First of all, you should try to choose a relatively cool weather to spray pesticides, or choose to do it in the morning and evening, do not spray at noon and windy. Do not spray pesticides for more than 3 hours, and rest in the middle.
Secondly, the preparation of pesticides should not increase the concentration of the liquid at will, and select medium and low toxicity pesticides. Do not mix pesticides at will to avoid toxicity. When formulating pesticides, do not directly stir by hand, and stir the sticks to avoid the harm of pesticides through human skin.
Third, it is necessary to strengthen personal protection. Do not wear shirts and bare feet. Wear anti-virus masks, safety glasses, long pants and long boots. During the spraying process, pay attention to not smoking, not drinking water, not eating, and rubbing your mouth without rubbing your hands. When spraying pesticides, you should stand in the upwind direction and reverse the spraying in order, so as to avoid pesticide splashing into the eyes or inhaling the nose and mouth. After the work is finished, wash your hands and face with soapy water or alkaline water, rinse your mouth with water, and take a shower to change clothes.
Fourth, in the field where pesticides have been sprayed, warning signs should be inserted, and livestock and poultry should be prohibited within 5 to 7 days to prevent human and animal poisoning. Crops that have been sprayed with pesticides are not listed for at least 5 days.
Fifth, if symptoms such as headache, dizziness, chest tightness, nausea, vomiting, etc., stop spraying immediately, leave the scene, rest in a place with fresh air, rinse mouth with water, and wash exposed parts such as hands and face. If you do not see improvement, you should go to the hospital for treatment.
Microscope Slides And Cover Slips
1. The glass slide is used to put the sample to be tested, and the cover glass is covered on the sample to be tested.
2. The glass slide is at the bottom, which is the carrier for the material you want to observe, that is, you want to put something on it.
3. The cover glass is smaller than the slide glass. The glass slide is mainly used to hold the observation objects. The cover glass is covered on the slide glass and used for fixing.
4. The glass slide is a thicker piece of glass in the transfer slide, which is used to carry the real object. The cover fragment is the small round or square thin one.
5. Mounting is a general term for a set of things, including slides, coverslips and loaded objects
6. The cover glass is square, the slide glass is rectangular, and the width is longer than the side of the cover glass.
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