The invention belongs to the technical field of tree cultivation, and discloses a
greenhouse cultivation method of apple pears, the apple pears and a tea for reducing three highs. From fruits in the myrtle family and
psidium guajava, an apple
pear species is selected through experimenting in a northern
greenhouse to culture
grafting and planting seedlings, and field planting is conducted; soil improvement,
seedling recovering and
seedling accelerating are conducted; after
seedling recovering, fruit setting is conducted in florescence, and
topping is conducted on the portion, between two opposite leaves, above each
branch flower
bud to generate branches and buds.
Pear trees cultivated through the method bear fruits three months earlier, the equality is good, the fruits are big, the taste isgood, and the trees can be planted nationwide, while traditional apple
pear trees can only be planted in the south; by means of the method, the problems are solved that the apple
pear trees cannot beplanted in the north or be planted or cultivated in areas with the temperature lower than 5 DEG C in winter, the yield is low, lignification happens to fruits, the surfaces of the fruits are not smooth, and the
sugar content is low.