A business plan is a written document that shows a biz goals, how to go about it, how to achieve it, the problems & solutions to address, make size, market analysis, products & services, keys to success etc. Unlike feasibility study that on shows how feasible a biz would be & Biz proposal that focuses on quotation, execution, terms&conditions, a biz plan can show if a biz is worthwhile to embark on. Many Agribusiness failed because most farmer failed to have a biz plan. As they say "He who fail to plan, plan to fail" No farmer! No nation.