Remedial measures for "second flowering and fruiting" of Taiwan honey pear

Michelle pear

Recently, I went to the Taiwan honey pear orchard in a certain town. I found that many Taiwan honey pears generally have a serious phenomenon of secondary flowering and fruiting, which will have a significant impact on the flowering and fruiting in the coming year. In order to reduce the loss caused by the secondary blooming and fruiting of honey pear, the remedial measures for the secondary flowering and fruiting of honey pear are proposed as follows:

First, strengthen cultivation management. Pear trees that have bloomed for the second time should timely remove pear flowers and fruits, pick hearts from tender shoots, and reduce the consumption of tree nutrients. For trees that have taken out new shoots, 0.5% potassium dihydrogen phosphate is sprayed every 10 days to promote the maturity of new shoots, open more flower buds, re-cut to restore tree potential, remove excess branches, retract and renew the aging fruiting tree group, cut more short outer branches and lower branches, and promote new technologies. In winter pruning, it is necessary to retain flower buds as much as possible, pruning should not be too heavy, in order to prevent a large number of long branches.

Second, high grafting for species or high grafting of flower branches. For the inferior variety orchard with flower bud opening rate of more than 40% and tree age of about 3-4 years, high grafting of good varieties or high grafting of flower branches.

Third, re-apply base fertilizer, early application and more sprout fertilizer. Heavy application of base fertilizer, supplemented by compound fertilizer, should be applied early and deeply, mainly organic fertilizer, and the amount of fertilizer should be determined according to the tree. The annual amount of fertilizer should be 2000kg / mu, 20kg / mu, 15kg / mu, 15kg / mu and 20kg / mu, so as to supplement tree nutrition, enhance tree potential, improve tree disease resistance, apply more sprouting fertilizer early, increase nutrient supply, and improve pear fruit planting rate and skill.

Fourth, actively do a good job in clearing the garden in winter. Focus on the burning of fallen leaves and pruned tips, reduce the source of diseases and insect pests in the coming year, whiten the trunk and spray 3-5 degrees of vegetable mixture.

Fifth, protect flowers and fruits during flowering, and allocate pollination trees rationally. Artificial pollination, spraying borax and plant growth regulators were used to improve the fruit setting rate. The fruit rate of honey snow pear with reasonable pollination tree is high. Huanghua pear can be used as pollination tree, and the ratio of Huanghua pear to honey snow pear is 1:5.