Agronomic Log — GLBRC Marginal Land 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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Record of agronomic and sampling activities carried out on the GLBRC Marginal Land Experiment (MLE) sites in Michigan and Wisconsin.
This datatable is part of the Cropping Systems – Marginal Land Experiment dataset. This dataset contains data on the biofuel cropping systems of the GLBRC Marginal Land Experiment (MLE) originally established in 2013 at north, central and south sites in Wisconsin and Michigan. The experiment consists of six different biofuel cropping systems (a.k.a. treatments; G5-G10; including switchgrass, miscanthus, native grasses, hybrid poplar, early successional, and restored prairie) plus an historical vegetation control (G11), replicated in each of 4 blocks (R1-R4) at each site. Split-plot treatments were initiated in 2014-2016 to examine the effect of nitrogen fertilization [plus_n (+N) vs control (0N)] on all cropping systems.
Seasonal deployment of rainfall exclusion (rainout) shelters in the fertilized split plot of the switchgrass (G5) treatment began in 2018 to examine the effects of drought on plant growth. See the Marginal Land Rainfall Exclusion Experiment for these data.
Note that Block 1 at the Wisconsin Central – Hancock site was retired in 2015 and the entire Wisconsin South – Oregon site was retired after 2018 growing season when the maintenance, harvest, sampling and analysis of the remaining Wisconsin sites was transferred from UW staff to MSU staff.
Note
| Experiment: | GLBRC Marginal Land Experiment |
| Data available from: | September 2012 to October 2019 |
| Dataset: | GLBRC126 |
| Datatable ID: | GLBRC094-004.108 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2023-01-17 |
| Variate | Description | Units |
|---|---|---|
| obs date | date the activity occurred | |
| observation type | type of activity performed | |
| comment | aglog entry | |
| name | state, site (northern, central or southern), treatment, replicate | |
| material | material applied | |
| rate | rate the material is applied at | |
| units | rate unit | |
| equipment | equipment | |
| observation id | observation id. This can be used to retrieve the original observation at http://aglog.kbs.msu.edu/observations/ |
Data Excerpt
| obs_date | observation_type | comment | name | material | rate | units | equipment | observation_id |
|---|---|---|---|---|---|---|---|---|
| 2023-04-26 | Herbicide Application | Used backpack sprayer with 6.6' boom with 4 nozzles with 11015 tips spraying at 12 gallon solution per acre to spray glyphosate to kill cool season grasses before switchgrass emergence. sprayed whole plot of G5 & G7. sprayed 6.6 foot borders on G6 (grasses from alley moving into plot). sprayed G8 R1 alleys to control heavy grass pressure. | MNG5R1 | AgSaver Glyphosate 53.8% | 36.0 | ounce | Backpack sprayer | 5769 |
| 2023-04-26 | Herbicide Application | Used backpack sprayer with 6.6' boom with 4 nozzles with 11015 tips spraying at 12 gallon solution per acre to spray glyphosate to kill cool season grasses before switchgrass emergence. sprayed whole plot of G5 & G7. sprayed 6.6 foot borders on G6 (grasses from alley moving into plot). sprayed G8 R1 alleys to control heavy grass pressure. | MNG5R1 | NIS surfactant | 0.13 | % v/v | Backpack sprayer | 5769 |
| 2023-04-26 | Herbicide Application | Used backpack sprayer with 6.6' boom with 4 nozzles with 11015 tips spraying at 12 gallon solution per acre to spray glyphosate to kill cool season grasses before switchgrass emergence. sprayed whole plot of G5 & G7. sprayed 6.6 foot borders on G6 (grasses from alley moving into plot). sprayed G8 R1 alleys to control heavy grass pressure. | MNG5R1 | 5769 | ||||
| 2023-04-26 | Herbicide Application | Used backpack sprayer with 6.6' boom with 4 nozzles with 11015 tips spraying at 12 gallon solution per acre to spray glyphosate to kill cool season grasses before switchgrass emergence. sprayed whole plot of G5 & G7. sprayed 6.6 foot borders on G6 (grasses from alley moving into plot). sprayed G8 R1 alleys to control heavy grass pressure. | MNG5R1 | Condition | 0.25 | % v/v | Backpack sprayer | 5769 |
| 2023-04-26 | Herbicide Application | Used backpack sprayer with 6.6' boom with 4 nozzles with 11015 tips spraying at 12 gallon solution per acre to spray glyphosate to kill cool season grasses before switchgrass emergence. sprayed whole plot of G5 & G7. sprayed 6.6 foot borders on G6 (grasses from alley moving into plot). sprayed G8 R1 alleys to control heavy grass pressure. | MNG5R2 | 5769 |