That won't help either. The problem in those areas is local and national corruption. If you bring farming equipment into an impoverished third-world community and teach them how to use it, the local warlord/drug gang just comes in after you've left and steals or destroys the farming equipment.

It's an unfortunate fact of reality that foreign aid, though very well-intentioned, benefits the rulers and generals of corrupt governments more than it benefits their citizens. See "The Dictator's Handbook" by Mesquita and Smith.