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在盐土中,Cl~-比SO_4~=对作物的危害大,是一个事实。根据凱利琴科所发表的材料,土壤中含Cl~-在0.122％水稻种籽完全不能发芽,但SO_4~=在0.507％水稻种籽发芽却不受多大影响。又如菲多洛夫所发表的材料,在中亚细亚种植棉花,对Cl~-最大的忍耐力为0.04％,SO_4~=则为0.30％。我们本国试验的材料也有同样的结论,例如新疆农科所56年在焉耆试验的资料,春小麦对0～30cm土层内Cl~-的最大耐力为0.0919％,而
In saline soil, it is a fact that Cl ~ - is more harmful to crops than SO_4 ~ =. According to the material published by Kellychenko, soil containing Cl ~ - could not germinate at 0.122% of rice seeds completely, but SO_4 ~ = did not affect much at 0.507% of rice seeds. In another example, Fidorov published material, planting cotton in Central Asia, Cl ~ - maximum endurance of 0.04%, SO_4 = = 0.30%. The same conclusion is drawn from the materials we used in our country. For example, according to the data from 1986 in Yanji of Xinjiang Agricultural Research Institute, the maximum endurance of spring wheat to Cl ~ - in 0 ~ 30cm soil layer is 0.0919%