Climate proofing maize through optimizing manure fertilization

文献类型： 外文期刊

第一作者： Cai, Yurong

作者： Cai, Yurong;Chang, Naijie;Wang, Ligang;Wei, Heya;Liang, Xia;Cai, Yurong;Chen, Deli;Liang, Xia;Cai, Yurong;Li, Frank Yonghong;Cai, Yurong;Li, Frank Yonghong;Li, Jianzheng

作者机构：

关键词： APSIM model; Future climate change scenarios; Maize crop yield; Nitrous oxide emissions; Soil organic carbon

期刊名称：JOURNAL OF CLEANER PRODUCTION （ 影响因子：10.0； 五年影响因子：10.7 ）

ISSN： 0959-6526

年卷期： 2025 年 512 卷

页码：

收录情况： SCI

摘要： Optimizing nitrogen fertilizers use can improve maize yields, soil fertility, and decrease greenhouse gas emissions, but it remains uncertain as to what impact it will continue to have in the context of ongoing climatic changes. In this research, we use long-term field experimental data and the Agricultural Production Systems sIMulator (APSIM) model to evaluate the impact of combining manure with chemical fertilizers on spring maize yield, soil organic carbon (SOC) content, and nitrous oxide (N2O) emissions. Using four future climate scenarios (SSP126, SSP245, SSP370, and SSP585) based on Global Climate Models (GCMs), the APSIM model showed climate change will reduce the maize yield and SOC content compared to the preceding decade. Increasing manure use could mitigate the decrease in maize yield and SOC content under future climate scenarios in contrast to current practices, however, this would in all climate scenarios promote nitrous oxide (N2O) emissions. Evaluating crop productivity, soil health, environmental impact, and economic considerations, this study recommends replacing 50 % of the nitrogen in farmers' conventional chemical fertilization practices with manure (RFP0.5) as the optimal approach. This approach is a perfect balance which effectively mitigates maize yields and SOC loss in response to future climate change, while also addressing greenhouse gas emissions.

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