Exporting northwest Arkansas excess turkey and broiler litter to partially fertilize nutrient-deficient cropland in eastern Arkansas can be more cost effective than to supply all crop nutrients with chemical fertilizer only, given current high fertilizer prices. Cost savings are greater if litter is baled in ultraviolet resistant plastic and transported via truck, since backhaul opportunities reduce truck rates, or alternatively, if raw litter is shipped via a truck-barge combination. Rice is the crop that allows for greater savings according to a mathematical programming model implemented in General Algebraic Modeling System (GAMS).
ment area.o The difference column under computation and checking time shows ~he __ s~ving _ ~f time 'in minutes by the mid=seotfon me•tnod compared to the meanc=oaeotion methode •A negative figure indicate• that the mid=aect~on method took ionger to compute or check tha~ the mean=seotion methodo A aymbol was placed with the grade designation or'. the computer• ia order to olaaaify them into three"groupao TABLE 1-COMPILATION OF DISCHARGE MEASUREMENT DATA Gaging Station
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