The first key to pear tree cultivation is proper management

Rational distribution of stored nutrients in the tree body and reduction of useless consumption is one of the important techniques for promoting normal tree growth and producing high-quality fruit. The period from flowering to fruit set is an important period that determines the number of fruit set on the pear tree that year, the development of young fruit, and whether the leaf area that creates material conditions for later fruit development can form early. During this period, reducing useless consumption of the tree body through measures such as bud removal and flower bud thinning is the first key of pear tree management for the whole year.

Bud removal: Remove buds unrelated to fruit production, including buds that easily produce water sprouts and latent buds that sprout relatively late. Buds near the cut after strong branches are pruned in winter on the back of main branches and secondary main branches, buds near the curved parts of large branches, residual branch sections after pruning of water sprouts and short fruit branches on the back of large side branches, and buds near the branching points of side branches easily produce water sprouts. After buds sprout in early spring, they should be removed when they grow to 2-5 mm. The earlier the bud removal, the better, until the flowering period, so as to promote the transport of stored nutrients in the tree body to the fruiting parts. If delayed until buds grow 5-10 mm before removal, although the occurrence of water sprouts can be reduced, the loss of stored nutrients is greater, and it is easy to cause tree vigor decline. Near the cuts after pruning large branches in winter, where blind buds of short fruit branches cluster, and latent buds that sprout relatively late often easily form water sprouts or useless leaves, and they should also be removed in time.

Flower bud thinning: Flower buds can be thinned from the time the scales fall off until before flowering, but it is preferable to thin them when the flower buds are exposed. When thinning buds, press the flower buds downward from top to bottom with the fingers so that the pedicel breaks. At the same time, care should be taken to protect the young leaves growing from the inflorescence, because these leaves unfold early and are the basis for early formation of leaf area throughout the tree. When thinning buds, generally retain one inflorescence per standard of about 20 cm, thin the weak and keep the strong, thin the small and keep the large; thin the dense and keep the sparse, thin axillary (axillary flower buds) and keep terminal (terminal flower buds); thin the lower (lower part of the canopy) and keep the upper (upper part of the canopy), using fruit to control upper growth; remove flower buds that sprout late. After the inflorescence extends, secondary inflorescences should be removed in time, retaining normal flowers. When pollination conditions are good and some flowers have completed fertilization and can meet high-yield requirements, 0.3 degree Baume lime sulfur mixture can be sprayed in combination with pest and disease control to kill the stigmas of late flowers and play a role in flower thinning.