江苏省海安县耕地土壤肥力定位调查与分析  

Investigation and analysis on soil fertility of cultivated farmland in Hai'an County,Jiangsu Province

作　　者：陈斌 季应明 吉训凤 巫建华[2] 许学宏[2] 

机构地区：[1]江苏省海安县土肥站,海安226600 [2]江苏省农产品质量检测中心,南京210036

出　　处：《中国生态农业学报》2005年第3期72-75,共4页Chinese Journal of Eco-Agriculture

基　　金：江苏省农产品清洁生产创新研究项目资助

摘　　要：对江苏省海安县耕地土壤肥力近1000个定位样点调查分析结果表明,2001～2002年海安县耕地土壤有机质、全N、速效磷、速效钾含量分别比1991年增加9.8%、7.4%、190%和18.3%,分别比1982年增加41.3%、31%、245.2%和18.6%,土壤理化性状明显改善.其土壤肥力演变与该县种植业、养殖业和加工业良性循环,大量施用优质有机肥,全面推广平衡施肥技术以及改良与优化种植结构和耕作方式有关.Nearly 1000 fixed positions were investigated and analyzed in Hai'an County,Jiangsu Province.The results show that the cultivated soil organic matter,total N,available P,available K increase by 9.8%,7.4%,190% and 18.3% respectively,higher than those in 1991,and by 41.3%,31%,245.2% and 18.6% respectively,higher than those in 1982.The soil physical and chemical properties are improved greatly.The evolution of soil fertility is related to the coordinate development in planting,breeding and processing,manuring of a great quantity of organic fertilizer,spreading of balanced fertilization technique,and optimizing of planting system and tillage mode in the county.

关 键 词：海安县 耕地 土壤肥力 定位调查 平衡施肥技术 种植结构 耕作方式 

分 类 号：S158[农业科学—土壤学] S159.2[农业科学—农业基础科学]