For apples, pears and other fruit trees during fruit growth bagging, the fruit spots can be smaller, the fruit surface is clean, the disease and fruit rate is significantly reduced, the fruit coloring is increased, and the fruit's storability (reduces rotten fruit) is enhanced; What is important is to protect the fruits from pesticides and environmental pollution, to produce green fruits, to increase the competitiveness of our fruits in domestic and international markets, and to increase the economic efficiency of orchards. However, the practice of bagging across the country over the years has demonstrated that the following issues should be taken into account when implementing fruit bagging. 1. Pay attention to the selection of fruit bag types. According to the actual situation in the local area and the orchard's own economic conditions, select the appropriate fruit bag type. Numerous tests have shown that the quality of fruit bags currently on the market is best for foreign imported bags (such as Kobayashi bags in Japan), followed by Sino-foreign joint bags (such as Qingdao Qinghe bags and Jiatian bags), and domestic regular bags. Individual small workshops and self-made bags are of poor quality. In order to produce high-grade fruit for export, the orchard with a better management level can choose to import bags; the orchard with a moderate management level and producing middle-grade fruit can choose mid-range bags. In addition to paper bags, Apple can also use plastic film bags, but should use a reliable quality of the regular manufacturers of special air-permeable plastic film bags (such as Sichuan Huiyang plastic film bags), but also have better irrigation conditions, it is best in the crown Paper bags for upper and outer fruits, plastic bags for inner and lower fruits. Pear and other fruit trees applied plastic film bags are still in the experimental stage and should be used with caution. 2. The increase of organic fertilizers and the rational use of chemical fertilizers in bagging can reduce the intrinsic quality of the fruit, which is mainly reflected in the decrease of the soluble solid content (sugar content) of the fruit. In order to maintain the original flavor of the fruit and increase the sugar content of the bagging fruit, organic fertilizer should be added, at least to the amount of kilograms of fruit and kilograms of organic fertilizer; at the same time, it is better to apply fertilizer, and it is better to use special compound fertilizer. To achieve a comprehensive and reasonable nutrient. In addition, it is also possible to spray some fertilizers or plant growth regulators that can improve the intrinsic quality of the fruit during the middle and later stages of fruit growth, such as sprayed fertilizer, amino acid compound fertilizer, and potassium dihydrogen phosphate. 3. Pay attention to the prevention and treatment of pests before and after the bagging process. After the flowers are sprayed, 2 to 3 times of high-efficiency, low-toxicity, low-residual insecticides and fungicides should be sprayed. One of the bags must be sprayed in the near bagging time; Insect control still cannot relax. At the same time, bagging apples can easily lead to calcium-deficient physiological diseases (such as bitter pit disease, etc.). Therefore, attention should be paid to calcium before bagging and after bagging. It can be sprayed with calcium nitrate 300 times or amino acid calcium 400 times for 2 or 3 times every 15 days after Xiehua. 4. The choice of bagging time pears are generally mid-to-late May. Apples can pack plastic bags in mid-May, and paper bags in mid-June. 5 sets of plastic film bag is a supplement to the set of paper, irreplaceable sets of paper bags plastic film bags can significantly reduce the cost of bagging, and to prevent and control pests and keep the fruit surface clean and have a certain effect, the effect is significantly better than not bagging Better. However, plastic film bags are less obvious for accelerating coloration and therefore cannot completely replace paper bags. 6. Pay attention to the quality of bagging To prevent pests and germs from invading into fruit bags (such as pears, yellow powder, etc.), be sure to tie the bag tightly, and if necessary, wrap 2 cm wide plastic strips on the handle and then wrap the bags. mouth. In addition, the bag should be opened when bagging, to avoid fruit, bags tightly (especially paper bags), both to prevent the wear and tear, but also to create a good fruit growth space and environment. 7. Note the air permeability of the bag Poor air permeability, easy to induce black spot disease. Therefore, in the rainy season, especially after rainy weather, in order to reduce the incidence of black spot disease in bagging, the lower corners of the paper bag can be cut to facilitate ventilation and release of moisture. The bottom of the plastic film bag is left unopened, and it must be opened in time after the rain. 8. The timely removal of bags and bags is too early to achieve the effect and purpose of bagging, and too late is not conducive to coloring. In general, bags should be removed 15 to 20 days before harvesting. If it is a single-layer paper bag, tear the bottom first to make the paper bag umbrella-shaped. After 2 to 3 days, the fruit is removed from the environment and then removed. If it is a double-layer paper bag, the outer paper bag can be removed before about 3 to 5 days. Remove the inner antibacterial bag. Plastic bag bags can be harvested, stored, and when to export, and then take off the original bag, use plastic wrap or plastic film storage bags. Garlic ,Fresh garlic,Normal white garlic ,Pure white garlic,ALHO,ALI,Garlic Tablets,Kyolic Garlic,Raw Garlic,Solo Garlic Jining Yuanheng International Trading Co.,Ltd , https://www.china-garlic-exporter.com