杭州市土壤养分状况及培肥措施  

Soil Nutrients in Hangzhou and Fertilization Measures

作　　者：徐祖祥[1] 

机构地区：[1]浙江省杭州市农业局植保土肥总站,杭州310020

出　　处：《土壤》2009年第6期917-920,共4页Soils

基　　金：杭州市财政长期资助项目(2002009)资助

摘　　要：经30个长期定位监测点数据分析,对杭州市不同土壤类型、不同的种植作物和不同的施肥习惯而引起的土壤养分的变化进行论述。经7年时间前后比较得出:土壤有机质、全N、速效N、速效P、速效K含量分别增加23.38g/kg、0.71g/kg、83.70mg/kg、85.05mg/kg和5.33mg/kg,提高79.0%、40.76%、54.35%、88.50%和2.23%。养分含量的提高与土壤质地和种植作物密切相关。一般含黏粒较多的土壤和种植经济作物的土壤其有机质和全N、速效养分的含量也高,而质地轻松、种植水稻为主的土壤,土壤养分含量则低。同时更进一步对杭州市的土壤提出相关的培肥措施。Based on the data from 30 long-term monitoring points, the changes ofsoil nutrients in Hangzhou were discussed under the differences of soil types, culture crops and fertilization practices. The contents of organic matter, total nitrogen, available nitrogen, available phosphorus and available potassium were 23.38 g/kg, 0.71 g/kg, 83.70 mg/kg, 85.05 mg/kg and 5.33 mg/kg and increased by 79.0%, 40.76%, 54.35%, 88.50% and 2.23% respectively than 7 years ago. The increase of nutrients correlated significantly with soil texture and culture crops, generally, the more clays in soils, the higher contents of organic matter, total nitrogen and available nutrients, whereas, the nutrient contents in the coarser-texture soils and the paddy soils were lower. Finally the effective measures for increasing soil fertility in Hangzhou were proposed.

关 键 词：土壤养分 变化状况 培肥措施 杭州 

分 类 号：S157.3[农业科学—土壤学]