Autumn (September to October) is the harvesting period of middle and late ripe apples, and it is also a key period for orchard management.
1. Deeply change the soil, and deepen the fertilization and strong trees from mid-September to early October. It is possible to use the method of releasing the tree nest (expanding the hole), deep-turning between the plants, deep-turning the whole garden, etc. Shi Xin high fat film 600-800 times liquid, heat preservation and drought resistance, improve photosynthesis, and strengthen the tree body. Pour the frozen water once to ensure safe wintering.
2. Strengthen color management and improve fruit quality. The new technology adopts no-sleeve bag. After use, the fruit has smooth surface, bright color, pure taste and long shelf life. The overall effect is better than plastic bagging.
3. Implementing leaf trimming Autumn leaf trimming refers to the pruning of fruit trees after fruit picking to the leaves. The main task is to open the branches and remove the dense branches. Spray the tree generals to avoid trimming the wounds. The tree causes pollution and prevents the infection of the bacteria.
4. Do a good job in the comprehensive prevention and control of pests and diseases. In September, Baoye Baoguo is the focus of the management of mid-late ripe varieties. Generally, every 15~20 days, it is necessary to spray a Huawang No.3 dilution to force the top extract to reflux. The Lord is a little crazy, without artificial germination, hormone killing, it can control the shoots, promote flowers, more results, and strong fruit.
5. Clean up the orchard in time after clearing the fallen leaves of the orchard fruit trees, spray the tree generals in time, prevent and cure the airborne lesions, and disinfect the plants. Remove pests and diseases, dead branches, fallen leaves and weeds, scrape the old skin of the trunk, and burn it intensively.
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Urobilinogen:Urobilinogen with diazonium salt produce red violet dyes in strong acid medium.
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