Pendleton Residue Management Experiment
This experiment has been added by the GLTEN Curators using existing published sources.
- Local identifier
- CR
- Years operational
- 1931—
- Objective
- Originally initiated to evaluate the effect of different soil amendments (based on farmer practices in the 1930’s) on soil and crop productivity under the wheat-fallow system. Today the experiment is used to determine the point of equilibrium in C sequestration and depletion for each treatment and how soil microbial community and soil quality will be affected.
- Description
- The C and N content of the upper 24 inches of soil has been determined about every 10 years (1931, 1941, 1951, 1964, 1976, 1986, and 1995). Straw yield, grain and straw N content, and the nutrient content of organic amendments have been determined since 1977.
- Data Access Statement
- Don't know
- Data license
- Don't know
- Data policy
- Don't know
- Organization
- Columbia Basin Agricultural Research Center, University of Oregon
- People
Site: Residue management plots
- Type
- research station field
- Local code
- CR
- Location
- PendletonOregonUSA
- Geographic location
- 45.723968, -118.623262
- Elevation
- 455 Metres
- Visits permitted?
- No
- Soil description
- Soils are coarse silty mixed mesic Typic Haploxerolls
- Climate description
- The climate is semi-arid, but partially influenced by maritime winds from the Pacific Ocean. Winters are cool and wet, and summers are hot and dry
- Climate properties
Variable Time period Value (range) Units precipitation 420 millimeter air temperature 10 (-1 – 21) degree Celsius
Design period: Period 1 (1931—1966)
- Description
- The rotation is winter wheat/fallow and the tillage is conventional moldboard plough.
- Design description
- The experimental design is an ordered block consisting of nine treatments (10 originally) and two replications. The rotation is fully phased such that wheat and fallow plots are present each year. Plots measure 11.6 x 40.2m.
- Number of plots
- 18
- Number of replicates
- 2
- Number of harvests per year
- 1
- Crops
Crop Years grown winter wheat fallow - Crop Rotation
- W-F
- 1winter wheat
- 2fallow
- Factors
- Factor name
- Factor levels
- crop residue management process
FD
Fall diskingSD
Spring diskingNB
No burningFB
Fall burningSB
Spring burning- natural fertilizer exposure
farmyard manure (22 t/ha)
Applied to crop: winter wheatApplied 1-3 days before ploughing. Wet weight.Pea vines (2.24 t/ha)
Applied to crop: winter wheatApplied 1-3 days before ploughing. Field weight.- nitrogen fertilizer exposure
with N (34 kgN/ha)
Applied to crop: winter wheatApplication frequency: early October
- Factor combinations
- T2
- crop residue management process: -
- T3
- crop residue management process: SD
- T4
- crop residue management process: NBnitrogen fertilizer exposure: with N
- T5 Same as T4
- crop residue management process: NBnitrogen fertilizer exposure: with N
- T6
- crop residue management process: FB
- T7
- crop residue management process: SB
- T8
- crop residue management process: NBnatural fertilizer exposure: farmyard manure
- T9
- crop residue management process: NBnatural fertilizer exposure: Pea vines
- T10
- crop residue management process: NB
Design period: Period 2 (1967—)
- Design description
- Experiment treatments were modified with spring and fall disking being replaced by the no burn treatment (1967-78) then spring burn (1979-). A second and higher N rate was also introduced.
- Number of plots
- 18
- Number of replicates
- 2
- Number of harvests per year
- 1
- Crops
Crop Years grown winter wheat fallow - Crop Rotation
- W-F
- 1winter wheat
- 2fallow
- Factors
- Factor name
- Factor levels
- crop residue burning process
NB
No burningSB
Spring burningFB
Fall burning- natural fertilizer exposure
farmyard manure (22 t/ha)
Applied to crop: winter wheatApplied 1-3 days before ploughing. Wet weight.Pea vines (2.24 t/ha)
Applied to crop: winter wheatApplied 1-3 days before ploughing. Field weight.- nitrogen fertilizer exposure
control exposure (0 )
N45 (45 kgN/ha)
Applied to crop: winter wheatApplication frequency: Early OctoberN90 (90 kgN/ha)
Applied to crop: winter wheatApplication frequency: Early October
- Factor combinations
- T2 1967—1978
- crop residue burning process: NBnitrogen fertilizer exposure: N45
- T2 1979—
- crop residue burning process: SBnitrogen fertilizer exposure: N45
- T3 1967—1978
- crop residue burning process: NBnitrogen fertilizer exposure: N90
- T3 1979—
- crop residue burning process: SBnitrogen fertilizer exposure: N90
- T4
- crop residue burning process: NBnitrogen fertilizer exposure: N45
- T5
- crop residue burning process: NBnitrogen fertilizer exposure: N90
- T6
- crop residue burning process: FB
- T7
- crop residue burning process: SB
- T8
- crop residue burning process: NBnatural fertilizer exposure: farmyard manure
- T9
- crop residue burning process: NBnatural fertilizer exposure: Pea vines
- T10
- crop residue burning process: NB
- Measurements
Variable Material Units Frequency Scale Comment grain yield trait winter wheat Since 1977 shoot system yield trait winter wheat Straw. Since 1977 nitrogen content winter wheat Grain and straw. Since 1977
Related publications
- Project website
- S. Petrie 2001. 2001 PROGRESS REPORT LONG-TERM EXPERIMENTS: PENDLETON, OREGON
- Machado, S. (2011), Soil Organic Carbon Dynamics in the Pendleton Long-Term Experiments: Implications for Biofuel Production in Pacific Northwest. Agron. J., 103: 253-260. https://doi.org/10.2134/agronj2010.0205s [In English]