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The causes of common drug damage and prevention measures are

The causes of common drug damage and prevention measures are

2026-09-20 15:37
1 answer

The common causes of drug damage were as follows: 1. ** Potion-related factors ** - The quality of the drug itself: the products of small manufacturers contain impurities and invisible ingredients, which are easy to cause harm when mixed. - Pharmaceutical dosage form problems: such as poor stability of the cream, easy layering, settling, separation of crystals; wetting powder and gel suspension agent suspension rate reduced; high water content of the powder will cause harm. - Pesticide ingredients are harmful to crops: for example, diclofenapyr is sensitive to melons, and some oil cream preparations contain chemicals that can pollute the surface of the fruit during the young fruit period, causing harm. - Inappropriate pesticide mixing: too many types of mixing will cause the concentration to be too high, or incorrect mixing (for example, most acidic chemicals cannot be mixed with blue meteorite and copper sulfuric acid) will increase the risk of toxicity. 2. ** Climatic conditions ** - Low temperature spraying could easily cause harm. - Spray in high temperature in summer is easy to cause harm, which accounts for more than 80% of the whole year. Spray after rain, when the humidity is high at night, and when there are water droplets on the fruit surface, it is easy to cause harm. 3. ** Operation related factors ** - If sprayed unevenly, heavily sprayed, and sprayed too much, it would cause harm. - Wrong or not clean enough spraying equipment: For example, it is not suitable to use large-scale high-pressure equipment to spray pesticide on crops such as corn and wheat; spraying sensitive crops with equipment that has been used for weeding will cause harm. - [Too much dosage: exceeding the safety limit of the crop will easily lead to harm.] - The user has low education level, little knowledge of pesticide, careless and blind medication: For example, the wrong type of pesticide was selected (improper use of fenthiuron and profenophorate in Crucifer vegetables), the concentration and dosage were inappropriate (the concentration was too high and the dosage was too large), the pesticide was used in sensitive crops or during the sensitive growth period of crops (organic phosphorus pesticide was used in sorghums, fluazuron was used in Crucifer seedlings, etc.), and the method was inappropriate (misused or mixed pesticide, adverse reaction of drug compound, drug floating in the wind or soil residue, incomplete cleaning of sprayers). - Spray in windy days caused the pesticide to drift to sensitive crops. For example, when 2,4- D was applied to wheat fields, it would cause damage to nearby fruit trees, vegetables, and cotton crops. - Spray equipment that has been used with the weeding agent is not thoroughly cleaned, and spraying other sensitive crops will cause harm. - Pesticide residue in the soil and its decomposed products cause harm. 4. ** Crops themselves ** - Different crops have different resistance to drugs. If the drugs are not used reasonably according to the species and growth period of the crops, it will cause harm. - When the soil conditions are not suitable (too dry or too wet, high temperature and high humidity, too high ph and stickiness, etc.), it is easy to cause harm. - Poor soil, low organic matter content, weak growth potential of crops, poor drug resistance, resulting in chemical damage. The prevention measures are as follows: 1. ** Protective measures ** - Fully understand the nature of the medicine, strictly control the dosage and concentration, choose the correct time and method of use, understand the precautions of the medicine, and do not arbitrarily increase the dosage and frequency. - Understand the quality of the medicine and avoid using problematic medicine. - He had to improve his application techniques and pay attention to the preparation method. - Master the types of crops and the characteristics of different growth periods, and select suitable varieties and doses. - Pay attention to the environmental conditions when applying the medicine (temperature higher than 30°C, strong sunlight, relative humidity lower than 50%, wind speed higher than level 3, rainy days or when there is a lot of dew, do not spray the medicine). - Pay attention to the adaptability of the crops when mixing the pesticide, and reduce the amount of residual pesticide after mixing. - Pesticide that has not been used locally should be tested on a small area before use. - Do not use unlabeled, non-production license, non-trademark, and unapproved and registered pesticide. 2. ** Remedy ** - Spray the medicine. - It was timely ventilation. - Topdressing and removing seedlings. - Water and expel toxins. - Remove the affected area. - Use plant growth regulator. - When the harm is not serious, spray water to rinse the crops, increase the application of quick-acting fertilizers, strengthen farmland management, apply plant growth regulator and antidote, and other measures can be taken; when the harm is serious, under the premise of considering the secondary harm, timely supplement or replant. 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