annually from 90 million to 100 million during this period and the world population will reach to 8050 million by 2020 from 5300 million in 1990. The population in the developing countries will increase at the annual rate of 1.7 % from 4080 million to 6660 million during the some period. Population in Asia will increase at the annual rate of 1.64 % from 2900 million to 4500 million. The world population will double to 10,000 million by 2050. Grains (rice, wheat, barley, rye, corn, oats, sorghum and millets) will be the main source of the necessary calorie intake for the exploding global population and will be providing most of the calorie intake by the people in the developing countries which is 80% of the world total population in early 21st century. 31) The grain supply must rapidly increase during the period from 1990 to 2020 if it is to cope with the future explosion in the demand for grains caused by the population explosion and the fast economic growth in the developing countries and Asia.
Grain demand increases because of the increase in income as well as the population explosion. When per capita income increases in the developing countries, the immediate result is an increase in grain demand as food. An increase in the importance of animal protein in food consumption pattern as the developing countries grow, leads to increased demand for feed grains for the animals. According to World Bank statistics, 32) the per capita GNP in Asian developing countries has grown significantly, at annual rates of 3.0% to 6.4% during 1980 and 1993, compared to other developing countries who have experienced negative growth during the some period. The average per capita GNP growth throughout all developing countries was approximately 1% per year during the period from 1980 to 1993. The total GNP has grown at around 3.5% per year. This rapid per capita income increase, especially in Asia, brought significant increase in the demand for grains which is the staple diet of the people in the developing countries, and also rapid increase in the demand for animal protein in Asia, especially in China, resulting in explosive increase in the demand for feed grains.
Let's now investigate the actual situation for the rapid increase in grain demand within China. China has 22% of the world total population in 1990,
