Effects of crop residue managements and tillage practices on variations of soil penetration resistance in sloping farmland of Mollisols

Soil penetration resistance (SPR) is one of the major indicators soil physical properties. Crop residue managements, tillage practices and their interactions exert significant effects on SPR. However, rare information available in sloping farmland Mollisols. Field experiments were conducted to investigate variations SPR as affected by crop managements land Northeast China from 2015 2019. The split-plot experiment was arranged with two (removed, REM retained, RET), three (no tillage, NT; rotary RT; plow PT). data 0-80 cm depth measured at end harvest maize monoculture. Results showed that induced 0-15 cm, 15-30 depths under NT, RT, PT treatments, respectively. In comparison RET treatment, average values treatment 10.9% 8.9% higher 45-60 60-80 depths, 12.4% 14.1% lower depth, 23.9% 10.4% than those NT RT treatments. value 11.2% 22.0% generally decreased slope position declined deeper (except for NT+RET treatment). findings this research can provide a scientific reference establishment rational cultivation sustainable development productivity Mollisols cold regions. Keywords: resistance, management, practice, position, DOI: 10.25165/j.ijabe.20221501.6526 Citation: Wang Y J, Qiao J Y, Ji W Sun Huo D X, Liu P, et al. Effects Int Agric & Biol Eng, 2022; 15(1): 164–171.