Study on distribution characteristics of soil nutrients of sugarcane field in Jianshui County.

92 soil samples in Jianshui sugarcane field were analyzed.The results showed that the majority of soil in Jianshui sugar cane area assumed the slight acidity and the acidity,the organic content was moderate,nitrogen and phosphorus content were somewhat low,the available nitrogen content was moderate,the effective phosphorus content lacked extremely,the potassium content was moderate,the effective potassium content was high,the effective copper and the effective manganese content were rich,and the effective zinc was scarce.Based on the Jianshui soil foundation nutrient,two kind of sugar canes special-purpose mixed fertilizers formula were proposed,namely,base fertilizer N∶P2O5∶K2O=12∶18∶10,newly planted sugarcane was applied mixed fertilizer 600 kg/hm2 as base fertilizer,and topdressing N∶P2O5∶K2O=28∶12∶5,the topdressing employed 750-1050 kg/hm2,in which high-yield field executes the lower limit,and the low-yielding land executes the upper limit.