The current population in China is over 1.3 billion and will reach 1.4 billion soon.Meanwhile,China's arable land is decreasing year by year.Facing such a severe situation of population-growth pressure plus cropla...The current population in China is over 1.3 billion and will reach 1.4 billion soon.Meanwhile,China's arable land is decreasing year by year.Facing such a severe situation of population-growth pressure plus cropland reduction,it is obvious that the only way to solve the food shortage problem is to greatly enhance the yield level of food crops per unit展开更多
文摘The current population in China is over 1.3 billion and will reach 1.4 billion soon.Meanwhile,China's arable land is decreasing year by year.Facing such a severe situation of population-growth pressure plus cropland reduction,it is obvious that the only way to solve the food shortage problem is to greatly enhance the yield level of food crops per unit
