Advance in research and application of soil conditioner
The problems of soil degradation and food security have been attracted more attention.Applying soil conditioners according to local conditions can improve soil physicochemical properties,balance soil nutrients and passivate heavy metals.Based on the relevant studies,the main function of soil conditioners was reviewed,the research situation of preparing soil conditioners from cheap raw materials such as natural minerals,industrial wastes and agricultural wastes was expounded,the improvement effect of soil conditioners in acidified land,saline-alkali land and heavy metal polluted soil and the effect of soil conditioners on increasing crop yield were summarized.Finally,aiming at the problems,the prospect was put forward in order to provide reference for the research of soil conditioners.
Soil conditionerpreparationapplicationheavy metal pollutionincrease yield of crop
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