Credit: Monde Kingsley Nfor/IPSYAOUND??, Aug 30 2012 (IPS) - Cameroonian urban famer Juliana Numfor has six plots of land where she grows maize, cassava, sweet potatoes and leafy vegetables, including cabbages, wild okra and greens.The soil in which her crops grow is moist and visibly marshy, and a stream of water runs near it.