摘要
Rice is one of the most important staple cereals,feeding over 60%of China’s population and contributes nearly 40%of the national total caloric intake（Cheng et al.2007）.A sustainable increase in rice production is required to meet the demands of increasing population and food consumption（Tilman et al.2011）.
Rice is one of the most important staple cereals,feeding over 60%of China’s population and contributes nearly 40%of the national total caloric intake（Cheng et al.2007）.A sustainable increase in rice production is required to meet the demands of increasing population and food consumption（Tilman et al.2011）.
