关键词: 谷子, 液体硅肥, 产量, 抗倒伏性

Abstract: 【Objective】In order to explore the effect of foliar liquid silicon fertilizer on millet growth development and yield.【Methods】Different spraying concentrations of silicon fertilizer （0.6,0.9,1.2,1.5 L/hm²） were set,and spraying was carried out at the jointing stage,the heading stage,and the grouting stage,respectively,for golden seedling K1 of millet varieties with weak lodging resistance. The field investigation,the indoor seed examination,and the yield measurement were conducted for comparison.【Results】With the increase of the application concentration of silicon fertilizer,the growth process was accelerated and the growth period was shortened. When the spraying concentration was 0.6-1.5 L/hm²,the growth period of each treatment was 118,118,117 and 117 days,respectively,while the control was 120 days. The yield in each treatment room increased significantly （P<0.05）,with an increase of 20%-25%,and the lodging resistance of millet was stronger than that of the control group.【Conclusion】The spraying of liquid silicon fertilizer can reduce the growth period,increase the yield,and reduce the occurrence of lodging to a certain extent.

Key words: Millet, Liquid silicon fertilizer, Yield, Lodging resistance