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Breton Plots - LTSE

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Data Holder: 
Noorallah, Juma
Publications: 
Influence of long-term tillage, straw and N fertilizer on barley yield, plant-N uptake and soil-N balance
Publications: 
Long-Term Changes in Soil Carbon under Different Fertilizer, Manure, and Rotation: Testing the Mathematical Model ecosys with Data from the Breton Plots
Publications: 
Long-term influence of cropping systems, tillage methods, and N sources on nitrate leaching
Publications: 
Carbon Balance of the Breton Classical Plots over Half a Century
Publications: 
Crop and nitrogen yield in legume-based rotations practiced with zero tillage and low-input methods
Publications: 
Management effects on the dynamics and storage rates of organic matter in long-term crop rotations
Publications: 
Simulating soil C dynamics with EPIC: Model description and testing against long-term data
Location:
Canada
Latitude: 53.116667
Longitude: -114.466667
Background
Continent: 
North America
Website: 
http://bretonplots.rr.ualberta.ca/
Year LTSE Began: 
1929
On-going or Terminated?: 
On-going
Comments: 
Renewable Resources The University of Alberta 751 General Services Building Edmonton, AB T6G 2H1 CANADA (780) 492-4413 Email: chair.rr@ualberta.ca archive - Soil samples for earlier periods are available for 1936/38, 1957, 1968, 1969 and 1979. Annual precipitation: 547 mm Annual mean temperature: 2.1 oC. This plots lie in isothermic region. About 15 years ago, the Breton Plots site had been converted from a mixed aspen (Populus spp.)-spruce (Picea spp.) to cultivated arigculture. I am not sure what are the dominant species in this plot since several agricultural species have been cultivated. The Classical Plots consist of 6 blocks and 11 treatments. The rotations are (1) a 2-year Wheat-Fallow (WF) rotation; and (2) a 5-year Wheat-Oat-Barley-Hay-Hay (WOBHH) rotation. Several sets of medium-term experimental plots are located in the southern half. Current experiments include management of straw/tillage and phosphorus fertilizer.
Environment
Annual Precipitation (mm): 
400-800
Landuse: 
Arable
Ecoregion: 
Cool Temperate Boreal
Slope (%): 
0-2%
Soil Classification
soilorder: 
Alfisol
Soil taxa (ex, Great Group of Soil Taxonomy): 
Typic Cryoboralfs. Gray Luvisols (Gray Wooded soils) complexed with Dark Gray Luvisols (Canadian Classification System).