(b) co-operate in developing and preserving traditional irrigation systems; (c) improve water harvesting; and (d) adopt and promote the use of environmentally safe methods of land use. catchment management, including rainwater ARTICLE 110 Food Security The Partner States shall: (a) establish a mechanism for exchange of information on demand and supply surpluses and deficits, trade, forecasting and state of food nutrition; (b) harmonise quality and standards of inputs and products including food additives; (c) develop modalities to have timely information on market prices; (d) harmonise food supply, nutrition and food security policies and strategies; (e) initiate and maintain strategic food reserves; and (f) develop marine and inland aquaculture and fish farming. 83