@manual{icrisat7755, publisher = {ICRISAT}, organization = {International Crops Research Institute for the Semi-Arid Tropics}, address = {Hyderabad}, year = {1983}, type = {Documentation}, title = {Conservation-effective farming systems for the semi-arid tropics}, author = {S A El-Swaify}, keywords = {RP2042}, url = {http://oar.icrisat.org/7755/}, abstract = {Soil losses by erosion and water losses as uncontrolled runoff have clear and immediate impacts on farm productivity. The interrelationships between erosional losses and productivity are consistent and quantitatively predictable...} }