Theory question 103
Agricultural Ecology(a) List six environmental factors affecting agricultural production in Nigeria.
(b) Explain briefly how five of the factors listed in (a) can affect agricultural production in Nigeria.
Show the model answer
(a) Any six: rainfall; temperature; relative humidity; sunlight; wind; soil (type, pH, fertility); topography; biotic factors (pests, diseases, weeds, micro-organisms)
(b) Any five explained: rainfall decides crops grown and planting time, too much causes erosion and leaching; temperature affects germination, growth and animal comfort; humidity affects transpiration and disease spread; sunlight drives photosynthesis and flowering; wind helps pollination and seed dispersal but causes lodging and erosion; soil fertility and texture decide yield; pests and diseases reduce yield
List six, then explain five clearly.