State two methods farmers adopt to control rodents on the farm.
(ii)
Give one way in which each of the following factors is of importance when selecting a site
for lettuce cultivation:
(α)
type of soil;
(β)
accessibility to site;
(γ)
topography.
Show Solution
(i)
Methods farmers adopt to control rodents on the farm
1. Trapping
2. Use of rodenticides as baits
3. Erection of physical barriers e.g. fencing/sealing entrance with rodent-proof structures
4. Use of predators e.g. dogs, cats/Biological control
5. Good farm sanitation/maintenance/mowing to keep grass short
6. Shooting/killing
7. Remove food/nesting material/water sources
(ii)
Importance of factors when selecting a site for lettuce cultivation
(α)
Type of soil
1. Fertility of soil
2. Water holding capacity
3. Variety/type of lettuce to cultivate
4. Ease of resistance to erosion/leaching/soil structure
(β)
Accessibility to site
1. Ease of getting to site
2. Time taken to get to site
(γ)
Topography
1. Incidence of soil erosion
2. Ease of use of farm machinery on land