Abstract:

The output of rice straw is the largest among the crops in China. This paper estimated the outputs of rice straw in China as well as in each province by conducting particularly sorted researches on the ratios of straw to grain of rice, used the statistic of rice yield. The results showed that the ratios of straw to grain of early rice and middle-late rice were 0.68 and 1.00, separately, and the rice straw output of the whole China amounted to 184430400 tons in 2009. In the end, the ways of rice straw utilization were advised, including returning the straw with quick decomposition to fields, potato planting with straw mulching and no-tillage, livestock breeding with micro-storage rice straw, and edible fungi cultivating with rice straw.