(a) State two each of (i) climatic, (ii) biotic and (iii) edaphic factors affecting distribution and production of crops a animals in your country. (b) Stat...
Question 1 Report
(a) State two each of (i) climatic, (ii) biotic and (iii) edaphic factors affecting distribution and production of crops a animals in your country. (b) State three climatic and two soil requirements for optimum production of each of ya and tomatoes.
Answer Details
(a) Factors affecting distribution and production of crops and animals
- (i) Climatic factors: rainfall; temperature (also wind, sunlight, humidity).
- (ii) Biotic factors: pests and diseases; weeds (also pollinators, soil organisms).
- (iii) Edaphic factors: soil texture/structure; soil pH and fertility (also soil moisture and depth).
(b) Climatic and soil requirements for optimum production
Yam
Three climatic requirements:
- High and well-distributed rainfall of about 1000-1500 mm per year.
- Warm temperature of about 25-30°C.
- Adequate sunlight and a fairly long, warm growing season.
Two soil requirements:
- Deep, well-drained, loose loamy or sandy-loam soil.
- Fertile soil rich in organic matter and slightly acidic.
Tomatoes
Three climatic requirements:
- Moderate rainfall and warm temperature of about 20-27°C.
- Adequate bright sunshine.
- Relatively low humidity to reduce disease incidence.
Two soil requirements:
- Well-drained, fertile loamy soil rich in organic matter.
- Slightly acidic soil with a pH of about 6-7.
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