关键词: 苹果, 化肥减量增效, 土壤改良与培肥地力, 最佳养分管理, 根层养分调控

Abstract: Chemical fertilizer plays an important role in apple production under the poor soil condition in China. At the same time，improper use of chemical fertilizer resulted in low utilization efficiency and negative impact on fruit quality，soil quality，eutrophication，and greenhouse gas emissions. Therefore，scientific use of nutrient resources and improvement in chemical fertilizer use efficiency is an important scientific issue related to the green and sustainable development of apple industry. This paper analyzed current status on the nutrient management in apple orchard and overviewed current technologies of saving and improving efficiency of chemical fertilizer. The technologies include soil amelioration and soil fertility improvement，best nutrient management，root-zone nutrient regulation，newly emerging fertilizer，and regional formulation fertilizer technology based on‘Regional Fertilizer Formula and Site Specific Adjustment’. Future research prospect related to saving and improving efficiency of chemical fertilizers for apple is also discussed.

Key words: apple, saving and improving efficiency, soil amelioration and soil fertility improvement, best nutrient management, root-zone nutrient regulation