One is spraying boron during flowering. Spraying boron during flowering can effectively increase the fruit setting rate. Generally, 0.3-0.5% borax is sprayed in the early stage of full bloom.
The second is artificial pollination to increase the pollination rate of fruit trees. The effect is very obvious.
The third is to pay attention to thinning and thinning fruit. Thinning and fruit thinning is the adjustment of the number of trees with dense flowers and fruit, so that the load is appropriate. For fruit trees with many flowers, many fruits, and high fruit setting rate, inflorescences with dense clusters must be removed from the inflorescence; varieties with many fruit set rates should be sparse; fruit species with less fruit set rate should be less sparse; generally, two fruit should be left for each fruit branch. Bagging leaves a single fruit.
The fourth is to spray urea after flowering. Fruit trees consume a large amount of nutrients stored on the tree due to flowering, young fruit growth, and growth of new root shoots and leaves. They need to be supplemented with nutrients to reduce physiological fruit loss and increase yield. Generally, a 0.5% urea is sprayed about 10 days after flowering. , To promote the growth of leaves and reduce the second physiological fruit drop has a significant effect.
Fifth is the cyclic peeling of auxiliary branches. The circular peeling of auxiliary branches has a good effect on reducing flowering and falling fruit, but it is necessary to pay attention to ringing. Mainly in the flowering of the auxiliary support girdling, the excision should not be too wide, with a thick branch 1/8-1/10 is appropriate. Unflowered saplings, girdling is also an effective measure to promote flowering and should be carried out before flowering. For the purpose of flowering, it can be done before the new shoots stop growing.
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