Applying topdressing method of Winter latter before filling

The present invention relates to a method of Winter dressing applied to the latter before filling, comprising the steps of: prior to planting of winter wheat (1), a rotary Shijia Ji Higo finishing plowing or land, the construction stretch of ridge, ridge built into permanent furrow to irrigate , manure spreaders used, the height of the permanent stretch of ridge 15-20cm, Qikuan between adjacent ridge furrow 2 to 5 m; (2) in Winter reviving - jointing once irrigation, irrigation in an amount of 40 -60m3; (3) stopping irrigation, irrigation water depth of surface to be reduced to 40-60mm, nitrogen applicator uniform irrigation water to the surface, top dressing, dressing 30 to 40 percent of nitrogen in the growth period by the amount of nitrogen in winter wheat. The present invention is by first irrigation, irrigation water depth of surface to be reduced further dressing embodiment of 40-60mm, adjust the irrigation, fertilizer manner, the amount of Nutrient leaching with irrigation water layer below the root, the root crop increases available nutrient layer, reduce contamination from groundwater irrigation produced, increased crop yields.