Lesson Notes By Weeks and Term v4 - JHS 1
CROP PRODUCTION
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CROP PRODUCTION
Download the Lessonotes Mobile Ghana app for faster lesson access on Android and iPhone.
Subject: Science
Class: JHS 1
Term: 1st Term
Week: 9
Grade code: B7.2.3.1.1
Strand code: 2
Sub-strand code: 3
Content standard code: B7.2.3.1
Indicator code: B7.2.3.1.1
Theme: CYCLES
Subtheme: CROP PRODUCTION
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Plants, like humans, need food (nutrients) to grow well. In Ghana, farmers and home gardeners use different nutrient sources such as animal droppings, compost, and chemical fertilisers to improve crop yield. Knowing plant nutrient sources helps learners make good choices for school gardens, backyard farms, and future agricultural work—especially when soils become “tired” after repeated farming.
A. Meaning of Plant Nutrients Plant nutrients are substances plants need for healthy growth and good yield. Plants take nutrients mainly through their roots from the soil (dissolved in water). Examples of important nutrients (not all, but key ones) Nitrogen (N): makes leaves green and supports leafy growth (e.g., cabbage, kontomire). Phosphorus (P): helps root growth and flowering/fruiting. Potassium (K): improves disease resistance and fruit quality (e.g., tomato, pepper). Calcium, Magnesium, Sulphur and trace nutrients like Iron, Zinc are also needed in small amounts.
> Important: The indicator for this lesson focuses on observing and listing nutrient sources (where nutrients come from), not only naming nutrients.
B. Meaning of Plant Nutrient Sources A plant nutrient source is anything that can supply nutrients to plants when added to soil or used around crops.
Plant nutrient sources are grouped into: Organic nutrient sources (from living things or once-living things) Inorganic nutrient sources (manufactured/mined chemical fertilisers)