Agricultural activity could be described as the science, art and business of
cultivating soil, producing crops and raising livestock (1.1). Even though agriculture
activity is seen as uninteresting, low income and productivity of economic activity,
but the contribution from this activity cannot be neglected especially in matters
concerning food security. For example, in China, having only 7% of the world’s total
cultivated farmland, could support about 20% of the world’s population’s needs (1.2).
Moreover, agricultural sectors are also playing a role as a major economic
contributor in several countries. In South Africa for instance, agricultural sectors
provided 60% of employment opportunities and generated 27% of gross national
product (GDP) in 2001 (1.3). That same year, about 80% of Nepal’s people were
involved in agricultural economic activities yet contributed to about 40% of its GDP
(1.4), (1.5). For Nigeria, contribution of agricultural against its GDP has been shown
increment pattern from about 51 % on 1970 to about 65 % on 2010 (1.6). Even for
USA, at New York State alone, agricultural contribute about USD 53,719 million to
economic output with about 206,604 on employment contribution
