三亚市凤凰镇耕地土壤养分状况分析

采集三亚市凤凰镇耕地土壤样本260个，分析土壤pH值、有机质、碱解氮、有效磷、速效钾含量。结果表明：三亚市凤凰镇耕地土壤pH值平均为5．27，土壤样本整体呈酸性，土壤酸化严重；有机质含量中等偏下，平均值为2mg，kg；碱解氮含量丰富，平均值为98．59mg/kg；有效磷含量极为丰富，平均值为39．685mg/kg；速效钾含量缺乏，平均值为80．78mg／kg。结合凤凰镇的作物种植状况及土壤养分含量特征提出施肥建议。

Analysis of Nutrient Condition about Cultivated Soil in Fenghuang Town of Sanya City

260 samples of farmland soil of fenghuangtown in Sanya City were collecteci. The~soil reaction ,the content of organic matter ,alkaline hydrolysis nitrogen, available phosphorus and available potassium were tested. The result showed ： the average value of the pI-I of the farmland soil was 5.27,in general,the soil was acidic,the acidification of the soil was really serious. The content of organic matter was deficient,the majority of it was in the middle level and the average value was 2 mg/kg.Alkaline hydrolysis nitrogen was secondly abundant,its average value was 98.59 mg/kg.Available phosphorus was really abundant, the average value was 39.685 mg/kg.Available potassium was deficient, the average value was 80.78 mg/kg.According to crop planting conditionas and soil nutrient charcteristics, suggestions of fertilization were put forward for refernce.