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通过田间小区试验观察了大麦一生2次追肥对大麦抗倒性的影响，前期追肥在3叶期进行可以促使冬前分蘖足．次生根发生量大，麦苗素质好，减轻了大麦前期的根基倒伏；后期追肥在倒2叶期进行与倒3叶期倒4叶期相比，增加了大麦的千粒重．增强了大麦基部第2、3节间的抗折强度，减轻了大麦的茎倒。
The field experiment was conducted to observe the effect of barley topdressing on the lodging resistance of barley in the field experiment. The top dressing in the third leaf stage can promote the tillering of winter before tillering. The secondary root mass was high, the quality of wheat germ was good, and the root lodging of the early barley was reduced. Compared with the inverted 4-leaf stage, the grain-topdressing increased the grain weight of barley in the late 2-leaf stage. Enhances the buckling strength between sections 2 and 3 of the barley base, alleviates the barley stems down.