Dry matter yield and nutritional value of Marandu grass under nitrogen fertilization and irrigation in cerrado in São Paulo


Autoria(s): Dupas, Elisângela; Buzetti, Salatiér; Sarto, André Luis; Hernandez, Fernando Braz Tangerino; Bergamaschine, Antonio Fernando
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

27/05/2014

27/05/2014

01/12/2010

Resumo

The aim of this study was to evaluate dry matter yield and nutritional value of palisade grass (Brachiaria brizantha cv. Marandu) using nitrogen doses and sprinkler irrigation in two periods of the year, aiming at reducing seasonality of forage production. It was used a randomized block design in a split-plot scheme, with five doses of nitrogen (0, 50, 100, 150, and 200 kg/ha/cut), and the sub-plots were defined by the seasons of the year (wet and dry season), with and without irrigation. During the wet season, in the plots with and without irrigation, doses of 175 and 161 kg/ha/cut promoted the highest dry matter yields. During the dry season, 171 kg ha -1N with irrigation resulted in the highest dry matter yield. During the same season, there was no response to N fertilization in the lack of irrigation. Average contents of CP were 10% with and without irrigation. Contents of neutral detergent fiber decreased with nitrogen doses, while acid detergent fiber was not affected by fertilization. Plots under irrigation reached the maximal acid detergent fiber content at N dose of 60 kg ha -1. Irrigation promotes increase of 15% increase in dry matter yield and it increases contents of neutral detergent fiber. © 2010 Sociedade Brasileira de Zootecnia.

Formato

2598-2603

Identificador

http://dx.doi.org/10.1590/S1516-35982010001200006

Revista Brasileira de Zootecnia, v. 39, n. 12, p. 2598-2603, 2010.

1516-3598

1806-9290

http://hdl.handle.net/11449/72088

10.1590/S1516-35982010001200006

S1516-35982010001200006

WOS:000286614400006

2-s2.0-80052642811

2-s2.0-80052642811.pdf

Idioma(s)

eng

Relação

Revista Brasileira de Zootecnia

Direitos

openAccess

Palavras-Chave #Brachiaria brizantha #Nitrogen #Pasture
Tipo

info:eu-repo/semantics/article