University of Minnesota
University of Minnesota
College of Biological Sciences
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The Effect of Nitrogen Addition and Different pH Levels on Microorganism Populations - Experiment 024


Soil ammonium

Years Available: 1987

Principle Investigators

Hankinson, Tom
Schmidt, Ed
Tilman, David

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field number/letterField number/letter
2Experiment numberExperiment number
3sample id numbersample id number
4Plot numberPlot number
5 pH treatmentOther nutrient additions trying to create different pH levels1=received 62.5 g/m2 S 250 g/m2 FeSO4; 2=received no nutrients to adjust the pH level; 3=received 62.5 g/m2 of Ca(OH)2 in 1984 and 125 g/m2 in 1985; 4=received 125 g/m2 of Ca(OH)2 in 1984 and 250 g/m2 in 1985
6Nitrogen TreatmentNitrogen treatment applied twice per year5=8.0 g/m2; 7=25.0 g/m2; 9=0.0 g/m2
7Ammonium Nitrate(34-0-0) addition(g/m2/yr)Total annual nitrogen fertilizer additiongramsPerMeterSquaredPerYear
8Sampling dateSampling date (YYMMDD)
9Moisture (g H2O / 100g Dry Soil)Moisture (g H2O / 100g Dry Soil)gramsPer100Grams
10Dry soil weight (g)Dry soil weight (g)gram
11NH4 solution (ppm)NH4 solution (ppm)dimensionless
12NH4 in soil (mg/kg)NH4 in soil (mg/kg)milligramsPerKilogram
 

SAMPLE DATASET

Field number/letterExperiment numbersample id numberPlot number pH treatmentNitrogen TreatmentAmmonium Nitrate(34-0-0) addition(g/m2/yr)Sampling dateMoisture (g H2O / 100g Dry Soil)Dry soil weight (g)NH4 solution (ppm)NH4 in soil (mg/kg)
B241951351687072710.6212.02230.3621.506
B2477135168708244.3218.41860.3280.892
B2478227508708243.916.30880.4611.414
B24212227508707278.9815.21920.381.248
B2479345168708244.6117.44771.9275.521
B241963451687072710.4911.9140.6062.545
B24213437508707279.6815.53561.0063.237
B2480437508708243.5915.50280.662.129
B24178549087072710.5113.94220.4631.662
B248154908708244.6119.3650.571.471
B241976151687072713.4715.81843.39710.736
B2482615168708248.0513.69192.3258.489
            

Download dataset nhe024
The Effect of Nitrogen Addition and Different pH Levels on Microorganism Populations: Soil ammonium

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