Introduction of Coastcross-1 under phosphorus doses and densities of seedlings in area with legumes

Abstract

The aim of this study was to evaluate strategies for establishing consortium pastures with the predominance of the legume species Arachis pintoi using doses of phosphorus and density of seedlings Coastcross-1. The experimental design was a randomized block with four replications in a factorial 4x4, using four doses of phosphorus (50; 80; 110 and 140kg ha-1) and four densities of seedlings (3.1, 4.2, 6.3 and 12.5 seedlings/m²). The effects of seedlings densities and phosphorus doses were analyzed through regression testing at 10% probability. The variables evaluated were: production of total forage mass, botanical and morphology composition. There was significant effect of phosphorus doses in leaf/stem ratio of grass; of the densities of seedlings in the production of total forage mass, in botanical and morphological composition of forage and harvest dates for the production of forage mass and botanical composition. It might be inferred that the use of higher densities of seedlings Coastcross-1 benefited the establishment of grass in areas which there is the predominance of legumes. However, it has not achieved sufficient population to be considered ideal for the recovery of the grass pasture.