The Use Of Farm Chemicals
Muhtasari
The chemicals that protect crops, herbicides, insecticides and fungicides, are powerful poisons. The very property that makes them kill weeds, pests and diseases also makes them dangerous to the farmer, to people nearby, to livestock and to the environment. Used carelessly they can poison the user, contaminate food and pollute rivers; used carefully they are safe and effective.
In this lesson you will learn how to handle farm chemicals safely from start to finish: the protective clothing to wear, how to dilute and mix correctly, the precautions to take before, during and after spraying, and how to clean equipment without polluting water. You will also learn why chemicals must be stored in a locked, well-ventilated store, kept in their labelled containers, and why toxic and flammable products need special care.
Malengo
- (a) explain the importance and methods of safe handling of farm chemicals, including the use of specifically designed protective clothing, correct dilution and mixing, precautions before, during and after application and avoidance of pollution when cleaning spraying equipment.
- (b) explain the importance of safe storage of farm chemicals to include chemicals that are toxic, (e.g. herbicides, insecticides and flammable, e.g. fuels).
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Hongera kwa kukamilisha somo la The Use Of Farm Chemicals. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which item of protective clothing protects the user from breathing in spray? A. Rubber boots B. A face mask or respirator C. Overalls D. Gloves Answer: B
- A pesticide label says 20 mL per 10 L of water. How much concentrate is needed for a 10 L sprayer? A. 10 mL B. 20 mL C. 40 mL D. 200 mL Answer: B
- Why should a farmer not spray a pesticide into the wind? A. It saves chemical B. The spray may blow back onto the user or drift onto other areas C. It makes the spray stronger D. It is required by the label only Answer: B
- Farm chemicals should be stored in a store that is: A. Open and warm B. Locked, cool, dry and well-ventilated C. In the kitchen D. Next to the drinking water Answer: B
- Why should a sprayer not be washed out in a stream? A. It wastes water B. The rinsings contain chemical that would pollute the water C. It damages the sprayer D. Streams are too cold Answer: B
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