INFLUENCE OF MINERAL FERTILIZERS ON PRODUCTIVITY AND QUALITY OF SUMMER TRITICALE DEPENDING ON DEGREE OF ACIDITY AND POTASSIUM SECURITY ON SOD-PODSOLIC LOAMY SAND SOILS

Abstract

In the article data on influence of mineral fertilizers on quality of grain summer triticale depending on degree of acidity and potassium security of soil are stated. The maximum productivity of summer triticale is received on soil with acidity рН_KCI 6,3-6,5 and application the dose of potash fertilizers of 120 kg/hectares (60,7 t/hectares) - at level of soil security of mobile potassium 200-250 mg/kg, and doses of 70 kg/hectares (61,2 t/hectares) -at level of soil security of mobile potassium 300-350 mg/kg. Change of soil acidity with рН_KCI 4,8-4,9 to рН_KCI 6,3-6,5 has led to increase in weight of 1000 grains, the maintenance and gathering of crude fiber. The application of 120 kg/hectares potassium against nitrogen-phosphoric fertilizers has ensured the greatest sum of critical and irreplaceable amino acids. The greatest sum of critical amino acids (7,46) is received at acidity of soil рН_KCI 6,3-6,5, and the greatest sum of irreplaceable amino acids (20,55) at acidity рН_KCI 5,4-5,6.