COMPARATIVE EFFICIENCY OF ORGANIC AND MINERAL FERTILIZERS ON SON-PODZOLIC SANDY SOIL

Abstract

It was found that under cultivation of corn for the use of green material the application of equivalent doses of organic fertilizer produced at the output of the biogas plant, was similar to the effect of organic fertilizers used for biogas production (poultry manure and cattle fluid manure) and mineral fertilizers introduced into the dose-aligned nitrogen on the sod-podzolic sandy soil. Yield of corn green mass was at the level of 550-562 kg/ha in these options at an average of two years. Specific removal of nutrients from one ton of corn green mass (75 % moisture) averaged: N - 3.2 kg, P₂O₅ - 1.5 kg, K₂O - 4.8 kg, CaO - 0.4 kg, MgO - 0.4 kg.