Red Fuji apple bagging is a key measure for the production of high-grade pollution-free green food, but a considerable number of fruit farmers have mastered the supporting management techniques of bad bagging, and the commodity rate is very low, which affects the economic income. After applying the apple bagging production technology, the fruit growers gradually explored the complementary management and technical measures to improve the quality of red Fuji apple bagging products in practice. The effect was very good, and higher economic benefits were achieved. Now it is introduced as follows: First, a reasonable plastic trim, improve lighting In pruning, it is necessary to focus on solving problems such as too many backbone branches, large amount of invalid branches, excessive peripheral branches, and insufficient illumination. The auxiliary branches in the layers must be removed in the year to control the lateral growth, enhance longitudinal growth, extend branches of the lateral branches to cut the same age branches, control the back, remove the back, take the two sides as the main, and train the leaf-like and uniaxial extension results. Branches, to branch to see the light, leaves see the light. The amount of Muzhi after cutting is strictly controlled at 8-10 thousand pieces. Second, scientific fertilization and watering High input can be highly effective, and the fertilization of the bagged Red Fuji apple orchard should be conducted according to the principle of “early basal fertilizer, good for topdressing, and timely application of foliar sprayingâ€. The basal application time is mid-to-late September. The basal fertilizer is preferably a pig manure, fermented chicken manure and a cake fertilizer, and is mixed with an appropriate amount of nitrogen, phosphorus, and potassium fertilizers. In order to prevent the occurrence of physiological diseases of the fruit, appropriate amounts of trace element fertilizer such as calcium, magnesium, phosphorus, etc. should be added to the base fertilizer; the top dressing should focus on the cell division and fruit enlargement after flowering and fruit setting. In the early stage, nitrogen fertilizer was dominant, and 0.1-0.2 kg of urea was applied to each plant. Phosphorus and potassium fertilizers were the main fertilizers in the later stage. Before bagging combined with insecticide bactericide spray 2-3 times ammoniacal calcium treasure 800 times liquid, single-spray 2 times active bio-organic fertilizer, in order to facilitate the increase of leaf photosynthesis, promote young fruit growth and development. On the water, focus on the three times before bagging, before bagging, and after bag removal to prevent sunburn and help with coloration and increase production. Third, choose good quality fruit bags The quality of the fruit bag directly affects the quality of the bagged fruit. Now that the fruit bag market is in disorder, fruit growers cannot blindly purchase. It must be based on whether they have national registered trademarks. The best fruit bags used in the region are Japan Kobayashi bags, Qingdao Ai Nong bags, and Longkou Kaixiang bags. IV. Management before bagging and bagging time Red Fuji apples are best bagged for about 40 days after the flowers are cut. The best local time is June 15-30, and the best bagging time is 8-11 am and 2-5 pm in the day. 1. Strict fruit thinning requires that each fruit stand should be left alone, and those fruit types that are not correct, fruit short, and back fruit should all be eliminated. The amount of fruit left per acre should be 1.2-1.4 million. 2. Conduct 2-3 times of pest and disease control. The bactericide is mainly based on the absorbency. The first choice is 70% imported thiophanate-methyl 800 times and 50% carbendazim is 600 times; the insecticide is mainly powder, and the preferred lingulin powder is 1200 times. , Wanling 1500-2000 times, do not spray domestic mancozeb, tetrobacter, Bordeaux liquid and other fungicides and EC insecticides, so as to avoid causing hidden drug damage, resulting in enlarged fruit spots, rough skin, Zoupi crack , fruit rust is serious, skin hole black spots and so on. The last drug before bagging should end 3 days before bagging. After the bagging, pest and disease control is mainly to protect the leaves. Fifth, the correct application of bagging technology When the bag is bagged, the paper bag must be opened so that the paper bag is fully inflated and the corner bottom vent opens so that the fruit can be suspended in the center of the paper bag and the bag can be tightly closed. Be careful when handling. Sixth, coloring management and bagging and harvesting 1, bagging time in the region is generally around October 5, 1-3 days after bagging should be sprayed again 10% Polaroid 1500 times or 1.5% multi-resistant 400 times antimycin to prevent Alternaria Infested bagging fruit. Harvesting should be about 20 days after bag removal. Early fruit collection is easy to decolorize, and when it is too late, the peel appears rough and the color is dark. 2. Picking leaves and turning fruit bags The picking leaves of apples should be carried out 3-5 days after bag removal. The leaves that affect the light near the fruits should be removed, and the amount of picked leaves should be 20%-30%. The transfer of fruit should be carried out about 7 days after bag removal. It is to transfer the fruit with the fruits on the fruit surface and the fruits that are supported by it. Turn fruit and gently turn the positive side of the fruit to the shade side. 3, to strengthen the ground management bag, if the ground humidity, the water will have an impact on the fruit color, more strokes, to keep the surface soil dry; then those off the ground near the invalid branch, the main branch back affect the light branches Partly sparse; conditional orchards can be retroreflective under the tree to increase fruit coloration. 8kw High Frequnecy Welding Machine Product categories of 8Kw High Frequnecy Welding Machine, we are specialized manufacturers from China, High Frequency Embossing For Car Mat, High Frequency Embossing Equipment suppliers/factory, wholesale high-quality machine of high frequency welding R & D and manufacturing, we have the perfect after-sales service and technical support. 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