%0 Journal Article
%T Effect of nitrogen over corn-grass association in the renovation of pastures at piedmont of the Llanos Orientales of Colombia
%A Ligarreto Moreno Gustavo Adolfo
%A Rinc¨®n C. ¨¢lvaro
%J Agronom¨ªa Colombiana
%D 2011
%I Universidad Nacional de Colombia
%X In the piedmont of the Eastern Plains of Colombia, was established the association of corn with the grasses B. decumbens, Mulato and Toledo, to renovate degraded pasture. The effect of the N was evaluated with 100 and 200 kg ha-1 applied to the corn to the 15 and 35 days after the sowing (das). The available N in the soil in nitrate form remained N in 42 and 43 kg ha-1 to the 15 and 35 das respectively, coinciding with the fertilization of N applied to the corn, but to the 60 days it reducing to 11.9 kg N ha-1. The available N in ammonium form was of 82, 84 and 72 kg ha-1 to
%U http://www.revistas.unal.edu.co/index.php/agrocol/article/view/19869