| 秸秆全量还田下施用过氧化钙对南方双季稻产量和稻田温室气体排放的影响 |
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| 引用本文： | 何宇轩,李雅娟,周明卓,眭锋,吕伟生,张俊,曾勇军,黄山.秸秆全量还田下施用过氧化钙对南方双季稻产量和稻田温室气体排放的影响[J].作物杂志,2022,38(1):116-1830. |
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| 作者姓名： | 何宇轩 李雅娟 周明卓 眭锋 吕伟生 张俊 曾勇军 黄山 |
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| 作者单位： | 1教育部和江西省作物生理生态与遗传育种重点实验室/江西农业大学农学院,330045,江西南昌2江西省红壤研究所/江西省红壤耕地保育重点实验室/农业农村部江西耕地保育科学观测实验站,331717,江西南昌3中国农业科学院作物科学研究所,100081,北京 |
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| 基金项目： | 国家重点研发计划项目(2016YFD0300903);大学生创新创业训练计划项目(S202010410004)。 |
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| 摘 要： | 为探明秸秆全量还田条件下施用过氧化钙（CaO2）对南方双季水稻产量和稻田温室气体排放的影响,设置不施CaO2（CK）和早稻旋耕前一次性施用CaO2 2个处理,采用静态暗箱–气相色谱法监测稻田温室气体排放,以明确秸秆全量还田下施用CaO2对双季稻产量、稻田温室气体排放、综合温室效应（GWP）和温室气体排放强度（GHGI）的影响。结果表明,与CK相比,施用CaO2显著增加了2018和2019年晚稻产量,增幅分别为3.44%和2.65%,但对早稻产量无显著影响。施用CaO2显著降低了早稻季CH4累积排放量、GWP和GHGI,降幅分别为14.73%、14.74%和15.09%,但是对N2O累积排放量无显著影响。施用CaO2对晚稻季CH4和N2O排放均无显著影响。与CK相比,施用CaO2显著增加了2018和2019年的周年产量,增幅分别为1.93%和2.58%;但对CH4和N2O累积排放量、GWP及GHGI均无显著影响。因此,施用CaO2有助于协同实现双季稻增产和稻田温室气体减排。
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| 关 键 词： | 双季稻 过氧化钙 产量 温室气体排放 |
| 收稿时间： | 2021-01-21 |
Effects of Calcium Peroxide Application on Yield and Greenhouse Gas Emissions under Full-Rate Straw Returning in a Double Rice-Cropping System |
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| He Yuxuan,Li Yajuan,Zhou Mingzhuo,Sui Feng,LüWeisheng,Zhang Jun,Zeng Yongjun,Huang Shan.Effects of Calcium Peroxide Application on Yield and Greenhouse Gas Emissions under Full-Rate Straw Returning in a Double Rice-Cropping System[J].Crops,2022,38(1):116-1830. |
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| Authors: | He Yuxuan Li Yajuan Zhou Mingzhuo Sui Feng LüWeisheng Zhang Jun Zeng Yongjun Huang Shan |
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| Affiliation: | (Key Laboratory of Crop Physiology,Ecology and Genetic Breeding of Ministry of Education and Jiangxi/College of Agriculture,Jiangxi Agricultural University,Nanchang 330045,Jiangxi,China;Jiangxi Institute of Red Soil/Jiangxi Key Laboratory of Red Soil Arable Land Conservation/Scientific Observational and Experimental Station of Arable Land Conservation in Jiangxi,Ministry of Agriculture and Rural Affairs,Nanchang 331717,Jiangxi,China;Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China) |
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| Abstract: | In order to explore the effects of applying calcium peroxide (CaO2) on rice yield and greenhouse gas emissions in southern double-cropping rice under the condition of returning full straw to the field, this experiment set no CaO2 (CK) and a one-time application of CaO2 before rotary tillage of early rice. In this process, static dark box-gas chromatography was used to monitor greenhouse gas emissions from rice fields to determine the effects of CaO2 on double-cropping rice yield, greenhouse gas emissions, comprehensive greenhouse effect (GWP) and greenhouse gas emission intensity (GHGI). The results showed that compared with CK, the application of CaO2 significantly increased the yield of late rice in 2018 and 2019 by 3.44% and 2.65%, respectively, but had no significant effect on the yield of early rice. The application of CaO2 significantly reduced the cumulative emission of CH4, GWP and GHGI in the early rice season by 14.73%, 14.74% and 15.09%, respectively, but had no significant effect on the cumulative emission of N2O. The application of CaO2 had no significant effect on CH4 and N2O emissions in late rice season. Compared with CK, the application of CaO2 significantly increased the annual yield in 2018 and 2019 by 1.93% and 2.58% respectively; however, there was no significant effect on the annual cumulative emissions of CH4 and N2O, GWP and GHGI. Therefore, the application of CaO2 could help to achieve a synergistic increase in double-cropping rice yield and greenhouse gas emission reduction in rice fields. |
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| Keywords: | Double rice Calcium peroxide Yield Greenhouse gas emission |
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