KS I ISO 14256-2-2006 土壤质量.氯化钾溶液萃取法测定田间持水土壤中的硝酸盐、亚硝酸盐和铵.第2部分:自动分段式流量分析法
Soil quality-Determination of nitrate, nitrite and ammonium in field-moist soils by extraction with potassium chloride solution-Part 2:Automated method with segmented flow analysis