No-tillage with straw mulching increased maize yield and nitrogen fertilizer recovery rate in northeast China

• DOI: 10.1016/j.agwat.2024.108687
• Publication Date: 2024-01-18T15:13:24Z
• Authors: Fang Song; Ming Liu; Zhongxue Zhang; Zhijuan Qi; Tiecheng Li; Sicheng Du; Ao Li; Jie Liu
• Keywords: Conventional tillage

Long-term intensive tillage has led to soil environment degradation, reduced fertility, difficulty in increasing maize yield, and low nitrogen (N) use efficiency the Mollisol region of northeast China. In order raise yield improve hydrothermal environment, we conducted field experiments investigate effects different practices straw returning on N fertilizer recovery loss, aiming increase both rate. Four treatments were established: flat no-tillage with full mulching (NM), ridge (RM), rotary incorporation (RR), conventional without (CK) as control treatment. The two-year results indicate that increased 15N rate, accompanied by improvements water content (SWC) regulation temperature changes, compared CK Specifically, total rate RM was significantly 15.23% 23.46%, while losses notably 14.99% 25.12%, respectively, NM RR treatments. Additionally, 3.10% 2021 1.97% 2022 (P < 0.05), it 2.06% 0.91% > 0.05). mean SWC 0–100-cm layer 7.99% 5.74% 8.09%, 5.50% during growth seasons. At 60–80 days after sowing (DAS), when air higher, lower than treatments, 0.46 ℃ 0.54 0.31 0.70 2022. However, decreased at 100–140 DAS, 0.69 0.81 0.73 0.94 Our study indicates treatment is most suitable practice method