【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。更多还原

【Abstract】 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.更多还原