Rooting characteristics of corn, soybeans, and barley as a function of available water and soil physical characteristics

Abstract

Maximum root depths were inversely related to available water within the limits imposed by Zea mays, Glycine max and Hordeum vulgare rooting habits and soil physical characteristics. Roots continued to develop during the reproductive growth phase and maximum root densities were found about the time of physiological maturity. Root distribution with depth was described for each crop on each soil using a modified exponential equation with an extinction coefficient specific to crop, growth stage and soil. -from Authors