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Title:   Author  item
                                            Lamb, Joannitem
                                            SHEAFFER, CRAIG - UNIVERSITY OF MINNESOTAitem
                                            Samac, Deborah

                                                         - *Debby*
  Submitted to: American Society of Agronomy Meetings
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 11/5/2000
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: In an alfalfa biomass production system, alfalfa hay will be fractionated into stem material for conversion to electricity and leaf meal to be sold as a high quality livestock protein supplement. Two Southern European and three U.S. alfalfa germplasms were established at two locations at four plant densities (450, 180, 50, and 16 plants per square meter). All alfalfa agermplasm by plant density combinations were harvested at two stages of plant maturity, early bud (3 harvests per season) and early pod (2 harvests per season). Leaf and stem percent crude protein (%CP), percent neutral detergent fiber (%NDF), and percent acid detergent fiber (%ADF) were compared among the alfalfa germplasms under the different plant density and harvest maturity treatment combinations. Leaf and stem %CP decreased as plant density and harvest maturity increased. Early pod maturity and 180 plants per square meter had the greatest leaf and stem %ADF and %NDF. The  plant density and harvest maturity treatment combinations will play a role in the profitability of an alfalfa biomass production system.


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