Water savings have ranged between 25 and 50 per cent, input cost savings per hectare are estimated to be 23 per cent, due mainly to the use of fewer agrochemicals, and farmers' incomes have increased substantially. However, the involvement of formal research institutions has been more marginal, with some positive experiences in China and Indonesia. The Governments of Cambodia, China, India, Indonesia and Viet Nam have endorsed these innovations and included them as part of their national strategies for food security (Africare, Oxfam America and WWF-ICRISAT Project, 2010, p. 3).