2, irrigation before flowering. Sprinkle at least 1 time before flowering. Where conditions permit, a small amount of watering can be appropriately applied, postponing the flowering period, and preventing the frost to cause damage at the flowering period. No irrigation during flowering so as not to affect fruit setting.
3, flowering auxiliary pollination. The fruit setting rate of self-pollination of fragrant pears was relatively low, and it was prone to low temperature, night frost, sand dust, strong wind and hot wind and other disasters during the flowering period, which affected the normal pollination and fruit setting of pears. The following auxiliary pollination measures may be taken: The first flowering period of pears in the orchard is two boxes per mu. Flowering period for artificial pollination. It can be pollinated manually or by spray, or the pollen of the pollinated variety can be hung in the upper part of the pear tree.
4. Spraying with 0.2% boric acid aqueous solution for 2 consecutive times during flowering can significantly increase fruit setting rate.
5, moderate summer cut. Sparse dense branches, strong twigs, preserved golden mean branches, open light path, ventilation and light transmission to promote fruit setting, increase photosynthesis and enhance fruit coloring.
6, thinning and thinning fruit. Flowering during flowering, the principle is "Sparse flowers in the middle," leaving 2-3 flowers in each inflorescence. Two to three fruit thinnings should be performed before the June physiological drop. Sparse dense fruit, small fruit, malformed fruit, and pod fruit, as well as insect fruit, fruit injury, etc., to ensure stable production and improve the quality of fruit rate.
7, pay attention to pest control. Emphasis should be placed on the prevention and treatment of pear locust, pest mite, codling moth and pear stem bee.
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