Agronomic research on crop response to nitrogen fertilizer suggests that a plateau function may be appropriate, but the plateau varies across fields and years. Available models that treat the plateau as a stochastic variable are not readily extendable to handle field or year random effects as...

Technology that would enable use of lignocellulosic biomass for biorefinery feedstock is under development. The 2002 Farm Bill permitted managed harvesting of biomass from Conservation Reserve Program (CRP) land. This study was conducted to determine the cost to procure, harvest, store, and...

Switchgrass and forage sorghum have both been proposed as potential candidates for high yielding, dedicated energy crops. This research was conducted to determine and compare the costs to produce and deliver switchgrass and forage sorghum biomass under the assumptions that the biomass would be...