Floating rafts production draws international interest

摘要

The system has a high production output of about 3.5 times that of greenhouse lettuce grown in soil, or 14 times the rate of production of traditional soil farming. Nineteen crops can be produced each year. The biggest and most productive hydroponic lettuce grower in the world is no overnight sensation. HydroSerre Mirabel Inc. of Quebec is a 50,000-square-metre operation near Montreal that produces 10-million heads of lettuce each year. Luc Desrochers, president of HydroSerre, outlined the com- viable. "Now after 15 years and 75-million heads of lettuce," said Desrochers, "we're starting to feel comfortable."