However, the governing Conservatives and the Liberals have both backed the idea, arguing that only a small portion of food crops such as corn will be used to make the biofuel.

The bill must now be approved by the Senate, where passage is likely since it is dominated by the Liberal Party.

The legislation would create demand for an estimated 2 billion litres of ethanol and 600 million litres of biodiesel.

Canada has 16 ethanol plants built or under construction, according to industry data, with a total capacity of 1.6 billion litres produced from corn and wheat.

There are currently three biodiesel plants with a combined capacity of 97 million litres, mainly using animal fats. A plant that would produce 225 million litres of biodiesel from canola oil is under construction in Alberta.

The United States has mandated that 9 billion gallons (34 billion litres) of biofuel be sold in 2008, the equivalent of nearly 8 percent of anticipated gasoline demand. That amount will slowly increase each year to 36 billion gallons in 2022.