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INFLUENCE OF SOIL pH ON SURFACE CHARGE AND WATER TRANSMISSION
[摘要] TheeffectsofpHweredeterminedontheexchangeableNaandelectrophoreticmobilityofNa-saturatedbentonitefromGreybull,Wyoming,andNa-saturatedLethbridgeloamandonthewatertransmissionoftheLethbridgeloam.Thedataobtainedwererelatedtoproblemsofreclaiminganalkaline-sodicsoil.TheexchangeableNaofthebentoniteandtheloamincreasedabout50%frompH6.0to8.0,buttherateofchangewithpHwasnotthesameforboth.Theelectrophoreticmobilityoftheloamincreased284%frompH6.0to8.0,whilethatofthebentoniteincreased53%.ThewatertransmissionoftheloamatpH6.5and7.0wasseventimesandtwice,respectively,thatatpH8.0.ItwasconcludedthatloweringthepHofanalkaline-sodicsoilmaybeaneffectivemeansofenhancingitsreclamation.
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[效力级别]  [学科分类] 农业科学(综合)
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