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作 者 ：封克;汤炎;汪小丽;葛冬梅;张素玲

期 刊 ：植物营养与肥料学报 2002年 8卷 1期 页码：77-80

关键词：铵离子；钾离子；蛭石；表面吸附；晶层固定；

Keywords:ammonium, potassium, vermiculite, surface adsorption, interlayer fixation,

摘 要 ：在K⁺、NH₄⁺不同施用顺序的情况下研究了蛭石对NH₄⁺的晶层固定 ,证实了K⁺的存在对NH₄⁺的矿物晶层固定不具有影响。在Ca²⁺-NH₄⁺二元系统和Ca²⁺-NH₄⁺-K⁺三元系统中 ,对NH₄⁺在蛭石表面的吸附进行了研究 ,结果同样显示 ,K⁺对NH₄⁺在蛭石表面的吸附位点不具有竞争作用。

Abstract:This paper, by analyzing ammonium adsorption at the surface of vermiculite in the binary system (Ca²⁺ and NH₄⁺) and ternary system ( Ca²⁺, NH₄⁺and K⁺), and ammonium fixation in the interlayer of vermiculite with addition of potassium, illustrated that potassium couldn‘t reduce the adsorption of ammonium at the surface of vermiculite and fixation in the interlayer.

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