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Fixation of zinc by some rice soil clays under upland conditions

 

作者: Rahmatullah,   Ibqal Bajwa,   G. R. Sandhu,  

 

期刊: Communications in Soil Science and Plant Analysis  （Taylor Available online 1985）
卷期: Volume 16, issue 6  

页码: 615-620

 

ISSN:0010-3624

 

年代: 1985

 

DOI:10.1080/00103628509367632

 

出版商: Taylor & Francis Group

 

关键词: Zinc fixation;clay minerals;tropical upland rice soils;wetting and drying

 

数据来源: Taylor

 

摘要:

Because of widespread Zn deficiency in rice, an experiment was designed to evaluate the Zn fixing capacity of several clay minerals separated from tropical rice soils. The study involved the addition of 25 μg Zn per g of clay as zinc sulphate, incubation at an ambient temperature of 30 C±2 followed by alternate wetting and drying and extraction by 0.005MDTPA to assess the magnitude of Zn fixation.

 

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