脱硫废弃物和耐盐牧草对碱化土壤的改良效果  

The Effect of Flue Gas Desulphurization By-product and Grass Application on Alkali Soil Improvement

作　　者：沈艳[1,2] 谢应忠[1,2] 兰剑[1,2] 李培富[1] 

机构地区：[1]宁夏大学草业科学研究所,银川750021 [2]宁夏大学西北退化生态系统恢复与重建教育部重点实验室,银川750021

出　　处：《西北农业学报》2011年第3期95-98,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家科技支撑计划项目"黄河河套地区盐碱地改良及脱硫废弃物资源化利用关键技术研究"(2007BAC08B04);宁夏自然基金(NZ0737);宁夏大学自然科学基金(NDZR10-80)

摘　　要：利用田间定位试验,研究脱硫废弃物和耐盐牧草对土壤盐分的影响,同时研究脱硫废弃物对几种牧草生产性能的影响,探讨脱硫废弃物和耐盐牧草对碱性盐土的改良效果。结果表明,脱硫废弃物和耐盐牧草对碱性土壤0-20 cm土层的ESP、pH、代换性Na＋含量均有降低作用;同时也降低（HCO3-＋CO32-）含量、一价阳离子（K＋＋Na＋）含量,使土壤物理和化学性质改善,有利于植物的生长,增加产量。The improved effects of flue gas desulphurization by-product and grass on alkali soil was explored to offers reference for improving alkali soil and choosing salt tolerance grass varietis.The field location test was used to analyze the effects of flue gas desulphurization by-product on soil salinity and performance trait of several grass varities.The results showed that by-product of flue gas desulphurization and grass made a reduction in exchangable sodium percentage,pH,the content of（K＋＋Na＋） and（HCO3-＋ CO32-）,exchange amount of Na＋ on alkali soil,and improved physical and chemical properties.They all increase the fresh grass yeild.The by-product of flue gas desulphurization and salt tolerance grass are recommended in improving alkali soil.

关 键 词：脱硫废弃物 耐盐牧草 碱化土壤 改良应用 

分 类 号：S156.4[农业科学—土壤学]