Contribution of Increasing Potassium Fertilizer to the yield of Early-mature Potato

In this report,the effect of increasing potassium fertilizer on the production and related physiological traits of early-mature potato was studied for two 2 years.The result showed that increasing potassium fertilizer on the base of common application at local area can improve production of potato,commodity rate of tuber and content of starch,suggesting that potassium fertilizer contributed to quality of potato.Moreover,leaf area index,chlorophyll content and net assimilation rate can be increased by increasing of potassium fertilizer,revealing that potassium fertilizer contributed to related physiological traits.The different treatments of increasing potassium fertilize have different production increase and quality improvenent.