First, promote roots and strong trees. When the green onion enters the hairy stage, the first top dressing should be combined with irrigation, and 20 kg of urea can be applied to the mu, and potassium nitrate or potassium dihydrogen phosphate can be applied. When the green onions enter the period of onion formation, they can be chased twice with fertilizer, with quick-acting nitrogen fertilizer as the main factor, and with phosphorus and potassium fertilizer. Second, the soil. The cultivating soil must be carried out during the formation of scallion, otherwise it will easily cause the plant to rot. When cultivating the soil, it should be gradually thickened according to the age of the seedlings. After the autumn, the soil should be ploughed once every half month, and the soil should be ploughed 3 to 4 times. This is the key measure to increase the length of the scallion. The soil should be carried out in the afternoon when the leaves are soft. Avoid cultivating the leaves when the morning is crisp. The height of the soil should not be buried in the heart, so as not to affect the growth of the green onions. (Generally, the seedlings should be shallower. The soil is thicker and thicker with the increase of the number of soils. The thickness of each soil is preferably to the exit of the top one. The last time the soil should be grasped 15cm above the ground. Do not bury the heart leaves, so as not to affect the growth of green onions and cause roots and plant decay. Third, the prevention of pests and diseases. The high temperature stage is the growth and decay period of the green onion, which is easy to infect diseases, mainly the onion and mildew disease and disease. It is recommended that spraying 1500 times solution of ampicda or 1000 times solution of bis-formylamine or 500 times solution of chlorothalonil in the slow seedling stage, and then adding streptomycin, can effectively prevent fungal and bacterial diseases. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone
The vehicle monitoring system package is a package product that contains various vehicle monitoring equipment and accessories. These packages typically include one or more cameras, a monitor, a video recorder, a set of connecting cables and accessories required for installation. Vehicle monitoring system packages can be used for various vehicles, such as private cars, taxis, trucks, buses, etc.
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Car Vehicle DVR,Fleet Management and Logistics, Tanker Truck System SHENZHEN SANAN TECHNOLOGY CO.,LTD , https://www.sanan-cctv.com
The main function of the vehicle monitoring system package is to provide real-time monitoring and recording functions inside and outside the vehicle. By installing cameras, drivers can observe the conditions inside and outside the vehicle in real time to improve driving safety and prevent emergencies. The video recorder can record the driving process and use it as evidence for investigation and processing after the accident.
Vehicle surveillance system packages usually feature high-definition cameras and displays to ensure clear images. Video recorders usually have large-capacity memory and can store video files for a longer period of time. In addition, some vehicle monitoring system packages also have other functions, such as night vision function, collision sensing function, GPS positioning function, etc.
When purchasing a vehicle monitoring system package, consumers should choose the appropriate product based on their own needs. Generally speaking, higher-priced packages usually have higher picture quality and more features. In addition, consumers should also pay attention to the installation and use methods of the kit to ensure correct installation and normal use.
