Where is the way out for 886 million tons of straw wastes?
The term “straw” refers to the residues of crops discarded after harvesting the seeds, like stems, leaves, stalks, shells, alfalfa and ear. Rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matters, straw is a kind of multi-purpose renewable biological resource and a kind of new energy with the highest potential of development and utilization and has good economic, ecological and social benefits.
2019/03/28