conservation farming - maize crop zambia conservation farming is now a major environment & food production project in zambia. though not new globally it is new to africa. cf is a low technology, minimum tillage, crop rotation, land enhancing and land conservation system resulting in higher yeilds, low fertilizer use, no land degradment and therefore no ned for migrgation and newly deforested areas. date: 08.12.2008 ref: zb1069_125948_0021 compulsory credit: woodfall wild images/photoshot