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Agriculture for Secondary Schools
to the mouth for grinding into finer Selective harvesting
particles picking only matured plant parts
from the plant while leaving others
Resistant variety to continue growing
a crop type that can survive or fight
off certain pests or diseases Shoot fly
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a pest that attacks young sorghum
Rhizobium plants and makes their central shoots
helpful bacteria that live in legume dry out
roots and help fix nitrogen from the
air Silage
a fermented, moist animal feed made
Row planting from green crops, e.g., maize, forage
a sowing method where seeds are sorghum, grass or legumes, and
planted in straight lines stored in airtight conditions to keep
Rubber ring method (castration) it fresh and nutritious for livestock,
especially during dry seasons
a way to castrate young animals by
putting a tight rubber ring around Silking
the testicles to stop blood flow until a stage when the silk strands (styles)
they fall off emerge from the ear shoot of the maize
plant. The silks are the elongated
Sap
the liquid inside plant tissues (e.g., styles of the female flowers, each
connected to a potential kernel on
stems and leaves) that carries nutrients
the cob. This stage is crucial for
Scarecrow pollination and grain development
a human-like figure placed in the field
to scare away birds from eating crops Silo
a pit in the ground, a bunker, a tower,
such as cereals
an airtight-covered heap or wrapped
Seed distributor bale where silage is made and stored;
a business or person who sells seeds it also means a large round tower on
to farmers a farm for storing grains
Seed rate Site selection
the amount of seed used per hectare the process of choosing the best
during planting location to plant crops by looking
at important factors such as soil
Seed varieties quality, sunlight, water drainage, and
different types or kinds of seeds or other environmental conditions; this
vegetative planting materials that helps the crops to grow well and get
have specific characteristics, such as the right nutrients, water, and other
higher resistance to pests or diseases, environmental conditions they need
improved yield, or better tolerance to to be healthy
weather conditions
244 Student’s Book Form Three
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AGRICULTURE F3.indd 244
AGRICULTURE F3.indd 244 17/09/2025 14:12
