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春小麦对前茬土壤残留氯离子的吸收利用显著低于对当季含氯化肥的吸收利用,前者利用率为12.74%。后者为26.72%,相差13.98%。土壤残留氯量不同,利用率有显著差异:残留量410ppm 时,利用率为13.31%;448ppm 时为13.26%,484ppm 时为11.67%。
The uptake and utilization of soil residual chloride in spring wheat was significantly lower than that of the absorption and utilization of chlorine-containing chemical fertilizers in the previous season. The utilization rate of the former was 12.74%. The latter is 26.72%, a difference of 13.98%. The amount of residual chlorine in soil is different, and the utilization rates are significantly different: the utilization rate is 13.31% at 410ppm, 13.26% at 448ppm and 11.67% at 484ppm.