Page 251 - Agriculture_Form_3
P. 251
Agriculture for Secondary Schools
Milk yield Nutrient management
the amount of milk produced by a the practice of adding Fertilisers and
cow other soil additives to ensure crops
receive the proper nutrients they need
Milling to grow healthy and strong
grinding grains into flour
FOR ONLINE READING ONLY
Oestrus
Minerals a period of sexual receptivity of
natural nutrients found in soil, feed female mammals during which
or fertilisers that help animals and ovulation takes place
plants grow strong and healthy
Open-Pollinated Varieties (OPV)
Moisture retention (for soil) in maize production refer to maize
the ability of soil to hold water varieties that reproduce naturally
through cross-pollination by wind or
Mulching
covering the soil with materials such insects. Unlike hybrids, OPVs allow
farmers to save seeds for replanting
as grass, leaves or straw, to conserve
moisture, suppress weeds and regulate while maintaining genetic diversity
soil temperature Organic manure
Neem Natural fertiliser derived from
decomposed plant and animal
a natural plant whose leaves and oil
can be used to protect crops from materials, such as compost, farmyard
manure, or green manure, used to
insect pests
improve soil fertility
Nitrogen fixation Parturition
a natural process where legumes
take nitrogen from the air and make the act of giving birth in mammals
it available to the soil Pasteurisation
Nose-ringing the process of heating milk to kill
harmful germs without changing its
placing a ring in a bull’s nose to make
handling safer and easier, usually taste
done when the bull is 15 to 18 months Pea weevil
old a pest that damages peas by laying
eggs on pods; the larvae eat the seeds
NPK fertiliser
a type of Fertiliser containing nitrogen inside
(N), phosphorus (P), and potassium Pest
(K) to help plants grow well an insect or animal that damages
crops
Nutrient deficiency
lack of essential nutrients in the soil Pneumonia
or plants a form of serious respiratory illness
that affects the lungs, characterised
242 Student’s Book Form Three
17/09/2025 14:12
AGRICULTURE F3.indd 242
AGRICULTURE F3.indd 242 17/09/2025 14:12

