Agricultural science is a subject that deals with the planting of crops, rearing of animals as well as the provision of raw materials for industries.Agriculture is derived from two Latin words ‘ager’ (field) and ‘cultūra’ (cultivation or growing). Literally it means field cultivation. Agriculture is as old as the existence of man. It is regarded as the mother of all other occupations. It is the live-blood of the nation’s economy.

Basically, agriculture is of two types. All farmers are not the same. Some are rich while others are poor; some have large areas of land while others have very limited land space. The differences among all farmers help to categorize agriculture into two major types, namely subsistence and commercial agriculture.

Non-Governmental Organizations (NGOs) are bodies set up by private agencies or corporate bodies to develop agriculture all over the globe. These are organizations formed by individuals or group of individuals who run the organization’s affairs without government intervention. They support government projects with their wealth and resources.

The soil is a very important factor for agricultural activity and the survival of man. Soil is the loose weathered material covering the surface of the earth, which supports life. It can also be defined as the outermost part of the earth that is formed from the mixture of minerals and decaying organic matter which extends from the surface down to the limit of biological forces.

Soil is the loose weathered material covering the earth surface which supports the growth of plants and sustains human and animal life.

Power is defined as the energy or force that can be used to do work. It is measured in watts (w) and kilowatts (kw). It is expressed as work done over time taken.

Husbandry is the occupation of a husbandman or farmer. That means husbandry is the cultivation of crops and the rearing of livestock.