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Wheat Yields and Soil Fertility on the Canadian Prairies after a Half Century of Farming
Author(s) -
Hill K. W.
Publication year - 1954
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1954.03615995001800020017x
Subject(s) - agronomy , cropping , soil fertility , crop rotation , environmental science , manure , agriculture , fertilizer , summer fallow , geography , soil water , crop , biology , soil science , archaeology
At three Experimental Stations in Western Canada the yields of spring wheat on summerfallow in grain rotations have been maintained for 40 years without the addition of fertilizer or manure. Yields of wheat following wheat in these rotations at two Stations may have declined slightly but this was not due entirely to reduced fertility since weed infestations have adversely affected yields. At the Lethbridge Station in Alberta, average losses of 25% nitrogen and 19% organic matter have occurred in the grain rotations since 1910. It appears that a cropping practice which includes wheat and summerfallow can be continued profitably for some time to come in Western Canada if soil erosion and weeds can be controlled.