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Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use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; including switchgrass (G5), miscanthus (G6), native grasses (G7), hybrid poplar (G8), early successional (G9), and restored prairie (G10)) 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: | GLBRC094-004.119 |
| Repository link: | |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2023-10-24 |
| 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/ |
| Protocols |
|---|
GLBRC data is not yet publicly available.
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| obs_date | observation_type | comment | name | material | rate | units | equipment | observation_id |
|---|---|---|---|---|---|---|---|---|
| 2023-10-18 | Harvest | Harvested Lake City MI MLE G5, G6, G7, G9, and G10 (fertilized and non-fertilized plots). Harvested with JD 6140 tractor using the 7.5 ft wide Kemper head and custom biomass weighing system. The middle 7.5' of each micro-plot were harvested. Plot weights were obtained from the on-board Mettler Toledo scale. Cutting height of plant stubble was 4-6 inches. Grab samples from each rep was placed in burlap bags, weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Remaining standing crop was then harvested. | MCG10R1 | Kemper harvester / tractor / weigh container | 6034 | |||
| 2023-10-18 | Harvest | Harvested Lake City MI MLE G5, G6, G7, G9, and G10 (fertilized and non-fertilized plots). Harvested with JD 6140 tractor using the 7.5 ft wide Kemper head and custom biomass weighing system. The middle 7.5' of each micro-plot were harvested. Plot weights were obtained from the on-board Mettler Toledo scale. Cutting height of plant stubble was 4-6 inches. Grab samples from each rep was placed in burlap bags, weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Remaining standing crop was then harvested. | MCG10R1 | 6034 | ||||
| 2023-10-18 | Harvest | Harvested Lake City MI MLE G5, G6, G7, G9, and G10 (fertilized and non-fertilized plots). Harvested with JD 6140 tractor using the 7.5 ft wide Kemper head and custom biomass weighing system. The middle 7.5' of each micro-plot were harvested. Plot weights were obtained from the on-board Mettler Toledo scale. Cutting height of plant stubble was 4-6 inches. Grab samples from each rep was placed in burlap bags, weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Remaining standing crop was then harvested. | MCG10R2 | 6034 | ||||
| 2023-10-18 | Harvest | Harvested Lake City MI MLE G5, G6, G7, G9, and G10 (fertilized and non-fertilized plots). Harvested with JD 6140 tractor using the 7.5 ft wide Kemper head and custom biomass weighing system. The middle 7.5' of each micro-plot were harvested. Plot weights were obtained from the on-board Mettler Toledo scale. Cutting height of plant stubble was 4-6 inches. Grab samples from each rep was placed in burlap bags, weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Remaining standing crop was then harvested. | MCG10R2 | Kemper harvester / tractor / weigh container | 6034 | |||
| 2023-10-18 | Harvest | Harvested Lake City MI MLE G5, G6, G7, G9, and G10 (fertilized and non-fertilized plots). Harvested with JD 6140 tractor using the 7.5 ft wide Kemper head and custom biomass weighing system. The middle 7.5' of each micro-plot were harvested. Plot weights were obtained from the on-board Mettler Toledo scale. Cutting height of plant stubble was 4-6 inches. Grab samples from each rep was placed in burlap bags, weighed for wet weight and placed in plant dryer and will be reweighed to determine percent moisture for each treatment and replication. Remaining standing crop was then harvested. | MCG10R3 | Kemper harvester / tractor / weigh container | 6034 |