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 pH

Years Available: 1987 - 1991

Principle Investigators

Hankinson, Tom
Schmidt, Ed
Tilman, David

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field number/letterField number/letter
2Experiment numberExperiment number
3Plot numberPlot number
4 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
5Nitrogen TreatmentNitrogen treatment applied twice per year5=8.0 g/m2; 7=25.0 g/m2; 9=0.0 g/m2
6Ammonium Nitrate(34-0-0) addition(g/m2/yr)Total annual nitrogen fertilizer additiongramsPerMeterSquaredPerYear
7Sampling YearSampling Year (YYYY)
8Sampling dateSampling date (YYMMDD)
9pHpH Soildimensionless
 

SAMPLE DATASET

Field number/letterExperiment numberPlot number pH treatmentNitrogen TreatmentAmmonium Nitrate(34-0-0) addition(g/m2/yr)Sampling YearSampling datepH Soil
B241351619877.02
B242275019876.3
B243451619877.15
B244375019876.61
B24549019877.17
B246151619874.9
B247375019876.33
B248375019876.28
B249475019876.44
B2410251619875.84
B241149019876.27
B2412351619876.04
         

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The Effect of Nitrogen Addition and Different pH Levels on Microorganism Populations: Soil pH

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