机构地区: 华南农业大学资源环境学院
出 处: 《土壤通报》 2003年第2期106-110,共5页
摘 要: 本文从肥料养分释放与作物吸收的"供—求"平衡关系出发,阐述了养分控释的重要意义;列举了养分控释的主要技术途径及其作用机理,并从控释材料来源、设备选型、控释效果等方面对各种技术途径进行了评述;在控释肥质量评价方面,说明了引入土壤因子的重要性,认为把"肥—土"作为一个整体来考虑,有利于更客观、更合理地评价控释肥的质量。 This paper expounds the controlledrelease of nutrient, based on 'supply-demand' balance relationship of fertilizer nutrient, enumerates the main technical ways and effect mechanisms of nutrient controlledrelease, and makes comments on the various ways in view of resources of controlledrelease materials, equipment selection and the effect of controlledrelease. Furthermore , the authors illustrate the importance of soil factor for quality evaluation of controlledrelease fertilizers(CRFs).