SS 2 Second Term Agricultural Science Lesson Note – Weeds and Weed Control

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Subject: Agricultural Science.

Topic: WEEDS AND WEED CONTROL

Content:

1. Meaning of weeds
2. Types of weed
3. Effects of weeds on crops and Economy
4. Characteristic Features of weeds
5. Methods of controlling weeds

Subtopic1: Meaning of weeds:

Weeds are often called volunteer plants because they grow where they are not planted. They are plants which grow where they are not wanted. They can also be defined as”plants out of place”. They are usually unwanted, uninvited quests on farms. Also , their growth  interfere with that of cultivated crops and therefore constitute nuisance to crops, livestock or even man. An edible crop could become a weed if it grows where and when it was not planted, example maize growing on a land where cassava is planted is a weed.

Sub topic 2: Common weeds (common weeds)

Some of the common weeds include:

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