膨润土在农畜业环境保护方面应用进展  

Application Progress of Bentonite in Agriculture and Animal Husbandry Environmental Protection

作　　者：李增新[1] 梁强[1] 韩玲[1] 

机构地区：[1]青岛大学师范学院化学系,山东青岛266071

出　　处：《环境科学与技术》2010年第S2期468-471,共4页Environmental Science & Technology

摘　　要：膨润土是以蒙脱石为主要矿物成分的含水粘土矿物,具有较强的离子交换、吸附、粘结等性质。土壤施用膨润土后,可提高土壤的保水保肥性,减少土壤对磷、钾的固定;膨润土与化学肥料混合能提高肥料的利用率;膨润土用作饲料添加剂可提高家禽的饲养价值,降低饲料成本。综述了膨润土的物理化学特性及其在农畜业环境保护方面的应用现状及发展前景。Bentonite is a kind of silicate minerals which major components was smectite.It characterized by its better exchange,absorption,cohesiveness,etc.It was pointed out that,after used in soil,bentonite could raise the storage capacities of soil for water and fertilizer.In addition,reduce the fixations of soil for phosphorus and potassium.The mixture of bentonite and chemical fertilizer could increase the fertilizer use efficiency.Bentonite which used as forage additive can not only improve the value of poultry raise,but also reduce the cost of fodder.A summary was presented of the physicochemical properties of bentonite and its broad application prospect in environmental pollution control of agriculture and animal husbandry.

关 键 词：膨润土 土壤改良 农畜业应用 

分 类 号：S816.7[农业科学—饲料科学]