The cherry shoots of young cherries are delicate and have poor antifreeze and disease resistance, and management should be strengthened in the spring. Fertilizer before germination, plant 50 grams of urea, while pouring enough water to thaw. Pollination cherries are generally cross-pollinated tree species, and there are few self-pollination tree species. Planting not only requires pollination trees but also pollination measures during the flowering period, usually for artificial or flowering. In the spring, the cut-and-shear tree should be adapted to the local conditions and the shape of the tree. Refer to the pruning method of the apple tree. The evacuation layered shape is: Eradicate the germination of the lower 50 centimeters of the trunk and grow 3 to 5 branches within 20 centimeters from the top of the trunk. When the length of the branches reaches 30 to 50 centimeters, leave 3 strong and well-directed hosts. Branches, leaving 1 to 2 auxiliary branches on the main branch, leaving 80 to 120 centimeters of light cut in the center, and all other branches cut off. The size of the remaining three main branches is: the first main branch is larger than the second main branch, and the second main branch is larger than the third main branch; the direction of the three main branches: the first main branch cannot be left in the south and can be left in the remaining three directions . If there are only 1 or 2 branches within 20 centimeters, leave the appropriate branch as the main branch. The center will be lightly cut at 50 to 60 centimeters on the branch, and useless branches will be cut off. The spindle shape was: 90 cm in diameter, and all buds and sprouts on the seedling stems within 50 cm of the ground were wiped off. The branches were separated by 20 cm, and they were oriented flat. The central leaders were short at 1 meter. 3 to 5 Baume degree lime sulfur can be sprayed before the germination and control of sprouts, which can effectively control various pests and diseases; spraying imidacloprid, diflubenzuron, Peach Xiaoling, and Bacteria will cure the aphid, leafhopper larvae and various Bacterial disease, and then spray some of the foliage fertilizer effect is better.
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1. Select a low-power controller. The controller will work 24 hours a day. If its power consumption is large, it will consume part of the power. A good choice is a controller that consumes less than 1 mA.
2. Select a controller with high charging efficiency. The controller of the MCT charging mode can automatically track the high current of the panel. Especially in winter or periods of insufficient light, the efficiency of MCT charging mode is about 20% higher than other charging modes.
3. Select the controller for bidirectional power regulation. Controllers with power regulation have been widely promoted. When there are few pedestrians at night, one-way or two-way lighting can be automatically turned off to save electricity. It can also adjust the power of the LED lights.
In addition to the above power-saving functions, attention should also be paid to the protection functions of the controller for components such as batteries. In addition, when setting the under-voltage protection value of the controller, try to adjust the under-voltage protection value to ≥ to prevent the battery from over-discharging.