Thinning and fruit thinning are the cultivation measures that must be implemented to improve the quality of apples. To improve the quality of apples and increase production efficiency, it is necessary to spend thinning and fruit thinning. Practice has proved that thinning fruit and thinning fruit will reduce fruit loss and maintain tree growth. Can make the tree stable production, more favorable to improve fruit quality. After the flower buds of apple trees are formed, the flower buds of most varieties of apple trees are successively opened when the average daily temperature in spring reaches 15°C. In apple, Sichuan, Gansu and other apple producing regions, the flowering period of apple trees is mostly in the middle or late April. Between varieties, the flowering period differs sooner or later. The morning and evening flowering time between varieties is determined by genetic factors, and the flowering order of the varieties in one place is generally stable. There are many flower buds, many types of flowering branches, low temperature during flowering, longer flowering period when the air is more humid, less flowering, higher temperature during flowering, and shorter flowering period when the air is dry. The length of the flowering period is related to the progress of the sparse work. The sparse flowering can reduce the nutrient consumption of the tree, and it will reduce the subsequent physiological fruit drop; the flowering is more, there is no sparse flowering, and the physiological fruit drop is more. Therefore, it is advisable to initiate flowering and fruiting at an early stage. The use of girdling and spraying B9 (for more than a long time) to promote flowers, the amount of flowers will be greatly increased, the result is also more, the tree will have the possibility of excessive load, resulting in saplings have not entered the full fruit period, the phenomenon of size and annual results. Therefore, sparse flowers should be used first in flowering years. Artificial sparse flowering, sparse flowering time should be early, should be in the inflorescence segregation period or flower bud red period began sparsely flowering, the earlier the sparse flower, the better the effect of saving storage and nutrient consumption, beneficial to the development of fruit and young fruit, but also conducive to improve the retention The quality of fruit can also help overcome the phenomenon of size and annual results. For the apple fruit trees with high fruit setting rate, it is better to remove weak branches and weak flowers, or the entire inflorescence on the same branch and on the front part. When the fruit setting rate can reach 75 to 80%, 20% to 25% can be reserved. Inflorescence, all redundant inflorescences are completely removed. Sparse flowers should be removed from the entire inflorescence. During flowering, each inflorescence may retain only the center flower, buds, late buds and inner buds. The experience in the Bohai Bay area is only for the weak trees with too many flowers, or for the excessive blooming of the canopy of the strong tree. The amount of flowers left after the sparse flowering is 30% to 50% more than the required amount of flowers. Prevention of adverse weather during the flowering period affected normal pollination. For a large area of ​​apple orchards, when the amount of flowers is too high, spray 1 to 1.5 degrees of lime sulfur solution can be sprayed after 1 to 3 days. In case of good weather, the rate of fruit set-up is high, and it will be sprayed one or two days later. You can remove about 60% of the flowers and then supplement them with artificial fruit. The size of the sparse flowering effect is related to the degree of sparse flowering and sparse periods. The earlier the sparse flowering occurs, the greater the sparse flowering amount, the more obvious the flower bud formation effect is. Whether the apple tree sparse flower can work, the key depends on whether the sparse flower is serious Baijiu Alcohol Gifts For Holidays Chinese Liqueur,Chinese White Liquor,Kaoliang Liquor Price,Chinese White Wine Alcohol Content Shan Dong Kao Shang wine industry Co.,Ltd , https://www.ksbaijiu.com