DESENVOLVIMENTO E NUTRIÇÃO DE MILHO EM SOLO DEGRADADO BIOFERTILIZADO COM FOSFATO NATURAL, ENXOFRE E Acidithiobacillus

Abstract

An experiment in greenhouse with maize culture was carried through to evaluate the performance of Acithiobacillus inoculated in biofertilizer, with natural fosfato and sulphur. The biofertilizer was used as phosphorus fertilization in one argisoil degraded. The plants had been fertilized with four concentration of the biofertilizer during 50 days in two successive cultive. The soil fertility was evaluated, after the cultive as well as nutrition and development of the plants. The increase in the concentration of P-soluble in soil induced for the fertilization with the biofertilizer occurred in the second cultive. The application of the biofertilizer did not promote acidification of the soil however it increased the sulphur concentration. The rate of application of the biofertilizer for supply of 160 kg of P ha-1 revealed as of better performance in the supply of phosphorus and development of the plant.