uid=KBS,o=lter,dc=ecoinformatics,dc=orgalluid=sbohm,o=lter,dc=ecoinformatics,dc=orgallpublicreadhttps://lter.kbs.msu.edu/datasets/147.emlGLBRC Switchgrass Variety Experiment I at the Kellogg Biological Station, Hickory Corners, MI (2010 to 2020)G.RobertsonMichigan State University3700 East Gull Lake DriveHickory CornersMI49060US(269) 760-8364(269)671-2351robert30@msu.edu0000-0001-9771-9895DennisPenningtonMichigan State UniversityHickory CornersMIchigan49060US269-671-2412pennin34@msu.eduCarolinaCordovaMichigan State UniversityUScordov13@msu.edu0000-0002-4716-127Xprincipal contact2026-05-16Dataset Abstractoriginal data source http://lter.kbs.msu.edu/datasets/147LTERKBSKellogg Biological StationHickory CornersMichiganGreat LakesyieldvarietyswitchgrassPrimary ProductionPopulationsLTER Core Research Areafarmingbiotahttps://apps.usgs.gov/thesaurus/thesaurus-full.php?thcode=15Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director. These restrictions are intended mainly to preserve the primary investigators' rights to first publication and to ensure that data users are aware of the limitations that may be associated with any specific data set. These restrictions apply to both the baseline data set and to the data sets associated with specific LTER-supported subprojects.All publications of KBS data and images must acknowledge KBS LTER support.The areas around the Kellogg Biological Station in southwest Michigan-85.404699-85.36685742.42026542.3910192010-11-152019-12-13Kellogg Biological StationData Managerlter.data.manager@kbs.msu.eduhttp://lter.kbs.msu.edu02vkce854KBS LTERStand counts can be used to evaluate seedling emergence, density, and distribution. We use the Vogel-Masters stand count method (Vogel and Masters, 2001) in herbaceous perennial treatments to measure frequency of occurrence or stand percentages of a single target species (i.e., switchgrass, miscanthus) or of a given growth form (i.e., native grasses). Dividing the frequency of occurrence by the total area examined provides a conservative estimate of plant density (plants/m2).
This protocol should be completed annually during the establishment phase.Stand Counts – PerennialsData Managerhttp://lter.kbs.msu.edu/protocols/175https://lter.kbs.msu.edu/datatables/508Kellogg Biological Station LTER: Dry Matter Yield (GLBRC098-001)Dry matter yields from machine harvests of the GLBRC Switchgrass Variety Experiment I, fertilized plot section only.Dry+Mater+Yield.csvNone351\ncolumn,no"\https://data.sustainability.glbrc.org/datatables/508.csvharvest_yearyear of the growing seasonYYYY11987-4-18harvest_datedate the crop was harvestedYYYY11987-4-18planting_yearyear the switchgrass was plantedYYYY-MM-DD11987-4-18switchgrass_varietyswitchgrass variety plantedswitchgrass variety plantedvariety_ecotypeecotype of the planted switchgrass varietyecotype of the planted switchgrass varietyreplicatereplicate nested within treatmentreplicate nested within treatmentarea_harvested_ft2area of plot harvestedsquareFootrealmoisture_at_harvest_percentcrop percent moisture at harvestgramsPerHectogramrealdry_matter_yield_tons_acredry matter yieldtonsPerAcrerealdry_matter_yield_mg_hadry matter yield megagramsPerHectarerealstand_frequency_percentstand frequency as per D. Undersander methodintegercommentssample notessample noteshttps://lter.kbs.msu.edu/datatables/617Kellogg Biological Station LTER: Agronomic Soil Chemistry (GLBRC098-002)Agronomic soil chemistry of surface soils (0-25 cm) from fertilized and unfertilized (starting in 2019) subplots of the GLBRC Switchgrass Variety Experiment I, as analyzed by the MSU Soil and Plant Nutrient Laboratory.Agronomic+Soil+Chemistry.csvNone371\ncolumn,no"\https://data.sustainability.glbrc.org/datatables/617.csvsample_datedate of soil samplingYYYY-MM-DD11987-4-18siteexperimental siteexperimental siteexperimentexperiment on the siteexperiment on the siteswitchgrass_varietyswitchgrass species variety switchgrass species variety treatmenttreatment (species) of the experimenttreatment (species) of the experimentreplicatereplicate of treatmentreplicate of treatmentnitrogen_applicationnitrogen application of the replicatenitrogen application of the replicatedepth_cmdepth of soil samplingcentimeterrealest_cecCation exchange capacity in meq/100g soilmilliEquivalentsPerHundredGramrealpHpH value of soil solutiondimensionlessreallime_indexindicator of potential acidityrealp_ppmphosphorus in soilmilligramsPerKilogramrealk_ppmpotassium in soilmilligramsPerKilogramrealca_ppmcalcium in soilmilligramsPerKilogramrealmg_ppmmagnesium in soilmilligramsPerKilogramreallabthe lab that performed the analysisthe lab that performed the analysishttps://lter.kbs.msu.edu/datatables/618Kellogg Biological Station LTER: Stand Counts (GLBRC098-003)Stand counts of the GLBRC Switchgrass Variety Experiment I, fertilized plot section only, using the Vogel and Masters (2001) method to determine switchgrass establishment success and survivorship.
Vogel, K.P. and R. A. Masters. 2001. Frequency grid: A simple tool for measuring grassland establishment. Journal of Range Management 54: 653-655.Stand+Counts.csvNone271\ncolumn,no"\https://data.sustainability.glbrc.org/datatables/618.csvyearsampling yearsampling yearsitesampling sitesampling sitetreatmentswitchgrass variety treatmentswitchgrass variety treatmentswitchgrass_varietyname of switchgrass varietyname of switchgrass varietyreplicateexperiment blockexperiment blockaverage_stand_countaverage stand counts of plantsnumberPerMeterSquared