"Pest treatment with fertilizer" is to achieve the purpose of killing crop pests by fertilization. This is the second new method of pest control and pest control promoted in recent years. This method can not only control insects and insects, but also has fertilization efficiency, and does not kill natural enemies of insects, and does not pollute the environment. The specific practices are as follows:
Phosphate fertilizer kills insects. Helicoverpa armigera is most afraid of phosphorus in the egg stage, and immediately sees phosphorus to escape. According to this feature, available 2% superphosphate leaching solution, for spraying cotton, row 5, line 1 leaving no ejection, driving bollworm spawn every concentration, and then concentrated disinfestation. Another characteristic of Helicoverpa armigera is that when an acid is secreted from cotton, it is clustered to lay eggs. At this time, if it is sprayed with 2 % superphosphate solution, it will chemically react with oxalic acid and folic acid secreted by cotton, which will make the eggs of cotton bollworm hard, so that the cotton bollworm larvae can not break the shell and die, thus achieving harm reduction. purpose.
Nitrogen kills insects. Extra-root spray is applied when the pest occurs with a 2 % urea solution, or a 1 % ammonium bicarbonate solution, or a 0.5 % aqueous ammonia solution. Because these three kinds of nitrogen fertilizers have strong volatility, they have certain fumigation and corrosive effects on pests, especially for controlling small insects with small body shape and weak endurance, such as red spider, leafhopper and thrips.
Silicon calcium fertilizer kills insects. Silicon-calcium fertilizer is a new type of chemical fertilizer. When the crop is fertilized, it is incorporated into the silicon fertilizer. After the crop is absorbed, the silicon will accumulate in the epidermal cells of the crop to form a hard defense ability. Practice has proved that corn, sorghum, soybeans, kidney beans and other acres of application of silicon calcium fertilizer 20 kg, can avoid the damage of corn mash and beans. In rice, wheat and other crops, per acre with 20 - 30 kg calcium fertilizer, can greatly reduce the hazard armyworm.
Grass ash kills insects. Use 10 kg of grass ash to water 50 kg, soak for one night and take the filtrate spray, which can effectively control the aphids on fruit trees, crops and flowers, and can add potassium fertilizer, enhance the lodging resistance of crops and the wind resistance of flowers and young fruit trees. . For example, adding appropriate amount of trichlorfon in the ash of the grass can enhance the contact and fumigation effects of the liquid, and improve the killing ability of the pests such as aphids and red spiders. Also control seed corn maggots, onion fly maggots, control efficiency up to 90%, crop yield could generally 15--20%. Flowers such as rose, rhododendron, and oleander, etc., can also be controlled by plant ash if they are harmed by aphids.
Urine wash mixture to kill insects. Mu 250--500 Ke urea, plus 100 grams of washing powder, watered 50 kg, made "mixture of urine wash" spray the mixture, stir, can prevent crops, vegetables and apple spider mites, aphids and other pests, not only pollution-free, It also has topdressing efficiency.
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Commercial lighting is a term used to describe lighting that is used in commercial spaces, including auto dealerships, distribution centers, churches, factories, offices, and warehouses. Unlike residential lighting, commercial lighting is made to withstand more abuse and has a longer lifespan.
While the focus of residential lighting is often on aesthetics, commercial lighting is task orientated. Commercial lighting systems are designed based on what the application is. For example, in an office-type setting, you may see task lighting, which illuminates specific areas where employees need concentrated light to be able to perform their jobs.
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