Stand Counts of Perennial Crops — GLBRC Marginal Land Experiment
Stand counts of perennial crops are occasionally conducted to monitor growth and recruitment at GLBRC Marginal Land Experiment sites.
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.
|Experiment:||GLBRC Marginal Land Experiment|
|Data available from:||May 2017 to June 2019|
|Core Areas||Primary Production|
|sample date||sampling date|
|field section||field section of plot|
|n treatment||nitrogen treatment (with vs. without nitrogen fertilization)|
|average stand count||average stand count||squaremeter|
|2017-05-08||GLBRC Marginal Land Experiment||G5||Michigan South - Lux Arbor Reserve||R1||east||control||22.0|
|2017-05-08||GLBRC Marginal Land Experiment||G5||Michigan South - Lux Arbor Reserve||R1||west||plus_n||16.0|
|2017-05-08||GLBRC Marginal Land Experiment||G5||Michigan South - Lux Arbor Reserve||R2||east||plus_n||37.6|
|2017-05-08||GLBRC Marginal Land Experiment||G5||Michigan South - Lux Arbor Reserve||R2||west||control||40.0|
|2017-05-08||GLBRC Marginal Land Experiment||G5||Michigan South - Lux Arbor Reserve||R3||east||control||34.8|