How to promote flowering and fruiting of grapefruit

Promote flower

If a fruit tree wants to blossom early, it is necessary to control the vegetative growth of the tree potential one year before fruiting, so as to promote flower bud differentiation and achieve the goal of early flowering.

The main results are as follows: 1. Controlling the vertical root growth of fruit trees, cultivating more lateral roots, parallel roots, and a large number of lateral and parallel roots will promote flower bud differentiation.

2. Support, pull and drop the branches to increase the angle between the branches and stems, so as to weaken the vegetative growth and promote flower bud differentiation.

3. For thriving young trees, the lateral branches should be cut in 1-2 circles from September to October.

4. In autumn, we should pay attention to drainage, water control, and cut off part of the root system, so as to cause physiological drought of the plant, so as to promote flower bud differentiation.

Fruit protection

1. After flowering, the nutrition of the tree should be increased, the management of fertilizer and water should be strengthened, and the leaves should be preserved as much as possible to prevent abnormal defoliation.

2. We should pay attention to controlling the number of flowers, do not think that the more flowers bloom, the better. We should eliminate those malformed flowers and those that are too dense.

3. Regulate spring shoots and erase summer shoots. Excessive growth of spring shoots and excessive consumption of nutrients will aggravate fruit drop, and spring shoots should be regulated after budding. Mainly wipe off the strong spring shoots (vegetative branches) in the upper part of the crown, flower branches with more than 5 leaves, and late spring shoots; when the summer shoots sprout, wipe off the shoots many times until the fruit is set in mid-July.

4. Prevention and control of diseases and insect pests: the common diseases and insect pests of pomelo trees are red and yellow spiders, leaf curl moths and resin diseases. Special control of these diseases should be taken in summer to prevent these diseases from affecting the quality of fruits.

5. Timely spraying plant hormones on fruit trees, such as cytokinin, phytoxin, Jin Yunda-120 and so on.