本文通过钾肥不同用量的试验研究,阐明了土壤有效钾为125.1mg/kg时种植甘蔗作物施钾对其产量、产值及主要农艺性状等方面的影响效应,提出了施钾显著增产增值的土壤临界值及合理用量与方法,证明了施钾是提高甘蔗作物产量和糖分的有效技术途径,应用效果前景广阔。 In this paper, the effects of potassium application on crop yield, production value and agronomic traits were clarified through experiments on different amounts of potash fertilizers, and the effects of applying potassium on yield and value of soil were also discussed Value and reasonable dosage and method, it is proved that applying potassium is an effective technical way to improve crop yield and sugar content of sugarcane, and the application effect has a bright future.