China is the world's second electricity using country. The electricity generation has reached to 2.187 trillion KWh in 2004. Whereas China has the great potential of developing generating electricity by renewable energy ， at the moment, electricity generated by Fire Electric Power with coal-burning accounts for 81% of the whole electricity generation. And the Hydroelectric Power accounts for 15%, while the Nuclear Electric Power accounts for 2.29%. The sustainable development of national economy relies on the continuously energy supplying, which needs the study of developing new energy and renewable energy.

The specialists figure that superfluous chemical nitrogenous fertilizer can lead to the persisting increase content of sodium nitrate and sodium selenite in vegetables. It is sure that organic fertilizer will partly and gradually substitutes chemical fertilizer. Further more, since this kind of organic fertilizer is produced under high temperature by fermentation, insect eggs and virus has been fully killed. Thus the plant diseases and insect pets, which may bring out by directly using manure, can be reduced. Reducing or stopping using the pesticide to produce green food may highly improve the benefit of the farmers using organic fertilizer.