叶面施肥对油橄榄坐果率的影响

摘要

[目的]探索叶面施肥对油橄榄坐果率的效果,为油橄榄花期的保花促果提供依据.[方法]采用单因子和正交施肥比较不同浓度水平及组合下油橄榄的坐果率.[结果]单因子施肥时,HBO_3CO(NH_2)_2、KH_2PO_4、CaCl_2最合适的施肥浓度为0.2%～0.3%,钙肥浓度偏高会降低坐果率;正交施肥处理效果最好的是处理13 ,HBO_3、CO(NH_2)_2、KH_2PO_4、CaCl_2浓度分别为0.2%、0.2%、0.4%、0,坐果率达1.38%,比CK高1.10%.[结论]采用合适的施肥浓度或组合能提高油橄榄的坐果率,合理的组合施肥效果更好.%[Objective] The research aimed to explore the effect of leaf fertilization on the olive' s fruit-setting rate, and provide reference for olive's flowers and fruits protection. [Method] The single factor experiment and orthogonal designment were applied to compare different fertilizer levels and combinations of olive' s fruit-setting rate, [Result] TheResults showed that the most suitable concentration about HBO_3, CO( NH_2)_2, KH_2PO_4 and CaCl_2 was 0.2% -0. 3% , and calcium at high concentration will reduce the fruit-setting rate when using single factor fertilization; the best combination of Orthogonal test was No. 13, whose fruit-setting rate of orthogonal combination reached 1.38%. [Conclusion] Taking appropriate fertilizer concentration or fertilizer combination could increase olive' s fruit-setting rate, and reasonable fertilizer combination have betterResults than single factor.