(a) What is Land Tenure System
(b) Define Weed
(c) Discuss Groundnut rosette disease under the following sub-headings.
(i) Causal organism (ii) Mode of transmission (iii) Symptoms (iv) Control
(d) List the characteristics of the following factors of production (i) Land (ii) Capital
Explanation
(a) Explanation of land tenure system It refers to the system of land ownership/ acquisition by individuals or groups for temporary or permanent use plant.
(b) Definition of weed A weed is any plant found growing in a place where it is not wanted/desired. It is an unwanted plant.
(c) Discussion of groundnut rosette disease
(i) Causal organism
-Virus
(ii) Mode of transmission
– By insect vector called aphid
(iii) Symptoms
– Stunted growth
– Leaves turn yellow with mosaic of mottling
– Leaves become closely packed and curled
(iv) Control
-Early planting
– Plant resistant verities
– Uproot and burn infected plants
– Use insecticide to kill aphids
– Practise close spacing
(d) Characteristics of factors of production
(i) Land
– Immobile/fixed in supply
– Subject to the law of diminishing returns
– Its reward is rent It is a fixed asset
– Its value is based on its location its unit is acres/hectares It is a free gift of nature
– It is heterogeneous in nature It appreciates/depreciates over time.
(ii) Capital
– It takes different forms, e.g. machinery and agro-chemicals
– It can depreciate/appreciate over time – It could be fixed or working capital
– The reward of capital is interest – It is man-made and is accumulated over time.
– It can be used to acquire other factors, e.g. land and labour.