University of Minnesota
University of Minnesota
College of Biological Sciences
http://www.cbs.umn.edu/

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Plant Competition Under Different Nitrogen Levels:A Garden Experiment - Experiment 055


Soil nitrate and ammonium

Years Available: 1989 - 2002

Principle Investigators

Tilman, David

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field number/letterField number/letter
2Experiment numberExperiment number
3Plot numberPlot number
4Subplot numberSubplot number
5N Level TreatmentAmounts of black soil added to plot as nitrogen treatment 1=0.3 inches, 2=0.5 inches, 3=1 inches, 4=2 inches, 5=3 inches, 6=4 inches, 7=5 inches, 8=5 inches, 9=6 inches, 10=7 inches, 11=8 inches, 12=9 inches, 13=10 inches, 14=10 inches
6Competition TreatmentCompetition Treatment number
7Competition Species PercentageSpecies designator followed by percentage of this species seeds of the total number of seeds planted.
8YearYear
9MonthMonth
10DayDay
11Moisture (g H2O / 100g Dry Soil)Moisture (g H2O / 100g Dry Soil)dimensionless
12NO3 in soil (mg/kg)NO3 in soil (mg/kg)milligramsPerKilogram
13NH4 in soil (mg/kg)NH4 in soil (mg/kg)milligramsPerKilogram
14NO2/NO3 in soil (mg/kg)NO2/NO3 in soil (mg/kg)millgramsPerKilogram
15NO2/NO3 in soil (mg/kg) duplicate analysissecond lab analysis value of soil sampledmilligramsPerKilogram
16NH4 in soil (mg/kg) duplicate analysissecond lab analysis value of soil sampledmilligramsPerKilogram
17DepthDepth of soil core in cmcentimeter
 

SAMPLE DATASET

Field number/letterExperiment numberPlot numberSubplot numberN Level TreatmentCompetition TreatmentCompetition Species PercentageYearMonthDayMoisture (g H2O / 100g Dry Soil)NO3 in soil (mg/kg)NH4 in soil (mg/kg)NO2/NO3 in soil (mg/kg)NO2/NO3 in soil (mg/kg) duplicate analysisNH4 in soil (mg/kg) duplicate analysisDepth
445511412PV30BG70198907069.630.27070.3003
445512414SS30AS70198907064.751.27260.1367
44551342SS100198907069.760.34910.5112
44551449PV70SS30198907063.850.62430.2089
445515413PV70BG301989070611.080.39860.4715
445516416SS30BG70198907064.410.54130.1068
445517418AS30BG70198907069.760.39580.4873
445518422AG70BG30198907063.781.12140.1336
44551944BG1001989070612.840.43380.4332
4455110417SS70BG30198907063.470.80900.5389
445511145AG1001989070612.790.40980.7314
4455112423BD30PV70198907063.930.57850.2218
                 

Download dataset nohe055
Plant Competition Under Different Nitrogen Levels:A Garden Experiment: Soil nitrate and ammonium

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