硅肥对甘蔗叶片营养、产量及糖分的影响

Effects of Silicate Fertilizer on Nutrition of Leaves, Yield and Sugar of Sugarcane

施硅可增加甘蔗叶片氮、钾、硅养分含量，改善叶片磷养分状况．适量施硅可使甘蔗增产增糖，过量施硅则使甘蔗的产量和产糖量下降．此外，水溶性硅肥对甘蔗的作用优于构溶性硅肥．

Applying silicate fertilizer could raise nutrient contents of nitrogen, potassium and silicon in sugarcane leaves, and could ameliorate the state of phosphorus in the sugarcane leaves. Applying moderate amount of silicate fertilizer could also increase the yield of sugarcane and sugar, but excessive supply of silicate fertilizer tended to reduce the yield. In addition, the efficiency of water-soluble silicate fertilizer was higher than that ofcitric-soluble one.