Effect of fertilization on Solanum tuberosum L. productivity in Ukrainian Polissya
Abstract
T.V. Klymenko, S.V. Fedorchuk, O.I. Trembitska, S.V. Zhuravel, V.G.Radko, I.Y. Derebon, M.M. Lisovyy*, O.O. Didur and Y.V. Lykholat
We selected an effective variant in the potato fertilizer application system, which could provide the predicted yield in areas with an optimal cultivation balance in heat and moisture. We used a fertilization that contained organic, mineral variants and their compositions (control, green manures with straw, N50P40K70, 25 t ha-1 of manure with N25P20K35, 50 t ha-1 of manure per crop rotation area, 37.5 t ha-1t of manure with N12.5P10K17.5). We registered that the most effective was the application of 35.7 t ha-1 of manure with N12.5P10K17.5, which provides the highest yield of tubers (34.93 ± 0.77 t ha-1) compared to the control (20.43 ± 0.47 tha-1). We proved the positive effect of the same variant of the fertilizer system at almost all critical stages of potato development (stage of booting, budding, and flowering) by the estimation of height and weight of potato plants, moisture reserves in the soil under potatoes. The composition of green manures with straw increased the yield of potato by 15% comparing to the control towards 35.7 t ha-1 of manure with N12.5P10K17.5, where the increase of the yield was the largest and comprised 65.8% regards the control.