The management of late ripe red Fuji apples from the ripening of the fruit to the period before the winter cut is not only related to the quality of the apples in the past, the level of the commodity, but also plays a key role in the growth and development of the fruit trees in the coming year. Therefore, the following management tasks should be done. The red-white spider, the Kang's whitefly, the leaf-rolling moth, etc., which are harmful to the fruit trees, are crawled down the trunk in the form of larvae or adults before the winter season, and the winter is hidden in the cracks and root soil of the trunk. After the cockroach, the parasitic hazard is climbed along the trunk. Using the habit of pests, the trap can be attached to the trunk, which has a strong temptation to the pest. When the pests enter the zone with dormancy, they will burn and kill them in a concentrated manner, which can greatly reduce the number of pests and control the occurrence of harm in the coming year. In addition to the bag in advance, the bag is green, the color is dark, the skin is thick, and the appearance quality is poor. In addition to the bag, the color is light, the sugar content is low, and the bag can be obtained in time to obtain the high quality bagging fruit. Generally, the apple grows in the bag for 90 to 100 days. The bag can be removed 15 to 25 days before the normal harvest of the fruit. The red Fuji apple has a sugar content of more than 12%, and the fruit surface can be removed by more than 70%. In addition to the bag time, avoid the high temperature of the day, or remove the bag on a cloudy day. Double-layer paper bags are excluded from the bag. After 3 to 5 sunny days, the inner bag is removed. The single-layer bag, the black bag inside the yellow bag or the black bag in the outer flower can be stripped into strips and then removed in 2 to 3 days. On cloudy days, you should grab the bag and remove the bag when it is raining. In the morning, except for the fruit bags in the north and west, the fruit bags in the east and south are removed after 3:00 pm. After the reflective film is placed in the bag, a silver reflective film is placed under the canopy to increase the light and promote coloration. In this period, the reflective film can effectively increase the reflective intensity of 60%~70%, significantly increase the coloration of the apple in the fruit tree, and increase the sugar content of the fruit. The film is cleaned within 1~2 days before fruit picking. Ready for reuse in the coming year. The surface of the fruit that has just been taken from the spray sterilization is relatively young, and the adaptability to the outside world is poor, and the pests and diseases are easy to invade. At this time, the disinfectant and the calcium supplement can be sprayed once. Picking leaves and turning fruits timely remove the shading leaves, fruit leaves, yellow leaves, leaflets and thin leaves around the fruit. The total number of leaves is 15%-20% of the total leaf volume, and the light transmittance is 30%. After the fruit has been exposed to the light, gently turn the fruit to color the other side, and if necessary, fix it with tape. In order to increase the commodity rate of bagged fruit, and to produce high-grade fruit, it should be harvested in batches according to the coloring of the fruit. When harvesting, it should be light, light, light, and light. Try to avoid artificial damage and maximize the rate of fruit. Fertilization in September and October is the third peak of apple growth, and it is also a key period for apple coloring. This period is the period of apple tree nutrient accumulation and nutrient return, which is the period for the winter dormancy. In this period, organic fertilizer is mainly applied, with phosphorus and potassium fertilizers, and nitrogen fertilizer should be applied as little as possible in the later stage. In this period, the organic fertilizer is mainly applied to the decomposed farmyard manure, and the application of 4000-5000 kg per mu is accompanied by an appropriate amount of phosphorus and potassium fertilizer to increase the coloration and sugar content of the apple, and also to accumulate a large amount of nutrients for the tree body during winter dormancy. ready. After the leaves of the Qingyuan fruit trees, the leaves, weeds, and rotten fruits that have hidden overwintering pests should be cleaned up in time, concentrated or buried, burned out, and burned and burned, then sprayed. Stone sulphur mixture, agricultural anti-120 and other fungicides, the disease and insects are eliminated in the initial stage. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Light-Blockage Net,Sun Shade Netting Mesh,Protect Plants Pest Control,Indoor Aluminum Foil Shade Net Changzhou Green Nets Co.,Ltd. , https://www.gnshadenet.com