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Long-Term Soil Productivity Study:

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  (Treatments)

Study Details

Results to Date

  1. R1 - Priest River
    • Pre-Harvest
    • Immediate Post-Harvest
    • 3 Year Post-Harvest
      • Soil
    • 5 Year Post-Harvest
  2. R4 - Council Ranger District

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Contact:
Debbie Page-Dumroese
email Debbie

Last Revised:

Microbial Processes > Long-Term Soil Productivity (LTSP) Study > Results to Date > Priest River LTSP (Region 1) 3 Year Post-Harvest Soil Measurements

R1 3 Year Post-Harvest % Soil Organic Matter

Graph showing % organic matter 3 years after implementing 9 treatments - C0OM0: 38.63875%; C0OM1: 35.7516666666667%; C0OM2: 39.16875%; C0/Stumped: 41.58875%; C1OM0: 35.3575%; C1OM1: 33.8390909090909%; C1OM2: 23.3227272727273%; C2OM0: 40.3625%; C2OM1: 41.6633333333333%; C2OM2: 27.8566666666667%


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R1 3 Year Post-Harvest Soil CEC

Graph showing soil CEC 3 years after implementing 9 treatments - C0OM0: 29.646 cmol/kg; C0OM1: 26.13 cmol/kg; C0OM2: 29.9925 cmol/kg; C0/Stumped: 38.3325 cmol/kg; C1OM0: 46.2833333333333 cmol/kg; C1OM1: 40.9211111111111 cmol/kg; C1OM2: 34.888 cmol/kg; C2OM0: 33.315 cmol/kg; C2OM1: 41.7583333333333 cmol/kg; C2OM2: 30.16 cmol/kg


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R1 3 Year Post-Harvest Mineral % Soil Carbon and Nitrogen

Graph showing % soil carbon and nitrogen 3 years after implementing 9 treatments - C0OM0: carbon = 14.1675%, nitrogen = 0.404625%; C0OM1: carbon = 13.16%, nitrogen = 0.441166666666667%; C0OM2: carbon = 15.69875%, nitrogen = 0.4345%; C0/Stumped: carbon = 16.3975%, nitrogen = 0.620375%; C1OM0: carbon = 14.355%, nitrogen = 0.5495%; C1OM1: carbon = 13.82%, nitrogen = 0.471083333333333%; C1OM2: carbon = 9.19642857142857%, nitrogen = 0.322857142857143%; C2OM0: carbon = 15.4425%, nitrogen = 0.381625%; C2OM1: carbon = 16.903%, nitrogen = 0.4137%; C2OM2: carbon = 12.99125%, nitrogen = 0.474625%


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R1 3 Year Post-Harvest Soil Cations

Graph showing soil cations 3 years after implementing 9 treatments - C0OM0: MG = 251.111111111111 mg/kg, CA = 2008.88888888889 mg/kg, K = 1537.77777777778 mg/kg; C0OM1: MG = 273.333333333333 mg/kg, CA = 2001.66666666667 mg/kg, K = 1645 mg/kg; C0OM2: MG = 337.5 mg/kg, CA = 2983.75 mg/kg, K = 1741.25 mg/kg; C0/Stumped: MG = 412.5 mg/kg, CA = 4427.5 mg/kg, K = 1816.25 mg/kg; C1OM0: MG = 516.25 mg/kg, CA = 3785 mg/kg, K = 1688.75 mg/kg; C1OM1: MG = 391.666666666667 mg/kg, CA = 3250 mg/kg, K = 1482.5 mg/kg; C1OM2: MG = 310.833333333333 mg/kg, CA = 2781.66666666667 mg/kg, K = 1397.5 mg/kg; C2OM0: MG = 400 mg/kg, CA = 3083.75 mg/kg, K = 1922.5 mg/kg; C2OM1: MG = 353.333333333333 mg/kg, CA = 2303.33333333333 mg/kg, K = 1726.66666666667 mg/kg; C2OM2: MG = 287.5 mg/kg, CA = 2555 mg/kg, K = 1472.5 mg/kg


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R1 3 Year Post-Harvest Bulk Density Summary

Graph showing mean bulk density 3 years after implementing 9 treatments - C0OM0: 0.59 g/cm3; C0OM1: 0.67 g/cm3; C0OM2: 0.6702 g/cm3; C0/Stumped: 0.668020408163265 g/cm3; C1OM0: 0.6224 g/cm3; C1OM1: 0.6825 g/cm3; C1OM2: 0.64325 g/cm3; C2OM0: 0.586145833333333 g/cm3; C2OM1: 0.6146 g/cm3; C2OM2: 0.6128 g/cm3


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Priest River LTSP (R1) 5 Year Post-Harvest Soil Measurements >