耕作与秸秆还田方式对稻田N2O排放、水稻氮吸收及产量的影响
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冯珺珩,黄金凤,刘天奇,曹凑贵,李成芳
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Effects of tillage and straw returning methods on N2O emission from paddy fields, nitrogen uptake of rice plant and grain yield
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Jun-Heng FENG,Jin-Feng HUANG,Tian-Qi LIU,Cou-Gui CAO,Cheng-Fang LI
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表4 2016-2017年不同处理水稻氮吸收量与产量的变化
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Table 4 Changes of total N uptake and grain yields in different treatments of rice in 2016 and 2017
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年份
Year | 处理
Treatment | 氮吸收量
N uptake | 产量
Grain yield | | 2016 | 翻耕+前季作物秸秆不还田 CTNS | 156.51±15.15 b | 7379±252 b | | 翻耕+前季作物秸秆全量还田 CTS | 179.81±11.69 a | 8795±306 a | | 免耕+前季作物秸秆不还田 NTNS | 140.86±20.13 b | 7318±145 c | | 免耕+前季作物秸秆全量还田 NTS | 194.86±18.89 a | 7752±143 ab | | ANOVA | | | | 耕作方式Tillage practices (T) | ns | ns | | 秸秆管理Straw managements (S) | ** | * | | T×S | * | ns | | 2017 | 翻耕+前季作物秸秆不还田 CTNS | 203.32±9.99 bc | 7302±338 b | | 翻耕+前季作物秸秆全量还田 CTS | 220.25±11.54 a | 8086±177 a | | 免耕+前季作物秸秆不还田 NTNS | 184.34±10.54 c | 7549±122 b | | 免耕+前季作物秸秆全量还田 NTS | 215.90±8.97 a | 8168±41 a | | ANOVA | | | | 耕作方式Tillage practices (T) | ns | ns | | 秸秆管理Straw managements (S) | * | * | | T×S | * | ns |
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