Accumulation of macronutrients and productivity of potato with foliar application of biofertilizer

The addition of organic compounds to fertilizers has shown positive effects on plant metabolism. This study aimed evaluate the macronutrient accumulation and productivity potato with use biofertilizer (BF) applied leaves. A 2×7 factorial plot a subdivided in time ten replications used two forms fertilization: chemical fertilizer conventional NPK (nitrogen, phosphorus potassium: control) plus biofertilizers (BF); evaluations were performed 31, 41, 51, 61, 71, 81 91 days after planting (DAP) using Jelly cultivar. BF increased maximum N, K, Ca Mg accumulations leaves, especially N period greatest occurring between 62 66 DAP. P, tubers accelerated from 71 At end cycle (e.g., DAP), increases nutrient K 30 64% higher for application, doubled S exhibited no differences evaluation periods. For following decreasing sequence was observed: K>N>Ca>Mg>S>P. tubers, obtained: K>N>P>Ca>Mg>S. caused greater caliber soluble solids contents cv. tubers.