The fruit tree bagging technology is a kind of technical measure for the purpose of protecting the fruits of fruit trees. It can improve the quality of fruits, realize a green fruit, environmental protection and health care as a technical measure, and can effectively promote the increase of income of the fruit farmers. This article introduced the fruit bagging technology, expounded the role of fruit bagging, bagging selection, bagging time, bagging method, bag removal period and methods, provide the basis for the promotion of the technology. The fruit bagging originated in Japan at the beginning of the 20th century. It was first applied to pears, grape cultivation and then to apples; in the early 1970s it was gradually applied to orchard production in Japan, South Korea, the United States, and other countries; Explore and research this technology. China began to bagging pears and peaches since the 1950s, and tackled the difficulties of special bags for low-cost fruits in the 1980s. In the 1990s, plastic bagging achieved significant benefits. Since then, bagging technology has continued to develop. At present, fruit bagging has become an important cultivation technology for fruit tree production in China, and its application covers almost all fruit tree species. First, the role of fruit tree bagging cultivation Fruit-tree bagging is a cultivation technique aimed at protecting the fruit of fruits. It can not only prevent or reduce fruit cracking, reduce damage to pests and diseases, and prevent wind and other accidents from harming fruits. It can significantly improve the appearance quality of fruit and effectively prevent it. Pests and diseases, promote fruit coloring, keep the fruit surface clean, less pesticide residues, enhance fruit storage, increase the rate of commercial fruit, and in line with the requirements of pollution-free high quality and efficient cultivation of fruit trees, production of high-quality pollution-free fruit, improve fruit product value One of the effective ways is an effective way for farmers to increase income. Second, bagging options Fruit bags can be divided into plastic bags and paper bags according to their materials. Their quality will directly affect the effect of bagging. Therefore, they must have a certain production scale, reliable quality, and a high market share, and they will have better results in local applications. Fruit bag. The size and type of fruit bag should be determined according to the variety. Generally, the single fruit weight is 250-350 g. The size of the fruit bag should be 1519.5 cm. The average fruit weight is 250-350 g. The size of the fruit bag should be 1519.5 cm. It is advisable that the average fruit weight is about 400-550 grams, and the size of the fruit bag should be 2023 cm []. Different types of fruit trees or varieties can be used different fruit bags, according to long-term observations of production and testing, bananas can be used blue film bags, longan, mango summer green blue plastic mesh bags, Jin Huang mang available external yellow inner black double Layer composite wet strength paper bags, pears, cantaloupe can be outside the yellow black and red paper double paper bags, Daqing jujube can be used breathable, good transparency of the film bag, can be used single wet strong yellow kraft paper bags. Litchi, grapefruit, peach, guava, red awn, grapes, etc. should be selected white wet strong air permeability good single-layer paper bag. At present, in addition to importing high-quality fruit paper bags, the fruit bags used in China have been able to produce special bags of different types of fruit with high quality. Third, fruit tree bagging technology Bagging time Scientific bagging time is determined according to various factors such as fruit tree species, tree age, tree vigor, and phenological period. At the same time, it is necessary to grasp that the bagging time during the day should be when the dew has dried in the morning and the fruits do not adhere to water droplets or drug droplets. It is usually performed from 9:00 to 12:00 and from 15:00 to 19:00 to avoid light and rain at noon. Apple bagging period should start 35 to 40 days after flowering and be completed within 10 days. The young fruit's transverse diameter should be longer than 1.5 cm and the fruit shank should be semi-lignified. The best bagging period for pears is 15 to 45 days, and it is carried out after fruit thinning until the appearance of rust spots on fruit spots. Prematurely bagging will affect the development of fruit in young fruit, too late bagging is the late turning of the peel, the appearance of poor color, the pores become the outcome point, the surface of the cuticle is prone to cracking. Especially the green pear, when the size of the fruit is clear and the fruit removal is completed, a glove bag is required. Too late, the fruit spot becomes larger and the fruit color darkens. Grape bagging should be started 10 to 15 days after flowering, or when the length of the fruit grows to the time when the soybeans are large. Ears are easy to infect pathogens, especially white rot, anthracnose, acid rot, and gray mold. The best time for peach bagging is 55-60 days after flowering. Bagging is too early, due to the young fruit, susceptible to damage and later affect the growth of fruit, at the same time, because the fruit is too small, it is not easy to determine the shape of the fruit, or the success rate of bagging due to physiological fruit drop. When the bagging is too late and the fruit is too large, the difficulty of bagging is increased, and the fruit is easy to fall over. At the same time, the fruit spots are numerous and large, and the degree of chlorosis is poor, thereby affecting the degree of fruit coloration. 2. Bagging method 2 to 3 days before bagging, in addition to the necessary preparations, the fruit trees need to be thinned according to the load; the fruit trees must be sprayed with an appropriate amount of bactericides such as Nano-Shin, Dove-Ha, Jin-Riz and other fungicides. Force, aerfaite, Anminole and other insecticide acaricides, phenanthrene, stilcare, top green and other foliar fertilizer; also need to carry out moist bag softening treatment, spray a small amount of water to the mouth of the bag, and then Put the whole bundle in wet place or wrap it in wet soil with a single layer newspaper to make the fruit bag moist and flexible. After selecting the young fruit, carefully remove the petals and other debris attached to the young fruit. Hold the paper bag with your left hand, open the bag mouth with your right hand, or open the bag mouth with your mouth so that the bag body will bulge and make the bag bottom two Ventilation opening hole of the angle is opened. Hold the mouth of the bag 2 or 3 centimeters. Put the mouth upwards or downwards. Put the fruit and put the fruit on the opening base of the bag (do not install the leaves and the branches. Into the bag), and then fold the bag from the sides of the bag in a “folding fan†manner at the cut-out, bind the tying thread to the bag opening, and tear the tying wire from the connection point above the line opening. At 90 degrees, rotate the bag along the mouth of the bag for 1 week, so that the young fruit is in the center of the bag body and is suspended in the bag to prevent the bag body from rubbing the fruit surface. Do not wrap the binding thread around the handle. In addition, when bagging also need to pay attention to: First, the bagging sequence first up and down, first inside and outside, to prevent touch down the fruit; Second, when the bagging force direction should always be upward, so as not to pull off the young fruit, hard Should be light, try not to touch the young fruit; Third, strictly select the fruit shape is correct, the fruit is tightly closed, develop good young fruit; Fourth, the bag mouth should be tight, so as to avoid pests crawl into the bag to harm the fruit and prevent the paper bag wind Falling down; Fifth, the cause and effect bag is coated with pesticides and wax, and should be washed in time after operation to prevent poisoning. 3. Bag removal period and method The fruit bag removal period differs greatly depending on the type of bagging tree species, variety, and bagging type. The single-layer bags of yellow-green varieties can be removed at the time of harvesting or not, such as wolfberry and pear; Varieties use single-layer bags, about 30 days before harvesting, the bag body is torn into an umbrella-like shape, covered on the fruit to prevent direct eye sight, 7-10 days after the removal of the entire bag to prevent sunburn, and accelerate the coloring; For red varieties using double-layered bags, pick the outer bag 30 to 40 days before fruit harvest, and remove the inner bag after 4 to 5 sunny days after removal of the outer bag. l The appropriate removal time for bags is from 9:00 to 11:00 in the morning and from 3:00 to 5:00 in the afternoon. In addition to the paper bags on the south side of the morning, we must avoid the strongest time of daylight at noon in order to prevent the fruits from being sunburnt. Cloudy days can be carried out. Grapes can be harvested without bag removal, and they can be removed about 10 days before harvesting. Generally, they should be based on the degree of coloration of the variety and ear. The bag removal operation is the same as that for apples and pears, and the plastic bags can not be removed. IV. Conclusion There are still some problems that need to be solved in the popularization and application of fruit tree bagging technology, such as the quality of bagging, the standardized production of bagged fruit trees, the control of pests and diseases in bagging fruit trees, and the overall level of farmers, but with the adjustment of the market and the introduction of technical regulations. The improvement of the training of farmers, the application of bagging technology will be more extensive, and at the same time it will play a huge role in promoting the production of fruit trees in China. Product Description: Tarot Distributor,Tarot Card Accessories,Aggregator For Drone,Tarot Power Board Dongying Youjia Industry & Trade Co. Ltd. , https://www.uav55.com
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