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With the arrival of winter, farmers have significantly reduced their use of pesticides. The remaining stock and those to be used next year are now entering the storage phase. To maintain the effectiveness and safety of these chemicals, it is crucial to follow eight important storage guidelines:
1. **Prevent Volatility**: Most pesticides are volatile, so proper sealing is essential during storage. This helps prevent evaporation, which can reduce efficacy, pollute the environment, and pose health risks.
2. **Prevent Accidents**: Pesticides are toxic and must be stored carefully. Key points include: storing them in a locked cabinet or wooden box with clear labels; avoiding storage near food, grain, or animal feed; keeping them away from flammable materials like gasoline or fireworks; and ensuring they are out of reach of children to prevent accidental exposure.
3. **Maintain Labels and Instructions**: Farmers should always keep the original labels and usage instructions when purchasing pesticides. Any small quantities removed should also be clearly labeled. If labels are missing or damaged, they should be rewritten with the pesticide name, dosage, usage, expiration date, and application area before being stored.
4. **Prevent Deterioration**: Pesticides should be stored separately, as mixing them with alkaline substances or compounds like ammonium bicarbonate or ammonium nitrate can cause chemical reactions that reduce their effectiveness or even create hazards.
5. **Avoid Moisture**: Store pesticides in dry conditions, with humidity below 75%. Moisture can degrade the quality of the product and lead to spoilage.
6. **Control Temperature**: High temperatures can cause pesticides to melt, decompose, or even explode. Liquid pesticides may freeze in cold weather, leading to blockage or container damage. Ideal storage conditions are cool, dry, and well-ventilated, with temperatures not exceeding 35°C. In colder climates, insulation methods such as using straw, clamshells, or old blankets can help prevent freezing.
7. **Protect from Light**: Many pesticides, especially those in brown bottles, are sensitive to light. Exposure to sunlight can cause decomposition and reduce effectiveness. For example, emulsifiable concentrates may lose their emulsifying properties if exposed to light for long periods. Always store them in dark or shaded areas.
8. **Prevent Environmental Pollution**: Unused or expired pesticides should never be disposed of in fields, water sources, or wells. Instead, they should be buried deeply to avoid contaminating the environment and harming ecosystems.
Author: Yang Jinrong
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