【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。更多还原

【Abstract】 This paper expounds the controlledrelease of nutrient, based on "supply-demand" balance relationship of fertilizer nutrient, enumerates the main technical ways and effect mechanisms of nutrient controlledrelease, and makes comments on the various ways in view of resources of controlledrelease materials, equipment selection and the effect of controlledrelease. Furthermore , the authors illustrate the importance of soil factor for quality evaluation of controlledrelease fertilizers(CRFs).更多还原