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Mississippi Feedstocks Research. Brian Baldwin Dept. of Plant and Soil Science. Focus Crops. Dry Harvested, truly deciduous Switchgrass Giant miscanthus (Mxg) – yields are twice swtg Wet harvested Sweet sorghum (sugar and bagasse) Energycane (some sugar and whole stalk) - PowerPoint PPT Presentation

Text of Mississippi Feedstocks Research

  • Mississippi Feedstocks ResearchBrian BaldwinDept. of Plant and Soil Science

  • Focus CropsDry Harvested, truly deciduousSwitchgrassGiant miscanthus (Mxg) yields are twice swtg

    Wet harvestedSweet sorghum (sugar and bagasse)Energycane (some sugar and whole stalk)Inclusion of Mississippi cultivarsNapiergrass (elephantgrass) de-emphasized

  • Giant Miscanthus18-20 T/ASwitchgrass7-10 T/A

  • Standability

  • Sweet sorghum8-12 T/ANaipergrass0-19 T/AEnergycane5-23 T/A

  • End of Season Harvest2008TonnageTons/A (front columns) Mg/ha (back columns)

    Chart1

    14.532.509

    4.910.9858

    4.39.6406

    10.423.3168

    15.234.0784

    22.951.3418

    2147.082

    1533.63

    19.944.6158

    10.423.3168

    17.839.9076

    11.926.6798

    11.626.0072

    11.225.1104

    Tons/A

    Mg/ha

    Sheet1

    Tons/AMg/ha

    Ho 00-96114.532.509

    Ho 96-9884.910.9858

    L 99-2334.39.6406

    US 01-0710.423.3168

    US 02-14415.234.0784

    US 02-14722.951.3418

    US 06-90012147.082

    US 06-90021533.63

    US 72-11419.944.6158

    Swtg 'Alamo'10.423.3168

    Mxg 'Freedom'17.839.9076

    Della SOR11.926.6798

    Topper SOR11.626.0072

    M81-E SOR11.225.1104

  • WoodStill the primary feedstock for existing and new EtOH and syngas plants

    Can we provide grass between trees as they are regenerating (co-culture).What are the potential effects on each crop?What are the economics of the expected yield compromise?

  • EstablishmentLike real estate, its all about three thingsEstablishment, establishment, establishment

    Need herbicides that work for switchgrass pre- especially

    Need herbicides we can use in Mxg

  • Herbicide ResistanceSeed SafenerLow Seed Dormancy

  • Land ResourcesLand for biomass crops will NOT come from row crop landLand will come from hill country where it can serve as a (soil) conservation incentive

  • Land Resources

    Land will come from CRP and pastureWhat will be the method of conversion?Can we convert from existing CRP and pasture land?Develop establishment techniques to enable swtg proliferation in mixed stands

  • Nutrient Cycling / Lower InputsTrack N cycling in the plant

  • Nutrient Cycling / Lower InputsAssociative dinitrogen fixationAssociation of micro-organisms in and around the crop roots

  • Nutrient Cycling / Lower InputsWinter legumes (perennial or annual) as a source of nitrogenMust be timed with harvest

  • Nutrient Cycling / Lower InputsOrganics/carbon sequestration over time

  • Use of By-productsCharSyngas and biooil plants getting 250,000 lbs of feedstock a day will generate volumes of this.Will application to soil affect nutrient availability?Can we create terra preta nova ?Will it be advantageous?

  • Co-ordination with Feds.DoE and its derivatives (INL, NREL, ORNL)Characterization of factors that affect quality of biomassWeathering effects on structural carbohydratesFertilizer source (esp Cl- and SO4-2)Soil type and luxury consumption of soil mineralsSpecies effects on structural carbohydratesCultivar (esp. Forestburg)USDA (ARS and NRCS)

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