Affiliation:
1. Universidade Federal de Santa Maria, Brazil
2. Universidade Federal do Rio Grande do Sul, Brazil
Abstract
ABSTRACT This study was carried out to evaluate the effect of nitrogen fertilization on tillering dynamics of Alexandergrass (Urochloa plantaginea (Link) Hitch) grazed by beef heifers in a rotational stocking grazing method. The experiment was conducted in a completely randomized design following a repeated measure arrangement, three levels of nitrogen (Zero, 150 and 300kg ha-1) and two area repetition. The classification of tillers into categories (basal and axillary) showed a greater number of basal tillers, due to their higher appearance rate, in the absence of nitrogen fertilization. Nitrogen fertilization promoted higher axillary tiller density. The use of nitrogen promotes the renewal of axillary tillers of Alexandergrass, without compromising the stability of the tiller population.
Reference20 articles.
1. Tiller dynamics of perennial ryegrass cultivars derived from different New Zealand acotype: effects of cultivar, season, nitrogen fertilizer and irrigation;BAHMANI I.;Aust. J. Agric. Res.,2003
2. Tillering dynamics of Tanzania guinea grass under nitrogen levels and plant densities;BRAZ T.G.S.;Acta Sci. Anim. Sci.,2012
3. Estabilidade da população de perfilhos de capim-marandu sob lotação contínua e adubação nitrogenada;CAMINHA F.O.;Pesqui. Agropecu. Bra.,2010
4. Demografia do perfilhamento e taxas de acúmulo de matéria seca em capim ‘Tifton 85’ sob pastejo;CARVALHO C.A.B.;Sci. Agric.,2000
5. Avaliação das características estruturais do capim-braquiária em pastagens adubadas com nitrogênio nas quatro estações do ano;FAGUNDES J.A.;Rev. Bras. Zootec.,2006
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献