三亚市天涯镇耕地土壤养分状况分析  

Soil Nutrient Regime of Cultivated Land in Tianya Town,Sanya City

作　　者：杜前进[1] 陈川平[1] 张娇[1] 李麒麟[1] 

机构地区：[1]琼州学院生物科学与技术学院,海南三亚572022

出　　处：《琼州学院学报》2013年第5期64-68,共5页Journal of Qiongzhou University

基　　金：三亚市院地合作项目(2013YD09)

摘　　要：借助三亚市推行测土配方施肥项目,对三亚市天涯镇的耕地土壤进行随机分布取样,分析土壤中的养分状况.根据海南省土壤养分含量分级标准,天涯镇188个样本数据结果显示:三亚市天涯镇的耕地土壤多为酸性,pH值多在4.6-5.6范围内;有机质的含量总体上在中等水平,处于三、四级,最多分布在10-20g/kg范围内;碱解氮的含量普遍较为缺乏,多处于三、四级,即在61-120mg/kg之间;速效磷的含量较为丰富,一、二级较多,含量多在11mg/kg以上;速效钾的含量较为缺乏,多处于四至六级,多分布在100mg/kg以下.With the soil testing and formula fertilizing project in Sanya City, the random sampling was used to dispose the farmland soil and to analyze the soil nutrient status in Tianya Town. Based on 188 samples, the re- sults show that the cultivated land is acidic, and pH - value is from 4.6 to 5.6. The content of organic matter generally represents medium level （between 3 and 4 grade） and is distributed from 10 to 20 g/kg. The content of available nitrogen is relatively lack, between third and forth stage （61 -120 mg/kg）. The available content of phosphorus is relatively rich, widely distributed between first and second level （more than 11 mg/kg）. The rapidly available potassium content is relatively lack, between 4 and 6 level （under 100 mg/kg）.

关 键 词：三亚市天涯镇 土壤养分 耕地土壤 

分 类 号：S158[农业科学—土壤学]