Materials derived primarily from renewable sources such as replenishable
agricultural feed stocks, animal sources, marine food processing industry wastes, or microbial sources, and can break down to produce environmentally friendly products such as carbon dioxide, water, and quality compost.
Not exact matches
They include: high levels of degraded soils; reductions in irrigation quotas to restore the health of the Murray - Darling system; the re-forestation of some
agricultural land to meet emissions reductions targets; the impacts of peak oil, such as the diversion of food crops into
feed -
stock for biofuels; and the price and crop yield implications of peak phosphorous, given Australia's dependence on imported fertilisers.
And we wouldn't have to worry about running out of plumage: About five million tonnes of the
agricultural waste product are rendered into
stock feed or buried in landfills every year.