The nutritive regime for leached black soil in an apple orchard depending on fertilizers

Abstract This article presents the results of studying dynamics nutritive regime for leached black soil during vegetation period apple trees depending on dosage and application times compound fertilizers, as well combinations organic mineral fertilizers. We detected a positive influence fertilizers accumulation liable forms nitrogen, phosphorus, potassium in fruit orchard. The highest average content ammonia absorbed was observed section N180P180K180 – 40.6 mg/kg, which 10.4 mg/kg higher than unfertilized ref-erence section. nitrates reference 8.9 soil. N60P60K60 increased their by 2.3 (25.8%), N90P90K90 - 3.1 (34.8%), N120P120K120 4.8 (53.9%). at various rates had significant impact phosphorus 0-40 cm layer soil: its per 101.8 129,1 N150P150K150. exchangeable orchard maximum beginning minimum formation. Later on, harvesting stage but it lower original level. exchange-able N150P150K150 184 44 Out two sections treated with manure, Manure 20 t/ha+N30P70 (with NPK reaching up to 120 kg/ha) deemed more efficient. exceeded 41 mg/kg.