摘要： 通过田间试验，探讨了施用包膜肥料与普通肥料的控释BB肥对土壤养分和苹果产量、品质、经济效益的影响，以期为控释肥在苹果上合理施用提供依据和技术指导。结果表明，普通肥料由于其速溶性，施肥后土壤速效养分变化曲线在一个生长期内表现为逐渐下降趋势；将控释肥与普通肥料掺混后，既解决了控释肥施用前期养分释放缓慢的问题，又满足了作物整个生长期内养分的需求。施肥量相同的SF与CRF1处理相比较，CRF1处理的苹果产量、品质、经济效益显著高于SF处理；即使减少肥料的施用量，CRF2、CRF3处理的苹果产量、品质、经济效益仍不低于SF处理。从提高果实的口感、减少肥料的投入、增加经济效益的角度考虑，本试验的最佳施肥处理为减氮控释肥CRF3处理。

关键词: 控释BB肥, 苹果, 经济效益

Abstract: A field experiment was conducted to study the effects of controlled release fertilizers blended withcommon fertilizers on yield， quality， and economic benefit of apple in order to provide scientific evidence and technicaladvice for applying controlled release fertilizers on apple． The result showed that the available nutrient in soil of SFtreatment decreased gradually in a growing season． The controlled release fertilizers blended with common fertilizerssolved the problem of nutrient's slow release in a short time after being applied and met with the nutrient requirementof plant in a growing season． The application rate of CRF1 was the same as that of SF， but the yield， quality and economic benefit of CRF1 were better than that of SF． The application rate of CRF2 and CRF3 was lower than that of SF，but the yield， quality and economic benefit of CRF2 and CRF3 weren't lower． Considering prompting the palate offruit， decreasing the application and increasing the economic benefit， the CRF3 was the optimal treatment．

Key words: Coated controlled blend bulk fertilizers, Apple, Economic benefit

中图分类号: 

• S661.1