Abstract:

According to soil nutrient abundance and deficiency conditions, we carried out scientific and reasonable fertilization to sugarcane, and then sugarcane can ultimately achieve higher yield and sugar. Nutrients of 185 soil samples from Cangyuan County, Lincang Region, Yunnan Province were tested. The result indicated that most of soil samples were of slight acidity, the pH value of 53.51% samples were between 5.5 and 6.5, the average SOM reached to 2.74%, the total N was extremely low (75.14% samples of total N were less than 0.050% and the average total N reached to 0.042% only), available N was medium with a average value 101.43 mg/kg, the total P and available P were low with average value 0.082% and 6.33 mg/kg respectively, the total K of 52.97% samples were between 1.01% and 1.50% and the average total K was 1.403% only indicated that the total K was low, available K was medium with a average value 146.32 mg/kg, Zn content of soil was available which 79.75% was lower than 1.5 mg/kg. 93% samples of available Mn, Fe and Cu were more than their critical value respectively indicated there were not Mn, Fe and Cu deficit among soil samples. According to results, the fertilizing way that organic fertilizer and compound fertilizer with available N, P and K were fertilized together in Cangyuan cane region should be applied in order to getting more cane and sugar yield.