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Use of Modified clays for retention and supply of water and nutrients

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Title Use of Modified clays for retention and supply of water and nutrients
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Creator B.B Basak
Sharmistha pal
S.C Datta
 
Subject clay minerals, modified clay, nanocomposites, slow release fertilizers.
 
Description Not Available
Clay minerals are natural well known for their role in retention and persistence of organic and inorganic compounds in soil. Clay minerals are being modified through different processes to alter their charge and surface properties tailored for specific purposes. Modified clays in general include pillared layered clays, organoclays , nanocomposites , acid and salt- induced and thermally and mechanically induced modified clays. Pillared , organoclays and nanocomposites constitute a novel class of materials , mainly one kind modification of expanding 2:1 clay minerals. Acid and salt treatments lead to modification of catalytic properties of clays. Clay mineral- polymer nanocomposites are the hybrids which exhibit a change in composition and structure on a scale of nanometres. Modified clay imparts slow- release property to fertilizers and enhances the water holding capacity of soil. Therefore, understanding the methods of clay modification and properties of modified clays may facilitate development of agricultural management systems that ensure long term sustainability of soil resources.
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Date 2020-02-24T05:06:26Z
2020-02-24T05:06:26Z
2012-05-10
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/32279
 
Language English
 
Relation Not Available;
 
Publisher Not Available