High-yield, high-efficiency and healthy cultivation method for winter wheat

The invention belongs to the technical field of wheat cultivation, and discloses a winter wheat high-yield, high-efficiency and healthy cultivation method which comprises the steps of late sowing at a proper period, wide sowing, proper close planting, proper nitrogen reduction, optimized irrigation and late sowing resistant variety selection. Compared with a traditional farmer habitual cultivation method, the high-yield, high-efficiency and healthy winter wheat cultivation method with high yield, high-efficiency nutrient absorption and utilization and high disease and pest resistance with late sowing as a core is constructed through the cultivation measures of delaying the sowing date, improving the sowing mode, increasing the planting density, reducing the nitrogen fertilizer consumption, reducing the irrigation amount and the like; the lodging resistance and high and stable yield performance of a wheat population can be remarkably improved, the water and nitrogen utilization efficiency of winter wheat is ef