张俊华,贾科利,孙兆军.宁夏银北地区盐化土壤改良成效研究[J].干旱地区农业研究,2009,27(6):232~235
宁夏银北地区盐化土壤改良成效研究
Effect of special soil amendment for improvement of saline soil in northern Yinchuan of Ningxia
  
DOI：10.7606/j.issn.1000-7601.2009.06.44
中文关键词:  土壤改良剂  盐化土壤  银北地区
英文关键词:soil amendment  saline soil  northern Yinchuan
基金项目:国家科技支撑计划课题(2007BAC08B03)
作者单位
张俊华 Development Center of New Technique Application and Research Ningxia University, Yinchuan, Ningxia 750021, China 
贾科利 College of Resources and Environment Ningxia University, Yinchuan, Ningxia 750021, China 
孙兆军 Development Center of New Technique Application and Research Ningxia University, Yinchuan, Ningxia 750021, China 
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中文摘要:
      系统分析了利用系列专用改良剂对宁夏银北盐化土壤的改良效应,结果表明:施用专用改良剂后土壤容重平均降低6.44%,孔隙度增加6.62%,土壤粘粒含量减少,粉粒、砂粒含量普遍增加;土壤pH和全盐均有不同程度的下降;土壤有机质和养分含量、产量都有较大幅度的增加,其中施用改良剂Ⅲ的增幅最大,改良剂Ⅳ次之,但考虑改良剂原料成本后施用改良剂Ⅱ当年最终经济效益最大。
英文摘要:
      A field experiment was conducted to analyze the effect of special soil amendments in improving saline soil in northern Yinchuan of Ningxia.The results indicate that applying special soil amendments can decrease soil bulk density by 6.44% and increase porosity by 6.62%;decease soil clay and increase silt and sandy content;decrease soil pH and total saline,improve soil organic matter,nutrients content and yield significantly.The effect of amendment Ⅲ is the best method in improving physical and chemical properties of saline soil.However,the general economical benefit of special soil amendment Ⅱ is the highest when the cost of soil amendments is considered.
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