PRODUÇÃO DE TIFTON – 85 ( CYNODON SPP.) EM FUNÇÃO DO USO DE GESSO E DOSES DE NITROGÊNIO

The objective of this work was to evaluate the development of tifton-85 forage in function of Ndoses with and without gypsum applied as a source of sulfur. The experimental design was arandomized complete block design in a 2 x 4 factorial: four doses of N (0, 60, 120 and 180 kg ha-1N) as urea by two treatments (with and without gypsum), with four replicates. One hundred andthirty days after planting, were measured plant height, dry matter mass and N use efficiency(EUN). Without gypsum applied, the N use efficiency and dry matter mass of plants increased in120 kg N ha-¹. The gypsum application improves the development of Tifton grass, increasing drymass production in relation to the amount of N applying up to 180 kg N ha-1and possibly higherdoses.