Dehydration damage. Due to excessive application of fertilizer, or excessive application of fertilizer, or insufficient soil moisture, fertilization after the fertilization results in a high concentration of fertilizer in the soil, which causes the reverse osmosis of the water in the cells of the crop, resulting in dehydration of the crops, often causing crops to appear wilting, like frosting or boiling water. Like the hot one, the light affects the growth and development of the crop party, and the death of the severe one. For example, if rice seedlings are planted on a dry nursery, when the seedlings are in two leaves, about 2 kilograms of urea will be applied per square meter, reverse osmosis will occur, and roots will be burned. This will cause yellowing of the plants. If no remedial measures are taken in time, it will cause dead seedlings. . Burn-type fertilizer. Some fertilizers, such as ammonium bicarbonate, are used when the temperature is relatively high. They are prone to produce large amounts of ammonia, which inflict crop leaves. Lighter crops have yellow tips on the lower part of the crop, and those with severe crops are dead on the other side of the plant. As mentioned earlier, when applying urea or other quick-acting chemical fertilizers to nursery seedbeds, the agricultural film is covered with dewdrops on the membranes. The dewdrops on the membranes are dripping on the leaves of the seedlings. Leaf spots. Poisonous fertilizers. Some chemical fertilizers such as lime nitrogen, if applied directly, will convert in the soil and produce a toxic substance in the decomposition process that poisons the crop roots. Another example is the application of excessive ammonium sulfate in rice fields, rice roots will become black due to hydrogen sulfide poisoning, causing crop damage and even death. Other fertilizer harm phenomenon. Use urea as a seed fertilizer or seed dressing, because urea is a high concentration of fertilizer, but also contains a certain amount of biuret, after contact with the seeds will affect the germination, and even lose the germination force. In addition, calcium superphosphate seed dressing, if used in excessive amounts, will also affect seed germination. According to the test, soybean seeds soaked with 1% boron fertilizer were sown after 4 hours and they did not germinate at all. Chloride fertilizers can harm bogey crops. In order to prevent the occurrence of fertilizer damage, chemical fertilizers should be applied scientifically. Urea should not be used as a seed fertilizer. The amount of superphosphate seed dressing should not be too much. It is not appropriate to chase chemical fertilizer once. It is best to apply it to water or soil. Ammonium bicarbonate should not be applied at high temperatures, lime nitrogen can not be applied directly, to mix fine soil farmyard manure, carry out stacking tanning, until the toxin disappears.
 Medical Tape
The structure of Protective Clothing, belongs to Disposable Medical Supplies (Ppe Protective Coverall, has the characteristics of anti-penetration, good air permeability, high strength, high resistance to hydrostatic pressure, mainly used in industry, electronics, medical treatment, chemical prevention, anti-bacterial infection Use in other environments
In addition to meeting the wearing requirements of high strength and high wear resistance, there are often differences due to different protection purposes and protection principles. To contemporary new functional materials and composite materials, such as: impact-resistant para-aramid and high-strength and high-modulus polyethylene fiber products, oil-repellent fluorine-containing compounds, radiation-resistant polyimide fibers, antistatic Aggregated acrylic fiber complexed with copper fiber, antibacterial fiber and related deodorant finishing fabric.
Medical Tape,Band Aid Adhesive Bandage,First Aid Bandage,Waterproof Elastic Bandage
Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www1.haloxylonhospital.com