It is often accompanied by windy weather after the temperature drop in autumn and winter. It is not conducive to the efficacy of herbicides. It should be applied at a relatively high temperature during sunny days. At this time, the physiological metabolism of weeds is relatively strong, which is beneficial to drugs in vivo. Conduction, good weeding effect. It is difficult to kill weeds when it enters the wintering period, especially herbicides containing isoproturon. When used at low temperatures, it may cause freezing damage to wheat seedlings.
Apply evenly and evenly, strictly control the application concentration to improve the herbicidal effect. Do not arbitrarily reduce the amount of water used to ensure uniform application and prevent phytotoxicity.
Adding nitrogen fertilizer to improve the control effect When applying 2 M 4 chlorine and other drugs in the wheat field, mixing with a proper amount of nitrogen fertilizer such as urea can significantly improve the control effect. The mechanism of action is that urea and other fertilizers can reduce the tension and pH of the herbicide liquid surface and enhance adhesion.
Metallurgical Machinery Bearings
Bearings play an important role in the metallurgical industry, mainly in the following aspects:
1. Equipment operation: The metallurgical industry uses a large number of rotating equipment, such as rolling mills, ovens, cooling equipment, etc., and the normal operation of these equipment is inseparable from the support and guarantee of bearings. Bearings can reduce the friction and wear of equipment, improve the reliability and operation efficiency of equipment.
2. Load bearing: The equipment in the metallurgical industry usually needs to bear heavy loads, and the bearings can bear and distribute these loads to ensure the stable operation of the equipment. For example, in the rolling process, bearings are subjected to high temperatures, high speeds and large loads, which can ensure the normal operation of the rolling mill.
3. Temperature and environmental adaptability: The working environment of the metallurgical industry is usually harsh, such as high temperature, high humidity, corrosive gas, etc., and the bearing needs to have good high temperature resistance, corrosion resistance and other characteristics to adapt to these harsh environments.
4. Energy saving and emission reduction: The optimal design and selection of bearings can reduce energy consumption and emissions, and improve the energy utilization rate of equipment. For example, the use of low-friction bearings and high-efficiency sealing structures can reduce energy consumption and lubricant consumption.
To sum up, bearings in the metallurgical industry not only ensure the normal operation of equipment, but also improve the reliability, stability and energy efficiency of equipment, and play an important supporting role in the development of the metallurgical industry
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