Impact of Tillage and Straw Treatment Methods on Rice Growth and Yields in a Rice–Ratoon Rice Cropping System

The rice–ratoon rice cropping system has the advantages of saving labor and imparting economic benefits. Optimizing tillage straw management is beneficial for improving ratoon growth yield. In this study, field experiments were conducted to examine effects four managements on yield a in central China 2020 2021. included no-till with main-season ratoon-season residues retained soil’s surface (NT+S), plow residue retention (CT+S), removed (NT-S), (CT-S). Compared NT, CT significantly increased by 33.70% 29.12% main seasons, respectively. removal, returning 13.37% 27.29% general, both improved root function (root activity dry weight) photosynthetic capacity (leaf area index, net rate, leaf chlorophyll content). combined was able achieve highest annual