Producción de trichoderma spp. Como bioinsumo para los cultivos de col (brassica oleracea var. Capitata) en el Barrio Barabón Chico, Cuenca-Ecuador

Abstract

This study aimed to undertake organic Agro-Inputs by producing Trichoderma spp. as a bio input for cabbage (Brassica oleracea var. capitata) crops in the Barabón Chico neighbourhood in Cuenca, Ecuador. A laboratory with three separate areas was built, adapting it to carry out the bio- input unit processes: cooking the substrate (65% rice; 35% water) at 90 degrees Celsius, inoculation with Trichoderma spp. and storage in glass jars at a constant temperature of 26 degrees Celsius, this process lasts for seven days, and then repetitions are made until the fourth branch is obtained; finally it was dried, packaged and stored as a final product, this product has a concentration of 2.2*107 colony-forming units per gram (UFC/g) and was delivered to the farmers in doses of 300 grams per week in 5 weeks, in addition, each participating farmer was trained, who divided them into two subplots their cabbage crops to evaluate the effect of applying only Trichoderma spp. as a bio-input and compare it to phytosanitary products. The results indicate that the subplots where the cabbage bio-input was applied are superior at a nutritional level, according to the percentage of humidity, ash, sugars and milligrams of ascorbic acid; however, the production, size and weight were lower compared to sprouts obtained with phytosanitary products. It was concluded that the climatic conditions were not the best, and the Plasmodiophora brassicae disease influenced the crop; the subplot where Trichoderma was applied harvested fewer and smaller cabbages but with a better nutritional level. It is recommended to continue using the bio-input, alternating it with the phytosanitary products until you do without them.