脱硫石膏在白城市碱化土壤改良中的应用

Application Study of Gypsum on the Alkali Soil Improvement in Baicheng City

利用2008年4月和10月的研究区域的酸碱度(pH值)和含盐量(EC值)的采样数据。运用了对比分析等数理统计分析方法,分析结果表明:施用脱硫石膏处理的19个田块中,除3、15、17田块外,其它田块土壤pH值均有不同程度的降低,pH的平均降低数值达0.429个;本研究中,施用脱硫石膏处理的19个田块中,9、10、11、12、14、17、20土壤全盐量(EC)值的有所上升,其它田块EC数值都有不同程度的降低。EC值总体表现为下降趋势,平均下降0.2085个。

The articles analyzed those data（including PH and EC） of the test plots,in the study area,2008.Though the comparative analysis and the correlation analysis,the Statistical analyzed result showed that： 1,application of gypsum in the processing of the 19 plots,pH value of the average of 0.429;2,this study of 19 two plots,the 9,10,11,12,14,17,20 soil total salt（EC） value has increased,other plots EC values are lower,EC value of the average of 0.2085.the application of gypsum improved alkaline soil can reduce soil pH.However,improved experimental plots without gypsum applied in October,there are clear back to the phenomenon of salt;