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STUDY ON WATER-RETENTION PROPERTIES AND NUTRIENT EFFICIENCY OF SEVERAL MINERAL-COMPOSITE SUPER ABSORBENT POLYMERS
Author(s): 
Pages: 194-197
Year: Issue:  1
Journal: Acta Pedologica Sinica

Keyword:  矿物复合保水剂吸水倍率水溶性养分;
Abstract: 水资源短缺已经成为制约农业发展的一个障碍[1].应用保水剂节水效果明显.从20世纪60年代开始,已经在美国、日本等发达国家开始研究[2-3],但其高成本成为一个重要制约因素[4].因而开发保水效果明显且低廉的保水材料成为重要研究课题[5-6].加入矿物制成复合保水剂是备受关注的重要技术之一.常用的矿物有高岭土、膨润土/蒙脱石、云母、硅藻土等层状矿物,一般需要高温预处理或超细粉碎[7-10].菱镁矿...
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