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一、磷酸二氢钾改良水质的试验我市地处盐碱地分布区,市区土壤含盐量一般在0.3～0.6％以上。pH值在7.8～8.5左右,地下水位1～2m,地下水矿化度2.0～3.4g/升,自来水pH值也偏高。历年来行道树、绿地浇水均用园林处南海子水。由于种种原因近几年海子水pH值到8.0～8.8。多年来国内外一直在探讨盐碱水土改良途径。改良土壤是基础,浇淡水是关键,经过改良的土壤浇pH值超过7.0以上偏碱性水,数月之后,又会变成碱性土。
First, the test of potassium dihydrogen phosphate to improve water quality Our city is located in the distribution area of saline-alkali soil, urban soil salinity generally above 0.3 ~ 0.6%. pH value of about 7.8 to 8.5, groundwater level 1 ~ 2m, groundwater salinity 2.0 ~ 3.4g / liter, tap water pH value is also high. Over the years, pavement trees, green watering garden water Nanhaizi. Due to various reasons, the pH value of sea water in recent years is 8.0 ~ 8.8. Over the years both at home and abroad have been exploring ways to improve saline-alkali soil. Improved soil is the foundation, fresh water is the key to pouring, improved soil pH value of more than 7.0 alkaline water, a few months later, it will become alkaline soil.