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在灌漠土上进行田间试验.结果表明,亩施N15kg时,氯化铵对甜菜的产质量与尿素或氯化铵与尿素混配的处理无显著差异.只有施氯量至耕层土壤含氯超过1124mgkg~(-1)时,甜菜含糖量才显著下降.综合氯对甜菜产质量的影响,甜莱耐氯临界值为灌漠土耕层土壤施氯量562mgkg~(-1).0～200cm土壤剖面氯残留量与施氯量呈极显著正相关.本试验条件下,施用含氯化肥不会明显增加耕层土壤含氯量,而主要积累在80cm左右深层.
Field experiments were carried out on irrigated desert soil.The results showed that there was no significant difference in the yield and quality of beet mixed with urea or ammonium chloride when urea 15 kg / When the content of chlorine exceeds 1124mgkg -1, the content of sugar in beet declines significantly, and the critical value of chlorine tolerance in sweetpotato is 562mgkg -1. Under the experimental conditions, the application of chlorinated fertilizers does not significantly increase the soil chloric content, but mainly in the depth of about 80cm.