为了解甘蔗产区土壤养分状况,并根据养分丰缺情况进行合理科学的施肥,最终实现甘蔗高产高糖,对云南省临沧市沧源蔗区采集的185份土壤样品进行养分测定,结果表明:沧源蔗区土壤大部分呈微酸性,53.51%土壤样品的pH在5.5~6.5;有机质含量平均为2.74%;全氮含量极低,75.14%的土壤样品小于0.050%,平均为0.042%;碱解氮含量中等,平均为101.43mg/kg;全磷含量低,平均为0.082%;有效磷含量低,平均为6.33mg/kg;全钾含量低,52.97%的土壤样品含量在1.01%~1.50%,平均为1.403%;速效钾含量中等,平均为146.32mg/kg;微量元素有效锌缺乏,79.75%的含量低于1.5mg/kg;有效锰、有效铁和有效铜93%以上的土壤样品都高于临界值,铜、铁和锰不缺乏。根据土壤养分分析结果,在沧源蔗区建议有机肥结合速效氮磷钾复合肥施用,有利于甘蔗的高产高糖。 In order to understand the status of soil nutrients in sugarcane producing areas and fertilize reasonably and scientifically according to nutrient abundance and deficiency, finally realize the high yield and high sugar content of sugarcane. The nutrient contents of 185 soil samples collected from Cangyuan sugarcane field in Lincang, Yunnan Province were determined. The soil of Cangyuan sugarcane field was mostly slightly acidic, the pH of 53.51% soil sample was 5.5-6.5, the average content of organic matter was 2.74%, the content of total nitrogen was very low, the soil sample of 75.14% was less than 0.050% with an average of 0.042% The average content of alkaline nitrogen was 101.43mg / kg; the content of total phosphorus was low, with an average of 0.082%; the content of available phosphorus was low, with an average of 6.33mg / kg; the content of total potassium was low and the content of soil with 52.97% was 1.01% 1.50%, an average of 1.403%; available potassium content of medium, with an average of 146.32mg / kg; trace elements effective zinc deficiency, 79.75% of the content of less than 1.5mg / kg; available manganese, available iron and more than 93% Samples are above the critical value, copper, iron and manganese are not lacking. According to the results of soil nutrient analysis, it is suggested that the combination of organic manure and available NPK fertilizer in Cangyuan sugarcane planting area be beneficial to the high yield and high sugar content of sugarcane.