Safety Measures in Applying Chemicals

Back to: Agricultural Science Primary 4

 

Welcome to class! 

In today’s class, we will be talking about safety measures in applying chemicals. Enjoy the class!

Safety measures in applying chemicals

In the last lesson, it was established that pesticides and herbicides are important materials required for crop production. However, like every other thing, there are consequences when too much of it is applied.

A moderate quantity of chemical must be used on plants. If used in excess, it may cause the following problems:

1. Destruction of the soil structure.
2. Destruction of soil organisms.
3. Pollution of the environment.
4. Death of animals in nearby streams and rivers.
5. Death of animals in the streams results in air pollution.

Activity

1. Remember and state the benefits of pesticides and herbicides to plants from the last lesson.
2. What happens to crop plants if pests and weeds are not controlled or gotten rid of.

Safety measures to be taken while applying chemicals

1. Do not use your hands to mix chemicals.
2. Use knapsack sprayer and other spraying equipment to spray.
3. Wear protective clothing like gloves, goggles, and masks.
4. Do not use your mouth to blow the nozzle of the sprayer when it is blocked.
5. Do not use your mouth or teeth to open a chemical bottle.
6. Do not eat, drink, or smoke while working with pesticides.
7. Observe the wind direction when spraying.
8. After applying pesticides, always take a thorough bath or shower to clean your body
9. If you notice any symptoms like headache or if you do not feel well after working with chemicals, see a doctor immediately
10. Never reuse an empty pesticide or herbicide container for any purpose.

General evaluation

1. Mention some protective gears to wear when applying pesticides or herbicides
2. Write four consequences of applying excess chemicals to plants

Weekend assignment

1. Excess chemicals will affect the following except ———   a) Soil   b) Chemical container   c) stream around
2. Death of animals in the streams results in ——— a) land pollution b) cleaner water c) air pollution.
3. We can use our hands to mix the chemicals. True or False
4. Used pesticides containers cannot be reused, True or  False

Theory

1. Mention six precautions that should be taken when applying chemicals to farm crops

 

In our next class, we will be talking about Dangers Involved in Excessive Use of Chemicals.  We hope you enjoyed the class.

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