HERBAGE PRODUCTION AND TILLERING IN TANZANIA GRASS PASTURES FERTILIZED WITH NITROGEN DOSES

Abstract

The present grazing experiment was carried in Nossa Senhora Aparecida Farm, located in the municipal district of Astorga, PR, Brazil. The experiment objectified to evaluate the effects of different amounts of applied nitrogen to the soil of Tanzania grass. The appraised doses of nitrogen were 100 kg.ha-1, 200 kg ha-1, 300 kg.ha-1 and 400 kg ha-1 of N, and the completely randomized design was used with two replications. The experimental period was of November 10, 2001 to April 15, 2002. The used animals were young bulls Nelore. The put-and-take technique was used and the grazing method was of the continuous stocking. The height of the pasture was maintained about of 60 cm during the experimental period. The statistical analyses revealed lineal increase of the individual mass of the tillers with the amount of tested N. The density tiller population presented behavior quadratic relationship the doses of N. It is  had as hypothesis that as if they elevate the levels of applied nitrogen, there will be an increase in the production of dry matter total and, due to the increase of the tillers density and production of heavier tillers.