Influence of the methods of mail soil treatment on productivity of crop rotation with castor-winter wheat

Experimental material obtained in stationary trial of VNIIMK on studying of systems of primary plowing in forth rotation of crop rotation with castor - winter wheat was analyzed. The results showed that the highest castor yield (1.23-1.29 t ha-1) and oil yield (0.58-0.66 t ha-1), as well as winter wheat yield (4.89-4.82 t ha-1) and productivity of crop rotation with these crops (7.03-7.25 t ha-1) is formed at intensive and at different depths treatment systems of primary plowing.