No-tillage with straw mulching promotes the utilization of soil nitrogen by rice under wheat–rice and oilseed rape–rice cropping systems

• DOI: 10.3389/fpls.2023.1170739
• Publication Date: 2023-05-08T04:44:44Z
• Authors: Fengjun Yan; Wei Zhou; Yongjian Sun; Changchun Guo; Kaihong Xiang; Na Li; Zhiyuan Yang; Yunxia Wu; Qiao Zhang; Yuanyuan Sun; Xiyao Wang; Jun Ma
• Keywords: Panicle; Rotation system; Transplanting; Cropping system

To investigate the effects of no-tillage with straw mulching on absorption and utilization soil nitrogen (N), fertilizer N, N by rice under paddy-upland rotations.A field experiment three cropping systems: fallow-rice rotation without (FRN), wheat-rice wheat in season (WRS), oilseed rape-rice rape (ORS) was conducted from 2015 to 2017, along a mini-plot 15N-labeled urea straws, which 2017.No-tillage reduced uptake up 20 days after transplanting, total amount WRS ORS plants 46.33 61.67 kg/ha, respectively, 9.02 45.10% higher than that FRN plants. Soil main source for growth, followed N. 21.75 26.82% plants, accounting 72.37 65.47%, accumulated Straw increased efficiency tillering, panicle, 2.84-25.30%; however, base dependent mulching. The released 34.97 24.82 respectively; only 3.04 4.82% it absorbed 0.62 0.66% N.No-tillage rotations rice, especially These results provide theoretical information effective rational application practices rice-based systems.