The early autumn vegetable growth is in the summer and autumn, and various pests and diseases are intertwined, which has a great impact on the high quality and high yield of rapeseed. The growth period of the cabbage is short, and the requirements for the use of pesticides are more stringent. High-efficiency, low-residue pesticides must be selected, and the application time must be controlled during the bud period. Chemical control technology for major pests and diseases : The main disease prevention and control prevention and treatment of early autumn vegetables, anthracnose, downy mildew, soft rot, currently has good effect and can be used 7 days before harvest: 1 initial stage of downy mildew with 72% gram of dew per acre (cream urea manganese) Zinc) 700 times liquid 50 kg spray, once every 7 days, 2 times in a row; 2 at the beginning of the anthrax disease, 80% anthrax Fumex 500 times solution or 75% methyl thiophanate 600 times solution 50 kg spray per acre, every 7 1 time, 2 times in a row; 3) 72% streptomycin 3000 times per acre in the initial stage of soft rot, or 77% can kill 600 times liquid 50 kg spray, once every 7 days, 2 times in succession. The main pest control and prevention of early autumn vegetable mites pests should generally be applied in the early stages of harm. 1 Plutella xylostella is sprayed with 1.8% Ainochrome (or 1.8% Fuding, 1.8% harmful extinction) 3000 times liquid 50 kg per acre; 2 Cabbage insects are sprayed with 50 kg of 500 times solution of Bacillus thuringiensis (BT) per acre; 3 locusts are sprayed with 50% anti-Poly 2000 times liquid per acre 50 kg; 4 night moth larvae treat both cabbage worms and aphids, killing 3000-6000 times liquid per acre with 20% speed, or 2.5% cyhalothrin 2000 50 kg spray of double liquid; 5 jumping armor also treats beet armyworm larvae, aphids, killing 1500 times solution with 2.5% enemy per acre, or spray 50 kg of high-efficiency cypermethrin 4000 times solution. Note that pesticides should be used alternately during the growth of the rapeseed. Each pesticide should be used at most once, and the drug should be stopped more than 15 days before harvesting.
Advertisement lighting is a special lighting solution used to highlight and illuminate advertising media such as billboards, light boxes, signboards, in order to attract people's attention and effectively convey advertising information.
Billboard lighting uses LED technology as a light source, LED with high brightness, high energy efficiency, long life and other advantages. By precisely controlling the brightness and color temperature of the LED, rich colors and visual effects can be presented, thus making the advertisement more vivid and attractive.
In advertising display lights, lighting layout is very important. Generally, according to the shape and size of the advertising media, as well as the importance and key points of the advertising content, the design of a suitable lighting scheme. Through the distribution and angle setting of the lamps, it can ensure that the entire advertisement is evenly illuminated, avoiding dark or over-exposed areas, so as to improve the visibility and recognition of the advertisement.
In addition, outdoor advertising lighting can also be applied to some special effects, such as flashing, changing colors, gradients, etc., to attract attention and increase interest. The choice of these effects usually depends on the theme of the AD and the goal of the campaign.
Advertising sign lighting is widely used in commercial environments, including shopping malls, shops, roads, subway stations and so on. It can not only attract the attention of consumers, increase brand exposure and sales opportunities, but also create a unique urban landscape at night to enhance the beauty and vitality of the city.
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