水土保持通报2012，Vol.32Issue(3)：128-132,5.
不同改良剂与石膏配施对滨海盐渍土的改良效果研究
Improvement Effects of Combined Application of Different Amendments and Gypsum on a Coastal Saline Soil
摘要
Abstract
According to the characteristics of coastal saline soils in Jiangsu Province,the effects of four soil amendments were studied.Through single application of amendments and combined application of amendments and gypsum,soil salt content,soil pH value,and the output of crops were measured after the application of the amendments.The best amendment and combination suitable to the coastal soil in research area were selected.Results from the experiment showed that the effect of humic acid on the coastal saline soil was the best and after the treatment of humic acid（300 kg/hm2）,the relative amounts of salt content in the soil layers of 0—5,5—20 and 20—40 cm decreased by 38.2%,24.5%,and 13.9%,respectively.Gypsum could significantly decrease the soil salt content and increase the output of crops.After the treatment of gypsum（300 kg/hm2）,the relative amounts of salt content in the soil layers of 0—5,5—20 and 20—40 cm decreased by 18.8%,13.0% and 4.9%,respectively,and the yield of rape increased by 6.1% compared with that of CK.The combined application of Humic acid and gypsum was the best combination to the coastal saline soil.After the treatment of humic acid（300 kg/hm2） combined with gypsum（300 kg/hm2）,the relative amounts of salt content in the soil layers of 0—5,5—20 and 20—40 cm decreased by 45.1%,38.9% and 25.7%,respectively,and the yield of rape increased by 18.6% compared with that of CK.关键词
滨海盐渍土/盐碱土改良剂/石膏/油菜Key words
coastal saline soil/saline-alkali soil amendment/gypsum/rape分类
农业科技引用本文复制引用
王晓洋,陈效民,李孝良,刘祖香..不同改良剂与石膏配施对滨海盐渍土的改良效果研究[J].水土保持通报,2012,32(3):128-132,5.基金项目
公益性行业（农业）科研项目“盐碱地农业高效利用配套技术模式研究与示范” （）
“江苏高校优势学科建设工程资助项目”资助 （）
