SOLUBLE MICRONUTRIENTS IN VERMICOMPOST

Abstract

SUMMARY. The objective of this study was to determine the concentration of some essential micronutrients obtained and solubilized from vermicompost. The concentrations of the vermicompost (10, 15 y 20%) incubated in distilled water and three concentrations of potassium hydroxide ( 0, 0.5 y 1%) as an alkaline extractor were evaluated, in a completely randomized experimental design with factorial arrangement 3 2 and three replicates per treatment. Experimental units were pots with a volume of 2 L each. Each experimental unit was shaken every 24 h and aliquots of them were taken every 48 h. Analysis of Fe, Cu, Zn, Mn, and B were carried out from those aliquots taken. Besides, pH and CE values from the aliquots were taken and analyzed. An analysis of variance (ANOVA) means