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近年来,土壤改良剂研究成为国内外关注的热点。土壤改良剂可促进土壤团粒的形成,改善土壤结构,固定土壤表层,保护土壤耕层,提高肥力,增加其保水、保土、保肥性能,从而有效解决上述问题,提高粮食产量。文章对土壤改良剂的改土培肥效应物理结构、化学特性、生化特性、作物增产效应及其施用技术进行了较为全面的分析和评述,展望了土壤改良剂的研究趋势。
In recent years, the study of soil conditioner has become a hot spot at home and abroad. Soil improvers can promote the formation of soil aggregates, improve the soil structure, fix the soil surface, protect soil tillage, increase fertility and increase its water retention, soil conservation and fertilizer conservation, so as to effectively solve the above problems and improve grain yield. The article made a comprehensive analysis and review of the physical structure, chemical characteristics, biochemical characteristics, crop yield increasing effect and application techniques of soil amendment on the effect of soil amendments and fertilizers. The trend of soil amendment was also discussed.