Data/hora: 12/06/2024 02:51:40

Provedor de dados: | 96
País: | Brazil
Título: | Characterization of tillers in deferred Piata palisade grass with different initial heights and nitrogen levels
Autores: | Sousa,Braulio Maia de Lana; Vilela,Hélio Henrique; Santos,Manoel Eduardo Rozalino; Rodrigues,Carlindo Santos; Santos,Andreza Luzia; Nascimento Júnior,Domicio do; Assis,Camila Zimmer de; Rocha,Gabriel de Oliveira.
Data: | 2012-07-01
Ano: | 2012
Palavras-chave: | Brachiaria brizantha; Seasonal production; Tillering; Tiller population density.
Resumo: | This experiment was conducted to estimate the effects of nitrogen fertilization associated with the initial height of the Piata palisade grass on the number and structural characteristics of individual tillers after the deferment period. An area with Brachiaria brizantha cv. Piata measuring approximately 288 m² was used. Combinations of levels of nitrogen fertilization (0, 75 and 150 kg/ha of nitrogen) and initial heights of the sward (low - 20 cm, medium - 30 cm and high - 40 cm) were evaluated. The experimental design was of completely randomized blocks in subdivided plots with three replications. The number of vegetative tillers, the stem length of the vegetative, reproductive and dead tillers, and the number of dead leaves of the reproductive and the dead tillers linearly increased with the elevation in the nitrogen level. The deferred Piata palisade grass with low initial height showed lower number of dead basal tillers, shorter length of stems and leaf blades in reproductive tillers and lower number of live and dead leaves in vegetative tillers in relation to the one managed with height considered medium and high. Nitrogen fertilization, in association with low initial height, provides the optimization of forage of Piata palisade grass in deferment conditions.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000700009
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982012000700009
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.41 n.7 2012
Fonte: | info:eu-repo/semantics/openAccess