What is the biggest factor restricting China's grain problem today? "Storing grain in" what's the meaning? 　　Speaking of food people all know that it is dependent on the kind of fertilizer, the "three legs" can hold up our dining table, can also restrict our bread and butter. Now look at fat is the most one leg without problems. Invention of chemical fertilizer, the size of grain production is unprecedented in the world, so much so that many scholars believe that, if it is not unfair, unreasonable institutional arrangement and distribution of famine in the world can disappear as smallpox. The leg in China has developed rapidly, not only made for China's food security, enterprise can also exported to all over the world, to help the people there to get rid of hunger. 　　The crops can not do without water. River is one of the best irrigation water, so the earliest agricultural civilization is born with the river; People away from the rivers by building drainage drilling, to form a new irrigation water, agriculture to expand its territory; Later, people developed a way to a less, can get rid of the restriction of water for agriculture. In recent years, Israel's high-tech micro spray irrigation popular Chinese for water saving irrigation is demonstrated. Can give the crops irrigation water from underground, but at the end of the day in heaven. There is no rain and snow, which have a river? In the earth for human kindness enough, in the era of natural agriculture provides a stable climate; Modern agricultural era, people invented water-saving facilities and technology more advanced. Therefore cause great famine and drought rate is smaller and smaller. 　　"Spring a grain of millet, the autumn harvest wan son", no seed harvest is obviously impossible. Wu yue supremacy, goujian bent on revenge, is to use the final stroke of wu to be on "without issue project" - will also steamed food seeds of wu, the results of this year, wu "rejection" of agriculture. No food to eat not only soldiers to fight, and also chaos, wu yue completely conquered. 150 years ago in the Irish famine starved millions of people, the reason is that their staple potato encountered disease, not only leave a healthy kind of potato production is serious. Seed important self-evident, but with the development of science and technology, yuan longping's hybrid rice, or genetically modified (gm) technology in the United States, for the grain production provides super security - both more punch can fight again dozen super seeds. 　　Then we can rest easy? The fact is that we missed the biggest deal -- arable land. No land, where kind of fertilizer as enchanting? There is not enough arable land, water where good harvest? Without health of arable land, where strong kind of fertilizer? The reality is not optimistic. At present, our country badly damaged farmland quality is low, pollution has become a serious challenge. If there is no health, the cultivated land, even if the good crop weather, fat foot zhuang, grain yield and quality can't guarantee. Soil fertility decline and pollution in farmland will become the biggest obstacle to food security in the future. So in food has increased, 10 countries put forward the strategy of "storing grain to the earth", is that will lead us to be sure to focus on the cultivated land quality, agricultural sustainable development. Now we have conditions must also restore, repair, protection of cultivated as a priority. Otherwise, the poor, sick, pollution of arable land cannot be persistent to give us the world's most populous country to provide enough food. 　　Agricultural materials industry as an important industry, the integration of water and land under the strategy of "storing grain on" need to adjust their positioning, only from the past "production" to the quality of "food" and "land health" pay equal attention to. If we are to feed the past historical period is "oxytocin division" of the cultivated land, use is western medicine medicine; So in the future in the new period, we need to do a dietitian, regulate, the arable land, repair maintenance. Only in this way, she was able to rosy refreshed long long provide us rice glycine millet, fruits and vegetables.