Wheat is the major crop of extensive commercial agriculture. Apart from this maize, millet, canola and oats are also sown. The size of fields employed under this type of agriculture is very large and machines are largely used. Per acre production is less but per person average production is more. This type of agriculture is performed in Steppes of Eurasia, Prairies of North America, Pampas of Argentina, Velds of South Africa, Downs of Australia and grasslands of Canterbury of New Zealand.
