INFLUÊNCIA DAS CARACTERÍSTICAS FÍSICO-HÍDRICAS DE DOIS SOLOS DO CERRADO MATOGROSSENSE NAS VARIÁVEIS PRODUTIVAS DO CAPIM HUMIDÍCOLA

Abstract

The state of Mato Grosso soil events with different physical-hydric characteristics, which influence the availability of soil water and consequently in the production of forage species. The objective was to test the influence of physical-hydric characteristics on soil water storage and the relationship with the morphophysiological variables of Urochloa humidicola grass. For such, two field experiments were evaluated in pastures formed by U. humidicola grass. The experiments were installed in two locations in the south of Mato Grosso, with different edaphoclimatic characteristics. The experimental design used was in randomized blocks with twenty-four treatments and three replications. During the experimental period, the variables of grass and soil were measured. The U. humidicola grass response variables were subjected to analysis of variance by the F test at the 5% level and regression analysis. Descriptive statistics were used for soil physico-hydric variables. The morphophysiological variables of U. humidicola grass vary depending on the location, with water availability in the soil being the main determining factor. The experiment that showed the highest water storage in the soil during the experimental period obtained greater precision for most variables of U. humidicola grass in relation to ARM.