Mungbean would be benefited from green manure application due to moisture retention, which become critical factor during minor season may override the fertility implications.
There is no doubt that the extrems inclination of Meegahakiula and the adjacent regions require increased efforts to maintain and improve its agriculture productivity in an ecologically sustainable way. A similar model could also be applied insteep landscapes in Asia. Latin America or Africa, which are prone to soil erosion and degradation and are farming by smallholders.