mechanization on use of household and hired labor. Finally, agricultural mechanization significantly raises the productivity of …

investigate how organic cultivation techniques contribute to productivity of non-subsidized local maize and what to expect from … techniques for estimating impacts. Productivity of local maize-bean, local maize-groundnut and local maize-nkhwana, each combined … with livestock and chemical fertilizer, is shown to be statistically similar to productivity of fertilized maize mono …