FERTILIZATION AND SOD SEEDING OF WHITE CLOVER ON A NATURAL PASTURE

Abstract

The experimental work was carried out at the Estação Experimental da Faculdade de Agronomia, UFRGS, in Eldorado do Sul, Rio Grande do Sul, Brazil. The objective was to evaluate the effect of fertilizer treatments (with and without N, P and K) and lime leveis (0; 1,5 and 3,0 ton/ha) on a Plintossolo, on the yield and botanical composition of a nature pasture sodseeded with white clover (Trifolhan repens L.). The climate is Cfa, according to Kaeppen's classification. The experimental design was a split-plot arranged in randomized block with three replications. The fertilization on the first year was 22,5 kg N/ha, 180 kg P205/ha and 120 kg K 20/ha. On the second and third year the amounts were of 90 kg P 205/ha and 48kg K20/ha. On the fourth year were of 24 kg N/ha, 84 kg P205/ha e 63 kg K20/ha. Fertilization with N, P and K increased the forage dry matter yield and changed the botanical composition of the natural pasture. Such variables were also affected by the year .