Bioles are liquid biofertilizers rich in micronutrients,phytohormones, and beneficial microorganisms thatimprove crop yield, but the specific conditions of thefermentation process are unknown. The objective of thisresearch was to evaluate bioles produced with differentinputs based on a C/N ratio (10, 21, and 30), of organicand inorganic origin, with and without agitation, in termsof their nutritional composition, microbial load, andeffectiveness on potato (Solanum tuberosum L.) cv. Canchan.Twelve treatments were installed, and physicochemical andmicrobiological analyses were performed. In a greenhouse,the bioles were compared with foliar chemical fertilization(20-20-20 NPK) and a control; the fresh weight of foliageand tubers, and the number of tubers, were measured. Theresults indicated that the composition of the bioles depends on the inputs used, and that an acidic pH reduces the pres...

This study evaluated potato (Solanum tuberosum L.) productionin the Central Highlands of Peru through theapplication of five types of fermented solid composts,compared with conventional treatments and a control.The study was conducted in Huancayo at 3300 m abovesea level, using composts made from cattle and llamamanure, barley straw, ash, urea, and, in one case, cellu-lolytic bacteria. The composts were applied in two doses (5 and 10MT ha⁻¹), and agronomic variables such as fresh weight of total,marketable, non-marketable, and damaged tubers were evaluated.In addition, an economic analysis was performed using the partialbudget method. The results indicated that composts 1, 2, and 5 presentedthe best agricultural and economic yields. The 10 MT ha⁻¹dose showed greater efficacy in terms of total and marketable yield.Economically, all composts outperformed chemical fertilizer at the 5M...