The sewage produced by pharmaceutical companies is caused by the pollution of many pollutants, such as complex, toxic, harmful and biologically difficult to degrade organic substances, causing serious pollution to water bodies. A.......
1 The fuel supply switch leaks because of the damage of the graphite and asbestos seals at the switch. Exclude: 1.1 Remove the switch, remove the packing, use oil-proof rubber sheet to make two round pads with outer diameter larger than the switch housing hole by 1 mm and inner diameter larger.......
In a long-term operation of vegetable greenhouses, a vegetable farmer in Daeyeong-cho, Tottori Prefecture, Japan has developed a set of properties that use liquid wood vinegar to make it easy to volatilize. The bottle of diluted wood vinegar is suspended in a greenhouse to prevent and control .......
A Japanese company has recently developed a new method of frozen squid processing. In this method, the squid is processed into a special container to remove the decomposing enzymes in the squid and then put into a special mixed liquid containing 42 kinds of enzymes. These enzymes are generally.......
(1) Preparation 1 Select the ear field. The choice of ear canal is crucial for black fungus production. The general principle is multi-light, large areas with high humidity and little bacteria. One is to choose places near water sources, such as beside a river stream, beside a reservoir, or be.......
The seedling fertilizer is mainly composed of organic fertilizers such as composting, livestock fat, cake fertilizer and green manure, and microbial inoculants are added to improve the utilization rate of organic fertilizer. Combined with the applic.......
The diseases of azaleas mainly include root rot, brown spot, black spot, leaf blight, and iron deficiency yellowing.
After suffering from root rot, rhododendrons grew weak, and the leaves were wilting and dry. Water-stained brown fields appeared on the root surface. Severe soft rot.......
Pleurotus ostreatus cultivated in the fungus bag will greatly reduce its yield after 2 to 3 oyster mushrooms, and if the temperature rises, it will also degrade the quality. How do you develop a mushroom that is equal to or even higher than the former mushroom? Here's a simple and practica.......
After Li Shuchao's fruit picking, scientific management can enhance the nutrient reserve of the tree, promote flower bud differentiation, restore tree vigor and enhance the stress resistance of the tree, laying a good foundation for high yield, high quality and high efficiency in the follo.......
According to the report of Science and Technology Daily, Korean research institutes have successfully cultivated genetically modified fluorescent chickens for the first time in the world, making the application of genetically modified eggs in large-scale applications in the food and pharmaceut.......
For more than half a century, antibiotics have played an extremely important role in the aspects of human and animal health, disease prevention, and promotion of human social progress and development. However, with the widespread application and abuse of antibiotics as feed additives, veterina.......