Golden Pear is a new species of pear tree introduced in recent years. It has strong tree vigor, opens its tree posture, has a high germination rate, strong branching ability, and has the habit of flower buds. It is easy to form short fruit branches under normal management conditions. This species is sensitive to pruning. Generally after the branches are short-cut, 3 to 5 long branches can be germinated under the clipping. Therefore, the following points should be noted when pruning.
First, saplings should be cut lightly and cut short to ease growth. Gold pears have high germination rate, strong branching ability, and sensitivity to pruning. Therefore, when pruning young trees, they should be as short and short as possible, especially peripheral branches should be cut more; for useless back branches, upright branches, leggy branches, competition Branches should be removed promptly. In pruning, the spindle shape should be dominant. The use of this tree-shaped pruning to reduce the number of branches, the overall stimulation of the pear tree light, is conducive to high yield and stable production. During pruning, attention should also be paid to controlling the tree height to about 3.5m. The whole tree should be left with 15 individual result branches and branches, arranged spirally on the stem, and the thickness of the branches and branches should be controlled within 1/2 of the center of the living position. Maintain 65 to 70 degrees with the center dry branches.
Second, the combination of summer pick and winter cuts promotes branching and increases effective photosynthetic area. The increase of branch number and enlargement of the photosynthetic area in young trees is the main task of young tree management. It is necessary to increase branching and increase the amount of foliage by means of topping and winter pruning in the growing season; before August, it should be used as The cultured shoot shoots each time with an extension of 35cm to promote branching, which lays a good foundation for the cultured results.
Third, adjust the growth and prevent weakening of the tree. The posture of golden pear tree is opened, and the branches are easy to sag and grow. If the single branches grow too long, it is easy to cause weakness of branching, affecting fruit yield and quality. Therefore, when the spindle is pruned, the length of the branch should be controlled between 0.6 and 1 m, and the extra long portion is subjected to topping, retraction, or short cutting.
Fourth, control the results to protect the tree potential. Golden Pear has the characteristics of easy flowering and excessive fruiting, so production should be strictly controlled in production. According to the characteristics of short-spike results of golden pears, the total amount of flowering branches should be controlled at about 30% during pruning. Excess flowering branches should be cut off or pruned and flowers should be trimmed. Flowers should be spent on flowers; at the same time, appropriate short cuts should be developed according to the size of space. Branches to cultivate new fruiting groups. After entering the full fruit period, the yield per mu should be controlled at about 2500kg. When leaving the fruit, pay attention to the even distribution under the trees. Generally, the middle and lower parts of the canopy should be properly maintained. The inner canopy stays more and the upper part of the canopy and the periphery remain less.
Fifth, sticks are updated and remain robust. Although the resulting shoots have a continuous fruiting capacity, the continuous results for many years will reduce the aging of the fruit and the ability to produce high quality fruit. Production practice proves that: After 2 to 3 years of continuous results, the branches should be retracted in a timely manner to ensure the advantage of Zhuangzhi. To this end, it is necessary to adjust the relationship between growth results through the “three-three†system.
Sixth, the application of the back branch for head, year-on-year elevation of the branch angle. In order to change the growth characteristics of the golden pear branches, in addition to the top branches in the growing season, the back branches must be replaced in order to raise the branch angle to maintain the robust growth of the tree.
Seven, strict control of alfalfa flower buds results. Although the golden pears have the habit of flower buds, the buds in flower buds often suffer from lack of nutrients during the process of flower bud differentiation, resulting in quality deviations and unsatisfactory results. Therefore, as long as the amount of flowers is sufficient, the buds should be removed when pruning.
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