DEPENDENCE OF SPRING WHEAT YIELD ON HYDROTHERMIC CONDITIONS IN THE SARATOV REGION

Using long-term stationary field studies on the phases of development of spring wheat, a prognostic equation for calculating the yield of a given crop depending on the duration of the growing season with a monthly lead time was derived. Taking into account the hydrothermic factors of the Saratov region, the prognostic equation of the multiple function of the yield of spring wheat from the amount of precipitation for April-May, the average air temperature in May, the amount of precipitation in June, the amount of precipitation in July, and the duration of the growing season was calculated.