The underground pipeline integrated pipe gallery is commonly called the common trench. It refers to the installation of pipelines that can accommodate more than two types of public facilities including electricity, telecommunications, power supply, gas, traffic signals, and closed-circuit televisions. It has complete drainage, lighting, and communications. It is to avoid repeated excavation of roads. Reduce urban visual pollution, protect the urban environment, improve urban energy supply, and ensure the new municipal infrastructure generated by the safe operation of the city. Steel Mould,Prefab Tunnel Mould,Prefab Pipe Gallery Mould,Pipe Gallery Mould Anshan Lijian Engineering Group Co. LTD , https://www.lijianformwork.com
1. Do a good job of seed treatment: before planting, use a small amount of carbendazim and other chemicals to mix seeds or soak the seeds in warm soup, wash and dry, and sow. In order to kill the surface of the seed bacteria, to ensure that no disease and strong seedlings after emergence.
2. After seeding, use a packet of seedlings (20 grams) to mix 20 kg of fine mud for cover seed puree.
3. Anyone who finds a disease in the seedbed, such as rickets, anthracnose, and blight, should be sprayed with 30% of the 30% seedlings in the same time (two packs plus one backpack water), and at the same time before transplanting 3- 5 days with 70% chlorothalonil 800 times for the drug to the field. Where the seedbed of the melon horse is found 1500-2000 times for prevention and control.
The main diseases of melon seedlings include rickets, anthracnose and blight; the main pests are melons and horses; therefore, it is hoped that the majority of farmers will be able to control the pests and diseases at the seedling stage to ensure that all seedlings and seedlings are planted. The prevention and control methods for seedling pests and diseases of melon crops are as follows:
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