In recent years, the degree of self-sufficiency in grain of our nation is about 95﹪. Our grain yield is about 500 million tons a year. The demand of grain of 65 million people among 1.3 billion of the population in China needs to be imported abroad. We have to make Chinese degree of self-sufficiency in grain above 100﹪ and our ability of production in grain must reach above 1 billion tons or 1.5 billion tons even 2 billion tons.
My suggestion is that from now on we should make enough preparation for labor power and materials and financial capital as well as technology. From 2020 China will carry out a unprecedented and super huge project since the beginning of human history which should may be called “Artificial Soil Project-200”(ASP-200).The whole project will last for 200 years and total investment will be 200 trillion Yuan with 1 trillion Yuan each year. At least 200 million of labor power will be needed to join in the project and 10 million mu of artificial cultivated land will be made each year. In 200 years our nation will have made 2 billion mu of artificial cultivated land and adding our existing 2 billion mu of natural cultivated land（I don’t say 1.6 or 1.8 billion mu of natural cultivated land ）, out country will have 4 billion mu of cultivated land .According to this calculation, by 2050 we will get 300 million mu of artificial cultivated land .Producing grain 500㎏ per mu a year, newly increased grain production ability of 300 million mu of artificial cultivated land will be 150 million tons of grain . Our present grain production ability is about 500 million tons and adding together it will be 650 million tons of grain .If the minimum per capita consumption of grain a year is 400 ㎏ which is universalized in the world, 1.5 billion of Chinese population need to consume 600 million tons of grain. At that moment our nation will be more than self-sufficient in grain, which means that relying on one's own efforts we will primarily solve the food problem in China. By 2200 2 billion mu of artificial cultivated land will have been made and our nation will reach 4 billion mu of cultivated land. Theoretically our total grain yield will reach 1.5-2.0 billion tons a year. Only by that time can I say that Chinese food problem will be solved completely.