The task of pruning cherry in the initial stage of greenhouses is to complete crown canning; continue to expand the crown, increase the result area, and cultivate robust branch; balance the growth of the stems and lay the foundation for the transition to full fruit period. First, the crown of the plastic tree cherries early results, due to seedling or planting quality is not high, slow seedling extension, sapling growth is not prosperous, the natural happy-shaped number of lateral branches and improved trunk-shaped main branch number is insufficient, in the pruning to continue to the main Prolonged branches or mid-dry prolonged branches were moderately short-cut, and the right side buds or leaf spurs were selected to promote sprouting to cultivate new lateral branches or main branches. For a tree with a tree that grows to a sufficient height and the lower main branch or lateral branch grows moderately moderate, you can fall on top of a main branch (modified trunk shape) or a lateral branch at the top (natural happy shape). For backbone branches with small or large angles, bracing adjustments are still required. For large branches that are not properly selected, excessively dense, and large branches on the back of the backbone, they must be promptly removed. Second, increase the results of the site for most of the cherry orchard, the tree into the early fruit, growth is still generally prosperous, new shoots grow larger, in the crown canopy coverage has not yet reached 75%, still have to actively extend the backbone of the branch, expand Canopy, occupy space, increase the result position, stabilize the tree potential. Third, the results of the results of fruiting sweet cherry branches can be divided into two types, namely, extended branch group (whip stem branch group) and branch branch group. 1. Extension branches. The extension branch group has an extension type central axis on the branch group, which has a length of 50 to 100 cm or more, and there are few large branching on the central axis. The perennial bouquet-like fruit branches and short fruit branches are the main results, and the distribution density of the branches is large. Such branches and branches are mostly composed of strong and weak branches and suitable development branches, which are produced after years of slow-release or light and short cut cultures. The strong branching of the apex adopts strong topping control or elimination, so that the majority of short branches in the middle and lower parts form bouquet-like fruit branches and short fruit branches in the second year of slow release, and flowering results in the third year. In order to make a large number of perennial fruit-like fruit branches and short fruit branches grow robustly, establish fruit well, and have a long result, the key is to reduce the number of branches at the tip of the branch and ease the growth. This requires attention to the opening angle and the increase of light transmittance when the culture is started. Naon, Zhiqihong, Hongfeng and other species are the most suitable for the cultivation of this type of branch. 2. Branch type branches. The branched branch group is a kind of branch group with more branches on the branch axis. Compared with the extension branch group, the branch axis is shorter and the branches are more often. The majority of these branches are short cuts in the middle strong branches and then cut, put, and sparse. During the sapling period, it is mainly cultivated by using methods such as topping or twisting to accelerate shaping and reduce the amount of pruning during dormancy. A small number of branches from the weakened uniaxial extension of the group after the formation of heavy retraction. On this type of branch, in addition to the bouquet-like fruit branches and short fruit branches, the middle and long fruit branches as well as the mixed branches also have a certain proportion, so the branch group itself has a strong ability to update. Large purple and other varieties are suitable for culturing a part of this type of branch. 4. Balance the growth between the trunks The cherries should balance the growth between the trunks in the shaping period and the early fruiting period of the saplings, so that the trunk grows stronger than the main branch, the main branch is stronger than the side branch, and the lower main branch or side branch is strong. In the upper main branches or lateral branches, the main and lateral branches of the same level grow in roughly the same way. Due to various reasons, unbalanced tree growth is common during young cherry trees. For example, at the outset, the main branch was cultivated using the same ageing branch of Zhonggan Extension Branch, and the number of main branches selected for the same year was excessive, and there was no timely opening angle in the autumn of that year, so that the main branch was prone to be strong and moderately weak. Phenomenon; the use of competitive branches to develop the main branch, it is prone to double-dry phenomenon, but also easily lead to imbalance between the main branch at the same level; dormant trimming time is too early, cut off from the bud too close, then cut off buds made by Branches tend to grow poorly and will also affect the selection and retention of the extension branches of the branch. The principle of balancing the growth of the cherry tree backbone is to suppress the weak and strengthen the weak, actively take the pruning trend, appropriately increase the angle, as appropriate, thinning branches, reducing the number of long branches. The use of sprouting and circumcision promotes flowering, resulting in early results with fruitful pressure. Pruning of the weak branches to take help, do not make the opening angle is too large, leave more branches as appropriate, increase long branches, reduce the proportion of short cuts, causing fewer wounds on the branches, leaving few fruits or even leaving fruit. Physical Examination Machine,Fixed High-End X-Ray Machine,Portable Flat Panel Detector,Hospital Digital Examination Shenzhen Sunson Tech Co., Ltd , https://www.sunsonkiosk.com