Pear tree planting: how do pear trees be cut in summer?

How are the pear trees cut in summer? Who introduces the method of summer pear tree pruning can refer to the following methods: first, pear branch growth characteristics 1, pear shoot growth period is short, and has obvious stages. The long shoots stopped growing before the first and middle of July, while the medium and short shoots stopped growing before the first and middle of May. 2. The leaf of pear tree grows fast and the leaf area forms early. The leaves of the middle and short shoots stopped growing in the first and middle of May, and the total leaf area accounted for more than 85% of the whole tree. The increase of leaf area after late May mainly depended on the leaves on the long shoots. 3. The upright branches of pear trees are very upright, and there is a prominent contradiction between the growth of new shoots (including fruit platform secondary shoots) and the growth and development of young fruits for nutrients in the short term. At the same time, the dominance of the new shoot and top on the back is stronger, while the growth potential of the tip of the branch is weak. In production management, the treatment of main branch angle and fruiting branch group angle is very sensitive to fruit growth and crown expansion. Can be combined with fruit thinning, bagging to do a good job of summer shearing. Second, summer pruning principle 1, summer pruning time should not be early, when the short and medium shoots basically stop growing, the leaf area of the tree reaches more than 85% of the whole tree, and the new shoots are in the degree of semi-Lignification, that is, it is better to carry out supplementary pruning in the first and middle of May, and supplementary pruning will be carried out from June to July. 2. Pruning is based on maintaining the original crown, branches and leaves. Under the condition of stable tree potential and balanced growth, the purpose of pruning is to improve the ventilation and light transmission conditions of the orchard. The amount of pruning should not exceed 5%-10% of the branches and leaves of the whole tree, and the illumination rate under the projection of the crown should reach 20%-30%. 3. Summer shearing focuses on the regulation of vegetative growth and reproductive growth. According to the current tree structure and orchard density, the key is to deal with the balance between young fruit growth and new shoot growth (including fruit platform secondary shoots). Third, summer pruning method 1, thinning branches. Remove the cutting and saw branches and the strong and long shoots germinating on the back, top and bore, and try not to pick or cut short all kinds of long, medium and short shoots that are growing and stopping growing. By thinning branches, the ventilation and light transmission of trees can be improved and the ineffective consumption of nutrients can be reduced. At the same time, it should be noted that in order to maintain the balance of the tree, the thinning of the upper branches of the back should not exceed 1 move 3 times 1 inch 2. 2. Twist the tip. Mainly aiming at the upright and vigorous fruit platform secondary shoots, it is not suitable to take coring or thinning treatment, and there is room for twisting and throwing them, so as to promote the secondary shoots to grow horizontally or obliquely downward, improve the growth angle of new shoots, restrain the growth of new shoots, and increase leaf area. Reducing and reducing and competing with the fruit for nutrients is beneficial to the production of fruit with correct shape, and the weight of single fruit increases, sugar content increases and storability increases. 3. Knead branches. In that year, the vigorous growth and upright angle of the long shoot, except for the thinning part, the rest were softened by kneading branches. 4. Pull branches. The fruiting branches and flower branches, which are more than one year old, upright in angle and with space, adopt the technique of pulling instead of pruning to ease the tree potential, improve the light conditions and promote the good development of fruit and flower bud. 5. Ring cutting. From May to July, ring cutting technique was used to control tree potential and shoot growth and promote fruit development, mainly for the main branches with erect angles, strong growth and unable to open angles. Click for more pear tree planting techniques click to get more fruit planting techniques