Abstract The incorporation of crop straw to cropland is increasingly being recommended due to its ability to improve soil fertility. Controlled-release fertilizer could enhance nitrogen (N) use efficiency and crop grain yield in a rice–wheat rotation cropping system. The effects of controlled-release fertilizer with wheat straw incorporation on rice grain yield and greenhouse gas (GHG) emissions is poorly understood. Four treatments, i.e., chemical fertilizer (CF), chemical fertilizer with straw incorporation (CF + WS), controlled-release urea with straw incorporation (CRU + WS), and no fertilizer (C), were applied to investigate the effects of CRU + WS on rice grain yield, N use efficiency and GHG emissions in multiple rice growing seasons. Relative to CF, rice grain yield from CF + WS decreased by 0.4–2.3% in 2012 and 2013 seasons but increased by 2.3–4.0% in 2014 and 2015 seasons, and significantly enhanced by 9.3% in 2016 season (p

中文翻译：

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控释肥对秸秆还田稻田水稻产量、氮素利用效率及温室气体排放的影响

摘要 由于农作物秸秆能够提高土壤肥力，因此越来越多地建议将农作物秸秆混入农田。控释肥料可以提高水稻-小麦轮作系统中氮（N）的利用效率和作物产量。掺入麦秆的控释肥料对水稻产量和温室气体 (GHG) 排放的影响知之甚少。以化肥(CF)、秸秆掺入化肥(CF+WS)、秸秆掺入控释尿素(CRU+WS)、不施化肥(C)4个处理对CRU的影响进行研究。 + WS 对多个水稻生长季节的水稻产量、氮素利用效率和温室气体排放量的影响。相对于 CF，CF + WS 的水稻籽粒产量下降了 0.4-2。