1座果延期的主要原因在正常管理下的香梨嫁接幼树,一般是第4年显花初座果,第5年初见产量,第6年有相应的产量收益,7年之后形成规模效益,每667m3产量可达1.2～2.0t,单株产量可达30～60kg,逐步进入丰产、高产阶段。然而,在有些园地及香梨群体中,有些4年以上的嫁接香梨树体,迟迟不 The main reason for postponement of delayed fruit tree grafted under normal management of saplings are generally the first 4 years of significant early fruit, the first 5 years see the yield, the first 6 years have the corresponding yield earnings, the size of the scale after 7 years Benefit, each 667m3 yield up to 1.2 ~ 2.0t, single plant output up to 30 ~ 60kg, and gradually enter the high yield and high yield stage. However, in some fields and fragrant pear groups, some 4-year-old grafted pear trees are delayed