Efeito de diferentes corretivos de acidez: calcário líquido e calcário sólido

Abstract

This work has as its main objective is to verify the solid limestone and limestone soil correction fluid in depth. Also check the reaction of the liquid limestone in the soil, check the relationship of the calcítico limestone with the agricultural gypsum and observe the reaction of the plaster in the soil. Being that the setting is one of the most appropriate techniques to provide calcium and magnesium to the soil and also raise the pH and reduce the acidity, aluminum and iron, and consists in the release of other nutrients. To improve the efficiency of these calcareous plaster he has aim of agricultural neutralize the toxicity of Al and integrate the Ca to the ground, but he has the differential for acting in greater depths. In relation to the liquid limestone little study, but it has its advantages in practical aspects, being the best application and less use of manpower. The experiment was conducted in the municipality of Dois Vizinhos, This is an experiment in completely randomized design with four replications, plots of 5 x 5 m, being collected soil samples in 0-2.5; 2.5 -5; 5-10; cm deep. We evaluated the chemical soil attributes such as pH, Ca and Mg, and plant height after 90 days from planting. The limestone we can say that calcítico is a good source Here and a good concealer of acidity. Liquid limestone does not show changes in the levels of Ca, Mg and pH to 60 days after your application. Limestone calcítico + plaster can raise gradually the quantity of Mg in greater depths, providing what plants to develop in greater depths. The agricultural gypsum when used alone, does not provide significant improvements to the soil to 60 days after their application.