Agronomic Soil Chemistry — GLBRC Switchgrass Variety Experiment II
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Agronomic soil test results of the GLBRC Switchgrass Variety Experiment II. Surface soils (0-25 cm) are periodically sampled, air dried, and sent to an analytical laboratory for testing and fertilizer and liming recommendations.
This datatable is part of the Switchgrass Variety Experiment II dataset.
This dataset contains data on the KBS GLBRC Switchgrass Variety Experiment II, established in May 2021, to examine the establishment potential, productivity, and feedstock quality of switchgrass varieties Nine different varieties (T1-T9) are planted in a complete randomized block design arranged in 4 replicate blocks (R1-R4). Plots are 9.2 × 12.2 m and are equally divided lengthwise into nitrogen-fertilized (+N) and unfertilized (0N) split-plots. Varieties include three upland (Blackwell, Cave-in-Rock, and Summer), three lowland (Alamo, Kanlow, and Cedar Creek (planted in 2022)), one coastal (Timber), and two hybrid (Liberty (crossed upland-lowland), and Shawnee (modified upland)) ecotypes.
More info at https://lter.kbs.msu.edu/research/long-term-experiments/kbs-glbrc-switchgrass-variety-experiment-ii/
Note
| Experiment: | GLBRC Switchgrass Variety Experiment II |
| Dataset: | GLBRC142 |
| Datatable ID: | GLBRC142-003.30 |
| Core Areas | Disturbance |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2024-06-24 |
| Variate | Description | Units |
|---|---|---|
| sample date | ||
| site | ||
| experiment | ||
| treatment | numerical treatment of the Switchgrass Variety Experiment II | |
| variety | switchgrass variety treatment | |
| ecotype | switchgrass variety ecotype | |
| replicate | ||
| microplot treatment | ||
| campaign | soil sampling campaign | |
| depth | soil sampling depth | |
| pH | soil pH value | |
| p ppm | Bray-P1 concentration | mg/kg |
| k ppm | potassium concentration | mg/kg |
| ca ppm | calcium concentration | mg/kg |
| mg ppm | magnesium concentration | mg/kg |
| est cec | Cation exchange capacity in meq/100g soil | meq/100g |
| om percent | organic matter percent | % |
| p M3 ppm | P-M3 (Mehlich III) concentration | mg/kg |
| mg percent | magnesium percentage | % |
| ca percent | calcium percentage | % |
| h percent | hydrogen percentage | % |
| k percent | potassium percentage | % |
GLBRC data is not yet publicly available.
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| sample_date | site | experiment | treatment | variety | ecotype | replicate | main_or_microplot | campaign | depth | ph | p_ppm | k_ppm | ca_ppm | mg_ppm | est_cec | om_percent | p_M3_ppm | mg_percent | ca_percent | h_percent | k_percent |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2023-11-16 | KBS GLBRC Intensive Site | GLBRC Switchgrass Variety Experiment II | 9 | Shawnee | ul hybrid | 3 | fertilized subplot | surface sample | 0-25cm | 6.4 | 12.0 | 43.0 | 700.0 | 105.0 | 5.7 | 1.3 | 18.0 | 15.4 | 61.6 | 21.1 | 1.9 |
| 2023-11-16 | KBS GLBRC Intensive Site | GLBRC Switchgrass Variety Experiment II | 1 | Alamo | lowland | 1 | unfertilized subplot | surface sample | 0-25cm | 6.1 | 7.0 | 38.0 | 700.0 | 120.0 | 5.8 | 1.3 | 12.0 | 17.2 | 60.4 | 20.7 | 1.7 |
| 2023-11-16 | KBS GLBRC Intensive Site | GLBRC Switchgrass Variety Experiment II | 1 | Alamo | lowland | 2 | unfertilized subplot | surface sample | 0-25cm | 6.3 | 11.0 | 41.0 | 700.0 | 125.0 | 5.8 | 1.4 | 17.0 | 17.8 | 59.9 | 20.5 | 1.8 |
| 2023-11-16 | KBS GLBRC Intensive Site | GLBRC Switchgrass Variety Experiment II | 1 | Alamo | lowland | 3 | unfertilized subplot | surface sample | 0-25cm | 6.6 | 12.0 | 46.0 | 800.0 | 120.0 | 6.3 | 1.4 | 18.0 | 15.8 | 63.3 | 19.0 | 1.9 |
| 2023-11-16 | KBS GLBRC Intensive Site | GLBRC Switchgrass Variety Experiment II | 1 | Alamo | lowland | 4 | unfertilized subplot | surface sample | 0-25cm | 6.0 | 15.0 | 36.0 | 550.0 | 85.0 | 4.8 | 1.2 | 21.0 | 14.9 | 57.9 | 25.3 | 1.9 |