硅肥的理论、实践与展望

摘要

This paper summarizes the theory of the chemical and physical properties of Si,soil classification for Si soil test and Si fertilizer types,effect of Si fertilizer on plant and soil etc.,and proves that Si fertilizer can increase the P nutrition,yield and quality,resistance to any biotic and abiotic stress ability,reduce the toxicity of heavy metals of plants and improve the water fertilizer retention of soil by practice; also points out that the best source for Si fertilizers is natural rich Si materials.At last,it gives the prospection about the application of Si fertilizer in the sustainable and organic agriculture.%本文从硅的理化性质、基于硅土试验的土壤分类、硅肥类型、硅肥对植物和土壤的作用等几个方面对硅肥的相关理论进行了综述.并通过实践证明了硅肥既可以增加植物磷营养、增加植物的产量和品质,提高作物提抗任意生物和非生物胁迫的能力,减少重金属毒害,又可以改善土壤的保水保肥能力.同时指出硅肥的最佳来源是天然富硅材料,最后对硅肥在可持续和有机农业生产中的应用做了展望.