eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2015-08-15 12 2 1223 1231 2463 article Mengdibayeva Gulnaz Zhetkergenkyzy 1 Orazbaev Serik Auelbekovich 1 Salakshinova Bakty Maikanovna 1 Mukhamadiyev Nurzhan Serikkanuly 2 Kazakh National Agrarian University, Kazakhstan, 050010, Almaty, Abai avenue, 8 Kazakh scientific–research institute for plant protection and quarantine”, LLP, Republic of Kazakhstan, 050070, Almaty city, Nauryzbayski region, Rakhat, st. Kazybek bi, 1 Under conditions of the south–east of Kazakhstan, in the Almaty region we have conducted the studies for three years, these studies are aimed at determining yield, fodder value and impact of legume crops – blue alfalfa of the Kapchagai 80 variety, hungarian sainfoin of the Almaty 2 variety, Eastern galega of the Gornoaltaisk 87 variety and yellow melilot of the Alsheevsky varuety – on soil fertility. Field experiments were carried out by sowing legume crops in 2012 and 2013 on the irrigated plot. We studied the effect of scarification and inoculation of grass seeds before sowing and the effect of phosphorus fertilizers in the doses of 120 and 180 kg/ha of the active ingredient. We note that the tested crops had a high yield of green mass and hay with high fodder value, they also enrich soil fertility, leaving a large mass in the form of crop residues and roots that are rich in nitrogenous elements. https://www.biotech-asia.org/vol12no2/yield-fodder-value-and-biologization-of-soil-fertility-increase-with-legume-crops-in-the-south-east-of-kazakhstan/ soil fertility; fodder crops; scarification; inoculation; economic worthiness of seeds; fodder value; feed units; nodule bacteria; atmospheric nitrogen