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Yield Response of Corn and Soybeans to Irrigation and Drainage on a Claypan Soil
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1982
Year
Irrigation ManagementCrop ProductionPrecision AgricultureClaypan SoilEngineeringAgricultural Water ManagementLand UseSoybean Yield DataFurrow IrrigationAgricultural EconomicsSoil ManagementCrop YieldIrrigationField CropYield ResponseAbstract Five Yr
ABSTRACT FIVE yr of corn and 2 yr of soybean yield data from forty field plots with combinations of irrigation and drainage treatments are presented. The irrigation treat-ments were sprinkler, furrow, and no irrigation. The drainage treatments were surface, subsurface, surface plus subsurface, and no drainage. The plots were located on a claypan soil in south cen-tral Illinois. Sprinkler irrigation was provided with a solid set system. Furrow irrigation was done with gated pipes. The plots with surface drainage had a slope of 0.5 percent; the others were graded level. Subsurface drainage was provided with plastic tubing on 6 m centers. The data indicate average corn yield increases of 0.8 and 2.4 t/ha due to drainage and irrigation, respectively. Together, irrigation and drainage act synergistically to produce an average yield increase of 4.8 t/ha.