江西农田土壤钾素肥力的现状、发展趋势及其对策  

Present Situation and Developmental Trend of Soil Potassium Fertility in Jiangxi Provincial Farmland and Countermeasure

作　　者：李祖章[1] 刘光荣[1] 袁福生[1] 刘益仁[1] 邹进平 

机构地区：[1]江西省农业科学院土壤肥料研究所,江西南昌330200 [2]江西省畜牧水产学校,江西南昌330200

出　　处：《江西农业学报》2003年第1期1-7,共7页Acta Agriculturae Jiangxi

基　　金：PPI/PPIC项目资助内容。

摘　　要：通过对江西省第二次土壤普查、近年全省农田养分调查及10个长期定位试验资料的比较分析,详细论述了江西省农田土壤钾素肥力的现状、变化情况及发展趋势;并提出了江西必须加大化肥钾和有机肥钾的投入,只有把每年钾肥的投入加大到300kg/hm2以上,才可能保持土壤钾素肥力的平衡与提高;并针对目前江西省农田土壤钾素肥力的现状,提出了江西省钾肥应用的主要对策。According to the data of the Second General Soil Survey, investigation of farmland nutrients in recent years and ten experiments of long-term location in Jiangxi province, this paper analyzed the present situation and developmental trend of soil potassium fertility in farmland, and proposed that the input of K2O(chemical and organic potassium) should exceed 300kg/hm2 every year in order to enhance soil potassium fertility and keep the balance of soil potassium. Additionally, the author put forward some main countermeasures for potassium application in Jiangxi province.

关 键 词：江西 农田土壤 钾素 肥力 现状 发展趋势 对策 

分 类 号：S143.3[农业科学—肥料学]