Agriculture in Saskatchewan is the production of various food, feed, or fiber commodities to fulfill domestic and international human and animal sustenance needs. The newest agricultural economy to be developed in renewable biofuel production or agricultural biomass which is marketed as ethanol or biodiesel. Plant cultivation and livestock production have abandoned subsistence agricultural practices in favor of intensive technological farming resulting in cash crops which contribute to the economy of Saskatchewan. The particular commodity produced is dependent upon its particular biogeography or ecozone of Geography of Saskatchewan. Agricultural techniques and activities have evolved over the years. The first nation nomadic hunter-gatherer lifestyle and the early immigrant ox and plow farmer proving up on his quarter section of land in no way resemble the present farmer operating huge amounts of land or livestock with their attendant technological mechanization. Challenges to the future of Saskatchewan agriculture include developing sustainable water management strategies for a cyclical drought prone climate in south western Saskatchewan, updating dryland farming techniques, stabilizing organic definitions or protocols and the decision to grow, or not to grow genetically modified foods. Domestically and internationally, some commodities have faced increased scrutiny from disease and the ensuing marketing issues. Canada's production of wheat, oats, flaxseed, and barley come mainly from Saskatchewan and the prairie provinces. Meat processing is the largest industry here, followed by dairy production, breweries, and the subsidiary industry of agricultural implements. Saskatchewan still has cattle ranching along the southwestern corner of the province, However, grain farming and growing crops such as wheat, oats, flax, alfalfa, and rapeseed (especially canola) dominate the parkland area. Mixed grain farming, dairy farms, mixed livestock and grazing lands dot the central lowlands region of this prairie province. (en)