Soil pH and liming rates — Resource Gradient Experiment
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
We’re only using this data to merge the lime treatment info into the CN data set.
This datatable is part of the Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. dataset.
Data for Data for McGill et.al. 2018. The greenhouse gas cost of agricultural intensification with groundwater irrigation in a Midwest US row cropping system. https://doi.org/10.1111/gcb.14472
Note
| Experiment: | Resource Gradient Experiment |
| Data available from: | January 2011 to January 2017 |
| Dataset: | KBS125 |
| Datatable ID: | KBS127-003.181 |
| Repository link: | http://doi.org/10.6073/pasta/6ab26c6ead42552a1d4f0261e8dac9bc |
| Related Tables: | |
| Related Files: | |
| Personnel: |
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| Last Updated | 2023-10-24 |
| Variate | Description | Units |
|---|---|---|
| treatment | N fertilizer treatment, see experimental design: https://lter.kbs.msu.edu/research/long-term-experiments/resource-gradient/ | |
| group number | unique groupings of treatment by irrigation | |
| replicate | replicates within irrigation treatment. 4 replicates (blocks) of all 9 fert levels rainfed, and another 4x9 irrigated | |
| plot | plot number | |
| block | experimental block | |
| is irrigated | 't' if the plot is irrigated, 'f' if it is not. | |
| irrigated mm | growing season total mm of irrigation if irrigated | |
| year | calendar year | |
| crop | crop rotation: corn, soy, wheat | |
| nfertcorn | N fertilizer kg/ha treatment in corn years (listed as corn year for all years) | kg/ha |
| nfert | actual N fertilizer kg/ha treatment specific to crop | kg/ha |
| limeton | "ton/acre lime received (coded for 2012 only, all other years 0) | |
| lime kg | kg/ha lime received (coded for 2012 only, all other years 0) | kg/ha |
| lime full | lime ton/acre received, 2012 level coded every year | |
| has lime applied | received lime in 2012? 't'= true, 'f' = false | |
| pH | pH | |
| hconc | H in H concentration, [H+]= 10^(-pH) | |
| harvest date | date the crop was harvested | |
| crop yield | crop yield | kg/ha |
| Protocols |
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Data Excerpt
| treatment | group_number | replicate | plot | block | is_irrigated | irrigation_mm | year | crop | nfertcorn | nfert | limeton | limekg | lime_full | has_lime_applied | ph | hconc | harvest_date | crop_yield |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F1 | 1 | R1 | 101 | 1 | false | 0.0 | 2011 | corn | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | false | 6.5 | 3.16228e-07 | 2011-11-17 | 5578.0 |
| F2 | 2 | R1 | 102 | 1 | false | 0.0 | 2011 | corn | 34.0 | 34.0 | 0.0 | 0.0 | 0.0 | false | 6.7 | 1.99526e-07 | 2011-11-17 | 7739.0 |
| F3 | 3 | R1 | 103 | 1 | false | 0.0 | 2011 | corn | 67.0 | 67.0 | 0.0 | 0.0 | 1.0 | false | 6.1 | 7.94328e-07 | 2011-11-17 | 9797.0 |
| F4 | 4 | R1 | 104 | 1 | false | 0.0 | 2011 | corn | 101.0 | 101.0 | 0.0 | 0.0 | 0.0 | false | 6.8 | 1.58489e-07 | 2011-11-17 | 11680.0 |
| F5 | 5 | R1 | 105 | 1 | false | 0.0 | 2011 | corn | 134.0 | 134.0 | 0.0 | 0.0 | 0.0 | false | 6.5 | 3.16228e-07 | 2011-11-17 | 12673.0 |