Longan "rush" how to prevent?

Longan "rush" how to prevent? Please guide the flower bud germination of longan, be sure to shoot first, and then differentiate and develop inflorescence from the axil of compound leaf primordium, that is, from leaf-flower mixture to pure inflorescence. When the inflorescence primordia is diapause or the construction potential is weak, it is very easy to form incomplete inflorescences with coexistence of flowers and leaves. In the spring germination period of longan, due to the warmer weather and the increase of air humidity, it is easy to appear the phenomenon of "flushing", especially the green and strong fruit trees that have just hung fruit. There are two main types of shoot: one is that there are leaves and flowers in the flower ear, and the other is that there are a few buds in the middle and lower part of the flower ear and vegetative branches in the upper part. To prevent the "rush" of longan is an important part of ensuring the high yield of longan in that year. Our main methods are as follows: first, do a good job of prevention. 1. Reasonable application of flower-promoting fertilizer should be used after flowering. For longan trees with thick green leaves and vigorous growth, fertilization should be applied later, and the application of nitrogen fertilizer should be strictly controlled. 2. Remove the terminal bud when the main inflorescence axis of the flower ear is 10-12 cm long and the red crab eye spot appears in the leaf axil, the heart is picked in time to break the apical dominance and promote the lateral bud germination and the rapid emergence of lateral inflorescence. 2. When sprouting occurs, take comprehensive technical measures in time according to different conditions. 1. Remove the leaflets on the flower spike manually, once every 2-3 days, until pure inflorescence is formed. The disadvantage of this method is that it is labor-consuming and consumes tree nutrients. It is difficult to operate big trees. 2. When part of the shoot of the orchard occurs and the leaflet is red but does not turn green, it is sprayed with 40 mg of abscisic acid (alkylated derivative of abscisic acid), 20 ml of amino acid sugar phosphonate and 50 kg of water. Spray the new tip, spray to the leaf dripping degree, make the leaflet turn yellow and fall off. 3. When the red spot of the spike of the puffed flower disappears and the leaflet has unfolded and grows, add 50 kg of water to the tender shoot in the appropriate phenological period, spray the new shoot directly from 6: 00 to 10: 00 in the morning on a sunny day, focus on the back of the young leaf, kill the young shoot quickly, and spray with 20 ml of leaf bud dormancy, 20 g of potassium amino acid and 50 kg of water a week later, once every 3 days, three times in a row to promote flower formation. 4. Alternately cut the semicircle on the trunk or big branch or tie it 1 / 2 times with the No. 16 iron wire, so that the iron wire is slightly trapped in the cortex, and the iron wire is released when the small red dot appears in the flower ear. Click to get more longan planting techniques click to get more fruit planting techniques