Effect of Vinasse on Soil Acidity

Abstract

The effects of microbiological activity on soil acidity components in soils previously treated with vinasse are determined. These soil acidity components were interpreted through the measurement of pH, exchangeable aluminium and titratable acidity. The results showed that there was no rise in soil pH when microbiological activity was absent, through periodic application of methyl bromide. It was concluded that organic matter oxidation is responsible for the rise in soil pH and microbiological activity is responsible for this oxidation. Thus, microbiological activity is necessary to raise the soil pH.