Working Document Series Open Access Improving Maize-Beans Yields Through Improved Soil Moisture Storage using Trapezoidal Bunds and Manure in Machakos County-Eastern Kenya B.O. Danga · B.E. Mochoge · G.S. Openda The tremendous increase in population in Kenya has created the need for faster rate of increase in food production. However, more than 80% of Kenya lies in the arid and semi arid lands (ASALs). To mitigate food shortages in such areas, the… RUF-31997 2012 CC BY 4.0 13 May 2014