Effect of sulfur-containing fertilizers on the chemical properties of soil and winter wheat yield

The researches were conducted at studying the effectiveness and development of practical methods of using fertilizers containing micronized sulfur (monoammonium phosphate (MAP): P2O5- 40%, N - 11%, S - 11%, Zn - 1%, sulfur particles size from 5 to 200 micron) under winter wheat in the conditions of South Kazakhstan. The yield of grain in the control variant (without fertilizers) was 14.3 q.ha(-1). When using sulfur-containing phosphorus fertilizer (N60P(2)60K30) (MAP + S) the addition to yield is significant, and amounted to 4.5 q.ha(-1) or 31.5%. The maximum yield addition was obtained in the variant when phosphorus fertilizers contained sulfur and zinc (N60P(3)60K30) - 5.5 q.ha(-1) (38.4%). According to the test results, the possibility of using Kazakhstani elemental sulfur by mixing with ammophos of the domestic company "KazFosfat" for wide application in agricultural was revealed.