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Pear Sapling
For young pear trees, if they are pruned for a year, they will lose a reasonable tree shape, postponing the arrival of the full fruit period. With the promotion of rapid fruiting and high-yielding cultivation techniques, young tree pruning has appeared to be more pruning than any period of time. important. So how to prune saplings? 1, first of all to determine what kind of tree culture. Pear trees have a lot of trees, and they are commonly used in stratified, variable trunk, single-dry, fence-shaped, happy-shape, and fast-growing delayed crowns. At present, it is common for the crown to delay the happy shape. Its shape is: trunk height 30 cm, three main branches, one center stem, three main branches obliquely distributed into a triangle, each main branch cultured 1-2 vice main branch, the center stem to leave some results on the branch group, The height of the tree is less than 2.5 meters. 2. Reshaping: Before reshaping, we must put the shape of the tree you want to cultivate in your heart. That is to say, you must be aware of the diversity of tree-shapes in your production to create the tree you need. The shaping method is as follows: (1) A tree with enough branches. First select three strong branches as the main branch, obliquely into a 50-60 degree angle, pulling the branches of the rope to be tied in the lower part of the shoots, to prevent the branches from drawing into arches, the rough branches must be taken first Pull it soft and pull it to prevent cracking or breaking. Choose a center that grows weak and does not pull vertically. (2) Insufficient branches. Weakly growing detached roots, leaving 50 centimeters to dry again, prompting more branches to reshape next year. With a strong growth, it is possible to use a single stem as a main branch, and through sprouting and other techniques, to promote the other main branch from the upper bud. If it is a two-branch tree, leaving a weak branch as the main branch, the short-cutting of the strong branch promotes the development of new shoots, and the cultivation of other main branches and the center stem. It is fun to train with three branches. (3) After the trees with excessive branches are left full of main branches and central stems, other branches are kept as much as possible as auxiliary feeding branches, but they should be leveled and the height should not exceed the main branch. 3. Pruning: Under the condition that the strength of the three main branches is relatively uniform, the height of the remaining shoots is basically the same. On the contrary, according to the principle of strong shoots and long shoots, the principle of strong shearing of the weak shoots, the main branch with strong force needs more cuts, and generally leaves more than 2/3. ; Weak branches and more cut to stay and promote long hair, generally cut about half. When trimming, the cuts are slightly oblique, about 1 cm away from the bud, and the clipped buds are left on the outside of the branches. Pruning is an important part of tree cultivation. A good tree-shaped cultivation must be performed in summer with pruning and water and fertilizer management measures. China Agricultural Network Editor