Crowell Bowers Bowers, C. G., Collins, C. A., & Harris, E. P. (2006). Low soil moisture planting of cotton for optimum emergence. Applied Engineering in Agriculture, 22(6), 801–808. https://doi.org/10.13031/2013.22248 Chukwu, E., & Bowers, C. G. (2005). Instantaneous multiple-depth soil mechanical impedance sensing from a moving vehicle. Transactions of the ASAE, 48(3), 885–894. https://doi.org/10.13031/2013.18492 Automatic depth control of a seed planter based on soil drying front sensing. (1997). Transactions of the ASAE, 40(2), 295–305. Bowers, C. G. (1989). Tillage draft and energy measurements for twelve southeastern soil series. Transactions of the ASAE, 32(5), 1492. https://doi.org/10.13031/2013.31178