GROWTH OF MINT PLANTS UNDER DOSES OF VERMICOMPOUND IN TWO TYPES OF SOILS

Abstract

It was aimed at in this work to verify the production of the biomass of mint plants submitted to different vermicompound doses under two types of soils. The experiment was accomplished at the laboratory of Botany of Escola Superior de Agricultura de Mossoró, RN, Brazil. The doses of the vermicompound of 0, 5, 10, 15, 20, 25 and 30% were studied in a Tropert and in a Psamment soil. The experimental design used was a completely randomized in factorial an outline 7 x 2, seven vermicompound doses and two soil types, with six replications. Evaluations for fresh and dry biomass of the whole plants, the root length and the height of the plants were made. The application of increasing doses of the vermicompound, in both soils, did not influence the height of mint plants. The vermicompound dose of 16% promoted an increase in the amount of fresh and dry biomass in both soils. Higher mint root length was obtained in the vermicompound dose of 30%.