EFFECTIVENESS OF FERTILIZER SYSTEMS FOR WINTER TRITICALE GROWING ON LUVISOL LOAMY SAND SOIL

Abstract

The influence of fertilizer systems on the yield and quality of winter triticale grown in grain-grass-raw crop rotation after red clover on Luvisol loamy sand soil characterized by different P and K contents (at the level of optimal parameters - Р₂О₅ 240-350 mg/kg and К₂О 220- 350 mg/kg) and lower (Р₂О₅ 110-170 mg/kg and К₂О 100-160 mg/kg) was discussed. It was found that at both soils maximal grain yields of winter triticale, 63,4 and 63,6 c/ha were obtained under application of N_80+40+30 + MicroStim-Copper_0.05 + chlormekvat-chloride at the background of Р₇₀К₁₅₀ and Р₄₀К₁₂₀ as well as aftereffect of 40 t/ha-1 FYM (4 th year). Grain response at the soil with optimal parameters of Р₂О₅ and К₂О was equal to 20,9 c ha-1, payback of 1 kg NРК - 6,7 kg of grain. Grain response at the soil with lower contents of Р₂О₅ and К₂О was equal to 23,7 c/ha payback of 1 kg NРК - 6,4 kg of grain. At the treatment without fungicides and insecticides application average (for 3 years) grain yield reduction achieved 8,9 c/ha.