In summer, the citrus fruit begins to enter the result period. The sprouting of the early summer shoots is in the fruit physiological fruiting period. If it is allowed to occur in large quantities, it will inevitably cause the contradiction of the fruit to compete for nutrition, and exacerbate the shedding of young fruit. However, too many results will inhibit the differentiation of flower buds in the year, resulting in a lack of flowers in the leap year, which will make the next year form a small year. Four types of citrus tree pruning skills First, the summer trim of the young result tree The sprouting of early summer shoots is in the physiological fruit-drop period of young fruit, in order to protect the fruit, in addition to strengthening the management of fertilizer and water in cultivation, the removal of early summer shoots is the most effective measure for fruit protection. 1. Whenever the early summer tip length reaches 4-6 cm, it should be wiped off and erased once every 4-5 days until mid-May to early June after the physiological drop. 2. If the fruiting is small, the buds can begin to germinate at the end of May to 2-4 cm, and the buds will be removed according to the principle of "three divisions and one division and five divisions." When the summer shoot grows 30 centimeters, it is topping and topping in order to promote the growth and maturity of the summer shoot. Add another autumn tip to the middle or late August. 3, fruiting, and there are some sporadic summer shoots, can be slightly erased, in late July to early August put 1 autumn shoots. In order to avoid the occurrence of winter shoots, a certain number of autumn shoots need to be promoted, and short-term pruning should be performed 15-20 days before the autumn shoots. Second, the rich tree summer trim It is usually carried out within 15-20 days before the shoot is released. Its main purpose is to promote strong autumn shoots. Rejuvenate the branches and restore the tree's vigor. 1, the second physiological fruit drop. It usually ends in mid-to-late June. The tree vigor will last until the end of July. In the middle and late July, the fruit trees will be cut in the lower part of the fruit tree and the dense branches in the inner part, and the falling fruit branches, rat tail sticks, broom branches, and thin. Branches and so on. At the same time short-cut waste weak branches and after repeated removal of summer shoots, the tip of shoot has become a part of nodular enlargement. It should also sparsely cut a small amount of weak branches at the middle and upper part of the periphery of the crown, leaving the branch 8-12 cm. The thickness is controlled to be 0.8-1.0 cm. Weak trees and trees with more results can be properly recut to promote autumn shoots and restore tree vigor. 2, pruning must be combined with a good fertilizer management in order to receive good results. Summer mountain orchards need to be heavily weighed a week before cutting, and the paddy field orchards immediately apply heavy fertilizer after cutting. In the autumn, the supply of water should be emphasized, and in the case of weakly pruned trees, roots should also be updated at the same time. After cutting, we must strengthen pest control and protect new shoots. 3, in early July, according to the tree nutrition, according to a reasonable ratio of leaf to fruit, that is, sweet orange 40-50: 1, navel orange 50-60: 1, Wengan 25-30: 1, practice citrus 60-70: 1, Fine orange 20-30:1 for fruit thinning. Third, the summer of the results of the tree 1. Remove the summer shoots from the end of May to the beginning of July and wipe them once every 4-5 days to prevent the growth of the summer shoots and the fruits from competing for nutrients. In early July, early autumn shoots should be released. 2, in the end of May to early June, 6 cm away from the base of the main branch, with a ring cutter to cut the main branch 1 circle, cut off the epidermis, do not hurt the xylem, can prevent the second physiological fruit drop. 3. During the middle and late July, the inner branches were removed, and the weak branches and the falling branches were cut short. 4, after the old shoots in autumn shoots can promote flower bud differentiation. Fourth, the summer shear injury of citrus trees After the citrus is frozen, some leaves are often withered and the branches are dry. In addition to pruning in time in the spring, it is necessary to adopt reasonable pruning techniques in the summer to achieve timely, moderate, and moderate pruning. 1. Lightly frosted trees should be wiped off summer shoots from late May to early July, and sprayed with hormones and fertilizers to protect the fruit. Can spray 20 kg of water plus 50 mg of gibberellin, plus 0.3% of urea and 0.2% of potassium dihydrogen phosphate. At the same time, the weak branches in the short crown were cultivated into the resulting mother branches, and the dead branches and the diseased branches were cut off. 2, in the frosted trees in the timely removal of the spring after the hair cut too dense new shoots, according to the "strong branches to stay, weak branches to stay" principle, leaving 2-4 on each basis sticks medium and evenly distributed new Tip, wipe the tip of too strong and too weak. When the new shoot grows to 20-25 cm, it will be picked up to promote the summer shoots and increase the number of stages. It is beneficial to expand and restore the canopy. Fight for half of the output the following year. 3, heavy frosted trees should be saw in the spring shoots after the growth to 10-15 cm, choose to stay in different positions of 3-6 shoots as a preparation to foster branches, wait for each tip shoot 25-30 cm long when the picking Short cuts. Two to four new shoots will be cultivated on these shoots. In this way, a new canopy can be formed quickly and the results can be restored after 2-3 years. Fingerprint Lock Safe Box,Hotel Fingerprint Laptop Safe,Hotel Fingerprint Safe Box,Closet Safe Box Hebei Yingbo Safe Boxes Co.,Ltd , https://www.yingbosafes.com