Abstract

Based on experience with developing and using a model of switchgrass growth it is argued that generic plant growth models can be used to evaluate new crops or new uses for crops in a timely fashion. Programming the model using a spreadsheet template makes model modification easy, but is less efficient for simulation and data handling. The preliminary switchgrass analysis indicates that the production costs for this product may be competitive with crop residue costs, and that an extensive management strategy of no or low nitrogen fertilizer application and harvest of mature forage would maximize returns and be risk efficient.

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