2Crop year 1974 is the initial year due to the acceptance of the Florunner variety over the traditional Spanish variety.
Peanut (Arachis hypogaea L.) yields in the Southeast declined 368 kgha during the 1980's and 596 kgha in the late 1980's when compared to the 1974-1979 period. The peanut yield decline was correlated with significant meteorological and policy changes in the Southeast during each time period. Meteorological changes were statistically estimated to decrease peanut yield by 137 kgha and 194 kgha in the 1980's and late 1980's, respectively. The effect on peanut yields from changes in agricultural policy and management decisions was estimated at -166 kgha and -225 kgha during the respective time periods. Field data gathered during crop years 1987-1990 reflected the meteorological and policy changes during the late 1980's in both non-irrigated and irrigated peanut fields. EXNUT, an expert systems model for peanut irrigation and pest management, was evaluated in 1987, 1988, 1989, and 1990 against expert farmers in the Southeast and increased peanut yields by 204 kgha. Evaluation of EXNUT demonstrated one example of how expert system technology can offer economically feasible solutions to the peanut yield decline in the Southeast.
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Keywords: Arachis hypogaea L, peanut yield decline, EXNUT, Expert Systems, economically feasible solutions, Crop rotation, crop insurance, management
How to Cite:
Lamb, M. & Davidson, J. & Butts, C., (1993) “Peanut Yield Decline in the Southeast and Economically Feasible Solutions”, Peanut Science 20(1), p.36-40. doi: https://doi.org/10.3146/i0095-3679-20-1-10