Effect of spatial arrangement and thinning date of corn on yield of peanut in a corn-peanut intercropping
1987
Morales, A.C. | Carangal, V.R. (International Rice Research Inst., Los Banos, Laguna (Philippines))
A field trial of corn and peanut grown in monoculture and in association was conducted to determine the effect of varying row spacings and thinning dates of corn intercrop on the yield and yield attributes of peanut. Peanut shelled bean and fodder yields were significantly reduced by as much as 75% when intercropped with corn spaced 75 cms apart between rows and thinned 50 days after planting. Number of pods per plant was also significantly reduced with closer row spacing and late thinning of corn. The intercropped peanut plants also have sparse leaf density with a tall canopy profile compared to the monoculture. A highly significant increase (28-50%) in total fodder dry matter production of corn was obtained mainly due to the additional fodder harvested 25 and 50 days after planting. Row spacing of 75 cms between corn intercrop thinned 50 days after planting gave the highest fodder dry matter yield (7.57 t/ha). No appreciable effect on grain production, was, however, obtained with the cropping systems used in this experiment.
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