FOOD security is a main cornerstone of national security and development.In China,it’s a top priority for the government.By dramatically increasing grain production and modernizing the food industry,China has secured the baseline of enjoying grain self-sufficiency.Producing a quarter of the world’s grain output with less than 10 percent of the world’s arable land,and feeding one fifth of the world’s population,China has made a historic achievement with far-reaching impact on food security worldwide.