Tillering, sward height and soil cover in elephant-grass pasture fertilized with nitrogen and irrigated

Authors

  • Cláudio Manoel Teixeira Vitor Empresa de Pesquisa Agropecuária de Minas Gerais, Centro Tecnológico no Norte de Minas, Fazenda Experimental do Gorutuba, Nova Porteirinha, MG
  • Carlos Eugênio Martins Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa de Gado de Leite, Juiz de Fora, MG
  • Antônio Carlos Coser Empresa Brasileira de Pesquisa Agropecuária, Centro Nacional de Pesquisa de Gado de Leite, Juiz de Fora, MG
  • Dilermando Miranda da Fonseca Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • Domício do Nascimento Júnior Universidade Federal de Viçosa, Departamento de Zootecnia, Viçosa, MG
  • José Ivo Ribeiro Júnior Universidade Federal de Viçosa, Departamento de Informática, Viçosa, MG

Keywords:

sprinkler irrigation, wet season, dry season, seasonal growth, Pennisetum purpureum

Abstract

The research was conducted in field conditions, in order to evaluate the effects of four nitrogen doses (100; 300; 500 and 700kg ha-1 of N) and six water sheet (0; 20%; 40%; 80%; 100% and 120% of evapotranspiration) over the population density of basal tillers, sward height and percentage of soil covered by elephant grass plants. The nitrogen doses were the plots and the water sheet constituted the subplots, according to the complete randomized blocks experiment with four replicates. The results indicated nitrogen fertilization has effect on density of basal tillers and sward height in all evaluated periods, except for the density of basal tillers during rainy period. Nitrogen fertilization did not influence the soil covered by elephant grass in none of the evaluated periods. The water sheet applied had effect on density of basal tillers, sward height and soil covered by elephant grass in all evaluated periods, except for soil covered during the rainy period. Dose of 700kg ha-1 of N and the water sheet applied of 120% of evapotranspiration were the ones that provided larger density of basal tillers and larger sward height in all the evaluated periods.

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Published

2008-02-18

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Tillering, sward height and soil cover in elephant-grass pasture fertilized with nitrogen and irrigated. (2008). Bulletin of Animal Husbandry, 65(2), 147-154. http://bia.iz.sp.gov.br/index.php/bia/article/view/1134

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