Early-ripening pomelo such as four season pomelo, dragon pomelo, Pingshan pomelo, etc., are generally picked in the Mid-Autumn Festival and National Day. In order to harvest for the next year, we must manage it in time after picking, focusing on four points:
First, fertilization and shoot. In order to improve the soil fertility and restore the tree potential, in the deep-turning expansion ring ditch, the planting grass grass fertilizer bottom 15 kg, the middle layer of fertilized manure and other organic fertilizer 10 kg, phosphate fertilizer 2-3 kg, layering and soil mixing In order to avoid rooting; and planting green bean fertilizer around the tree for green soil, it is beneficial to restore the vitality of the tree and promote the early ripening of the early autumn, laying the foundation for early results.
Second, reasonable pruning. As a result, the tree pruning should be mastered to weaken and stay strong, to remove the dense and loose, to retain the principle of the inner litchi, cut off the summer shoots, the dead branches, the diseased insects, so that the nutrients concentrate to promote the strong shoots and constitute a good light-transparent crown, reduce pests and diseases Worried.
Third, the prevention of pests and diseases. After harvesting, it is still necessary to prevent ulcer disease, red spider, orange scorpion, and scale insects from harming the leaf tips, resulting in weak leaves of the trees, and taking pesticide control. In the winter, the Qingyuan spray tree general removed the pests and debris on the trunk.
Fourth, drought prevention and antifreeze. Early-ripening pomelo trees are easy to be frozen and harmed by drought. They should be cultivated before winter, and the tree trays should be covered with anti-freezing agents. When the soil layer is dry and white in autumn and winter, water should be watered to prevent leaves, which will help the green leaves to safely overwinter.
Roller shutter door , also known as "shutter door", lots of panel pieces connected together, fixed in the guide rail , take above reel as the center of rotation.
Roller shutter door is used for commercial facades, garages, shopping malls, hospitals, factories and mines and other public places or residential.Electric roller shutter door, especially for large openings, inconvenient to install the ground door , quick opening effect. Such as for the garage door, shopping mall fire shutter door.
Opening methods: Handing driving mode
Rope driving mode
Remote control driving mode
Electric switch driving mode
Roller Shutter Door,Galvanized Roller Shutter Door,Aluminum Roller Shutter Door,Transparent Roller Shutter Door
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