A Japanese professor claims he has found the answer to China's food shortage problem - in the central heartland of Brazil. Dr Kiyoaki Katoh of Japan's Tokiwa University said both Japan and China should co-operate and help Brazil to develop its grain production in Mato Grosso state and in the neighbouring Parana, Minas Gerais, Sao Paulo and Goias regions. Dr Katoh, who spent six months in Brazil last year and recently visited Yunnan province, said he agreed with well-known economist Lester Brown that China would have a food crisis early next century despite efforts by the Government to contain population growth and increase grain output. He said the United States alone could not satisfy China's insatiable grain demands by early next century and American grain traders were likely to be more keen to protect their profits than to feed the Chinese people. He suggested China and Japan look to Brazil, saying the South American country could be the last piece of land on Earth that could supply their needs. 'Japan and China should work together because they are the leaders in Asia,' said Dr Katoh. 'And they alone have the talents and resources.' Specifically, he said Japan and China could help Brazil to build railways and other transport facilities and invest in grain farming there. Japan and China would have to modernise their own seaports and build granaries and related rail facilities. Although the Mekong River Delta in Vietnam could also become a major rice producer, he said supplies there would have to be shared among Asian countries and could not meet China's demands. According to Dr Katoh, Japan's Ooita prefecture is already negotiating with Brazil for co-operation and Japanese Prime Minister Ryutaro Hashimoto had also raised the issue with the Brazilian authorities during his last visit there. The doctor, who specialised in biotechnology and worked for the Food and Agriculture Organisation of the United Nations, said China's claim it could boost its grain production through new technology was not possible. 'There will not be another green revolution. This is not feasible.' He dismissed suggestions that China could feed its people by itself and pointed out the mainland had already surpassed Japan to become the biggest importer of grain this year. In addition, China's breakneck pace of industrialisation meant an inevitable decline in arable land, he said.