DOSIS DE ZEOLITA Y FRACCIONES GRANULOMÉTRICAS PARA CULTIVOS DE PLÁTANO Y CAÑA DE AZÚCAR

The application of natural zeolita in the agriculture is a practice that has taken peak in the last twenty years, for what is necessary to carry out pursuit to the soil where it is applied. This work had as objective to evaluate the effect of different sizes of particles in gavels and lost by volatilization of ammonia and the zeolite doses in the banana cultivations, cane of sugar and chemical properties of the soil. During the years 2010-2012 behaved at home of glass experiments in which gavels of 1,6 kg of capacity like experimental unit were used and using a totally randomized design, five sizes of zeolite particle were evaluated (< 0,25 mm, 0,25-0,50; 0,50-1,00; 1,00-2,00 and 2,00-3,00) and lost by volatilization of ammonia, as well as zeolite dose in field of (0; 12,5; 25; 50 and 75 % blended with the fertilizers). Each treatment had four replicas and two banana varieties and cane of sugar were used. The considered soils were Alitic, Brown grizzly, Brown with carbonates and humic sialitics to be the most representative with agricultural vocation. The particle sizes between 1,00 and 3,00 mm obtained the best results when improving the chemical conditions of the floors. The biggest doses of zeolita application were able to increase the content of interchangeable bases in the soil well as the yield and the concentration to soil of nutritious of the cultivations.