摘要
在中性紫色土上,小麦耐土壤氯的浓度为250～500ppm。相应,籽粒和稿秆含氯量分别为0.06%和1.47～1.58%,分蘖期茎叶含氯量为2.12～2.49%。在钙质紫色土上,小麦耐土壤氯的浓度为200～400ppm。相应,存粒含氯量为0.057～0.06%,稿秆含氯量为1.51～1.63%,分蘖期茎叶含氯量为2.11～2.35%。在此范围内,氯对小麦产量和品质无不良影响。
The critical values of tolerance to Cl concentrations for wheat on neutral and calcareous purple soil were estimated to be 500 ppm and 200-400 ppm, respectively. Correspondingly, the chlorine content of wheat grains and straws and of the shoot at the tillering stage was 0.06%, 1.47-1.58%, 2.12-2.49% respectively on neutral purple soils. On calcareous purple soil, it was 0.06%, 1.51-1.63%, 2.11-2.34% respectively. No unfavorable effects on the yield and quality of wheat were found within the ranges of the above values.
出处
《西南农业大学学报（自然科学版）》
CSCD
1990年第6期627-631,共5页
Journal of Southwest Agricultural University
关键词
小麦
耐氯
临界值
紫色土
purple soil
chlorine
critical value
triticum aestivum
