Crop yield and production efficiency of winter wheat after sunflower in the conditions of the Western Ciscaucasia

We studied influence of the different agricultural technologies on yield of winter wheat variety Antonina and conducted an economic evaluation of the obtained data. A research was carried out at the experimental station of the Kuban State Agrarian University in the conditions of multi-factorial longterm monitoring. Winter wheat was sowed after sunflower. Soil of the experimental plot is leached light-clay strong black humus with an average thickness of the humus horizon 150 cm (due to our data). We founded out the changes in cultivation technology elements (various fertilizers, soil treatment, means of protection) effected winter wheat yield increase up to 50% in comparison to control. According to the calculation of economic efficiency it is reasonable to use the variant 222 at tillage where the maximum net profit efficiency ratio and low prime cost of the product are noticed.