[Objective] The paper aimed at researching on the ecological remediation materials and related technologies in degraded land.[Method] Pointing at the specific reasons for degradation of soil moisture and fertility conditions,the ecological remediation materials and related technologies for soil moisture had been studied using layered silicates as substrate materials and using straw turnover as the method.The application research had been carried out in degraded cultivated land,compacted land,saline-alkali soil and laboratory of nine provinces and regions on 26 species and 48 varieties.[Result] The materials and related technologies are environment-friendly in formula,processing,application with no hidden trouble as secondary pollution,which can be used for the restoration of positive balance of soil moisture conditions（water,fertilizer,gas,and heat）,establishment of the core of a stable circle and improving food production steadily.The materials are more suitable for plant growth than chemical fertilizers,applying of which helps plants obtain better adversity resistance.[Conclusion] The ecological remediation materials for soil moisture can reduce the application of chemical fertilizers effectively and improve the production and quality of crops remarkably.
主要从搅拌时间、搅拌速度、矿浆液固质量比以及硫酸钾过饱和度4个因素研究了硫酸钾于膨润土层间结晶的最佳工艺条件。同时通过正交试验得到其最佳以及主次反应条件,并对产品的缓释效果进行研究。得出硫酸钾于膨润土层间结晶的最佳工艺条件:矿浆液固质量比为5,搅拌速度为2 m/s,搅拌时间为30 m in,过饱和度为0.15。由SEM照片得知留在膨润土中的硫酸钾进入到了层间。
