Will the Bounty End?: The Uncertain Future of Canada's Food Supply |
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acid rain agricultural chemicals Agricultural Land Agriculture Canada Alberta annual areas bacteria benefits breeders British Columbia Canadian agriculture Canadian Society Canadian Wheat Board centimeters climatic consumers continuous cropping corn costs crop rotations cultivation decades dioxin disease economic effects Environment environmental example export fallow farm farmland federal feed fertilizer fields genes genetic harm hectares herbicide important increase industry insecticides insects Institute of Agrologists involved irrigation kilograms legumes less livestock long-term loss Manitoba manure Maritimes methods million hectares natural nitrogen nitrogen fixation Nova Scotia numbers nutrients Ontario organic matter Ottawa percent personal communication Pest Management pesticides plants potato potential practices prairie farmers preserve Prince Edward Island problems projects province Quebec Rennie research station residues resource rhizobium salt Saskatchewan Saskatoon Soil Conservation Soil Erosion soil scientist spraying summerfallow tonnes topsoil toxic urban varieties weeds yields zero-till