BIOLOGICAL SIGNIFICANCE OF ALFALFA IN THE DEVELOPMENT OF ORGANIC FARMING IN SOUTH-EASTERN KAZAKHSTAN

The ecological situation and modern agro-landscape improvement, soil fertility maintenance uplifting, formation of ecologically safe agro-ecosystems with germplasm diversity in crop rotation, cultures-soil conditioners are the focus study. Nitrogen is a vital element required larger quantities by plants; however, lack it has become problem organic farming. presented study suggests ways farming can boost up nitrogen return to address deficiency. research shows data on harvest three-year standing alfalfa indicators efficiency annual crops’ use rotation findings exhibited that accumulates residues 13–17 t ha-1 three years standing, containing more than 280–300, 63–80, 66–120 kg NPK ha-1, respectively. In different rotations, accumulated 13 20 two- periods, More 11 green mass 65 70 nitrogen, 25 phosphorous, 55 60 potassium welded form. By sowing good time, mixed oats, leave 12–15 matter, 190–200, 35–40, 230–250 A pea-oat mixture about 12.0 resulted 132, 46, 102 latest serve as basis for development new approaches related system Southeast Kazakhstan.