiran M. S.-
Autor(es): dc.creatorBorges, Bernardo M. M. N.-
Autor(es): dc.creatorRibeirinho, Victor S.-
Autor(es): dc.creatorLacerda, Julian J. J.-
Autor(es): dc.creatorAzenha, Mariana V.-
Autor(es): dc.creatorViegas, Pedro R. A.-
Autor(es): dc.creatorAguiar, Andre D.-
Data de aceite: dc.date.accessioned2021-03-11T00:33:35Z-
Data de disponibilização: dc.date.available2021-03-11T00:33:35Z-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2018-12-11-
Data de envio: dc.date.issued2017-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.2135/cropsci2017.03.0147-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/170141-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/170141-
Descrição: dc.descriptionDespite scientific evidence suggesting that warm-season grasses can respond favorably to K and P fertilization, the increasing costs of fertilizers limit the extent to which these nutrients are used in pastures and hayfields. Two field studies evaluated ‘Jiggs’ bermudagrass [Cynondon dactylon (L.) Pers.] and ‘Floralta’ limpograss (Hemarthria altissima Stapf. and Hubbard) herbage accumulation (HA), nutritive value, and persistence to reduced fertilization strategies during 2012 to 2014. Treatments were allocated in a split-plot design with N (90 or 180 kg N ha−1, bermudagrass study) or harvest frequency (6 vs. 12 wk, limpograss study) as the main factors and P (0, 8.7, and 17.4 kg P ha−1) and K (0, 33, and 66 kg K ha−1) levels as subplots. Bermudagrass HA increased linearly (up to 377% in Year 3) as K level increased. Similarly, K fertilization increased limpograss HA from 8.4 to 11.6 Mg ha−1 in 2013 and from 5.8 to 15.7 Mg ha−1 in 2014 as K levels increased from 0 to 66 kg K ha−1; however, no effect was observed in 2012. Bermudagrass HA and ground cover decreased from 2012 to 2014 in all K treatments. Conversely, decreases in limpograss HA and ground cover over time were observed only in the control (no K) treatments. Bermudagrass and limpograss crude protein concentrations generally decreased with increased K level. No effects of N or P were observed. Continuous aboveground removal without proper K fertilization is detrimental to bermudagrass and limpograss production and persistence.-
Formato: dc.format2881-2890-
Idioma: dc.languageen-
Relação: dc.relationCrop Science-
Relação: dc.relation0,789-
Direitos: dc.rightsopenAccess-
Título: dc.titlePotassium and phosphorus fertilization impacts on bermudagrass and limpograss herbage accumulation, nutritive value, and persistence-
Tipo de arquivo: dc.typelivro digital-
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