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土壤测定和田间试验结果表明，我国东北地区各类非盐渍化农田土壤中原始含氯量在２２～５５ｇｇ－１，土壤剖面通体含氯量变化不大，总体含氯水平较低，适于施用含氯化肥的土壤可能容量远未达饱和程度。连续３年定位试验常量施肥条件下，氯化铁与尿素等氮等效，连续施用氯化铵的肥效仍很稳定。施用氯化铵加氯化钾，亦未因施氧量的增加而降低含氯化肥肥效。
The results of soil testing and field experiments showed that the original chlorine content in all non-salinization farmland soils in northeastern China was between 22 and 55gg-1, the content of chlorine in the whole section of the soil profile changed little, and the overall chlorine content was low Soil with chlorinated fertilizers may be far below saturation. Under the conditions of constant fertilization for 3 consecutive years of positioning test, ferric chloride is equivalent to nitrogen such as urea, and the effect of continuous application of ammonium chloride is still very stable. Application of ammonium chloride plus potassium chloride, nor because of the increase in oxygen consumption and reduce the effectiveness of chlorinated fertilizers.