AFFECT OF OIL POLLUTED GRAY FOREST SOIL ON THE SPRING RAPE YIELD

The purpose of the research is increasing yield spring rape in Tatarstan pre-Kama zone. Soil pollution affects food safety both by reducing plant performance and class. Oil petrochemicals are common con-tamination sources environment. work devoted to assessment impact oil soil on rapeseed. study was conducted experimental field Department «Agro-chemistry Science» Kazan State Agrarian University, located zone Tatarstan. site presented gray forest medium loamy soil, which predominant difference for this area unpolluted characterized a low content humus weak acidic medium, high con-centration phosphorus potassium active forms. purposely contaminated with commercial crude spreading over surface at rate 10, 20 40 l/m2. These levels pollution, as shown previ-ous studies, were estimated, respectively, low, high. A close positive correlation established between rapeseed limitation contamination (R2=0.763÷0.940). Mechanical treatment, liming, application mineral fertilizers Baikal EM-1 biologics tested recultivation. oilseeds closely correlated level single least 15 years. Obtaining maximum oil-polluted provided comprehensive loosening, liming full ferti-lizer.