Add to ORKGSampling of a Webster till soil for soil moisture showed significant variability from corn hill to corn hill, with small variability between samples taken 1 foot apart. Variation between hills increased with depth down to 5 feet. Variation between replications was greatest in the surface foot. Spacing was significant at 2 to 3 feet. Sampling of a Webster till soil for soil moisture showed significant variability from corn hill to corn hill, with small variability between samples taken 1 foot apart. Variation between hills increased with depth down to 5 feet. Variation between replications was greatest in the surface foot. Spacing was significant at 2 to 3 feet