JAMB Agricultural Science Past Questions & Answers - Page 12

Agricultural economics and extension deal with the application of economic methods to optimizing the decisions made by agricultural producers. A common problem in this field is the lack of access to modern technology. This can hinder the efficiency and productivity of agricultural practices. Excessive government regulations, overreliance on chemical inputs, and inadequate market infrastructure can also be challenges in agriculture, but they are not specific to agricultural economics and extension.

Soil is a complex mixture of different components that collectively contribute to its properties and fertility. The main components of soil include sand, silt, clay, organic matter, minerals, water, nutrients, and microorganisms.

Electricity is the most suitable source of power for stationary farm equipment.

The Balami is a breed of sheep. It is one of the domestic sheep found in Africa, particularly in Nigeria. Therefore, the correct answer is 'Sheep'.

The main source of power for substinence agriculture is man. Substinence agriculture involves the production of food on a small scale by a farmer to cater mainly for his family. As a result, the use of machinery is not needed, rathe the farmer relies on man power to achieve everything he needs to carry out on the farm.