| 秸秆全量还田下晚稻季翻耕对双季稻田温室气体排放和产量的影响 |
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| 引用本文： | 唐刚,廖萍,眭锋,吕伟生,张俊,曾勇军,黄山.秸秆全量还田下晚稻季翻耕对双季稻田温室气体排放和产量的影响[J].作物杂志,2021,37(6):101-975. |
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| 作者姓名： | 唐刚 廖萍 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赣州市烟草科学研究所,341000,江西赣州3江西省红壤研究所,331717,江西南昌4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(2016YFD0300903) |
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| 摘 要： | 翻耕有利于秸秆还田,为了探究秸秆全量还田下不同耕作措施对双季稻产量和温室气化排放的影响,在晚稻季设置浅旋耕和翻耕2个处理,采用静态暗箱–气相色谱法连续监测当季晚稻和第2年早稻季稻田温室气体排放,以阐明秸秆全量还田下晚稻季翻耕对稻田甲烷（CH4）和氧化亚氮（N2O）排放及产量的影响。与浅旋耕处理相比,晚稻季翻耕显著降低了当季晚稻CH4累积排放量（19.04%）、综合温室效应（19.19%）和温室气体排放强度（22.02%）,而对N2O累积排放量无显著影响。晚稻季翻耕对第2年早稻季稻田温室气体排放无显著影响。可见,翻耕的减排效应只体现在当季。此外,浅旋耕和翻耕处理对当季晚稻和第2年早稻产量及其构成均无显著影响。短期来看,秸秆全量还田下晚稻季翻耕有利于协同实现双季稻稳产和稻田温室气体减排。
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| 关 键 词： | 双季稻 耕作方式 温室气体排放 产量 |
| 收稿时间： | 2020-11-04 |
Effects of Moldboard Plow Tillage under all Straw Returning in Late Rice Season on Greenhouse Gas Emissions and Yield in Double Rice-Cropping System |
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| Tang Gang,Liao Ping,Sui Feng,Lü,Weisheng,Zhang Jun,Zeng Yongjun,Huang Shan.Effects of Moldboard Plow Tillage under all Straw Returning in Late Rice Season on Greenhouse Gas Emissions and Yield in Double Rice-Cropping System[J].Crops,2021,37(6):101-975. |
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| Authors: | Tang Gang Liao Ping Sui Feng Lü Weisheng Zhang Jun Zeng Yongjun Huang Shan |
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| Institution: | 1Ministry of Education and Jiangxi Key Laboratory of Crop Physiology, Ecology and Genetic Breeding/College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China2Ganzhou Institute of Tobacco Sciences, Ganzhou 341000, Jiangxi, China3Jiangxi Institute of Red Soil, Nanchang 331717, Jiangxi, China4Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | Moldboard plough tillage (PT) is beneficial for returning straw to the field. In order to explore the influence of different farming measures on double-season rice yield and greenhouse gas emissions, a field trial of two treatments, rotary tillage (RT) and PT, were conducted to examine the effects of PT in late season with full incorporation of straw on CH4 and N2O emissions, and grain yield. The CH4 and N2O fluxes were measured using a static chamber gas chromatography method in current late season and early season of next year. The results showed that PT significantly reduced CH4 accumulation emissions flux, global warming potential and greenhouse gas intensity in the current late season by 19.04%, 19.19% and 22.02%, respectively, compared to RT. However, no significant influence of tillage on N2O emissions was found. In addition, greenhouse gas emissions were not significantly affected by tillage in the next early season. Thus, the effect of PT on the reduction of greenhouse gas emissions only appeared in the current late season. In addition, the grain yield and its components in both seasons were not different between PT and RT. In the short term, plowing in late rice therefore benefited the reduction of greenhouse gas emissions without impairing the rice yield with full straw incorporation |
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| Keywords: | Double rice-cropping system Tillage practice Greenhouse gas emissions Yield |
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