The increase in population which exceeded 7 billion people creates an alarming situation in food security. Also, the land can't expand to produce more food with the hard environment and climatic changes. So, we must use the available resources efficiently. A tremendous amounts of agro & agro - industrial wastes like cereal straws, saw dust and others are accumulated every year which usually caused a sever environmental pollution when burnet or left rotten. Mushrooms can make a substantial solve to meet the serious food deficit and environment conservation. A great of cheap or worthless...