Effect of special soil amendment for improvement of saline soil in northern Yinchuan of Ningxia
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DOI：10.7606/j.issn.1000-7601.2009.06.44
Key Words: soil amendment  saline soil  northern Yinchuan
Author NameAffiliation
ZHANG Junhua Development Center of New Technique Application and Research Ningxia University, Yinchuan, Ningxia 750021, China 
JIA Keli College of Resources and Environment Ningxia University, Yinchuan, Ningxia 750021, China 
SUN Zhaojun Development Center of New Technique Application and Research Ningxia University, Yinchuan, Ningxia 750021, China 
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Abstract:
      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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