油菜-水稻复种系统一次性施肥对CH4和N2O净排放的影响
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徐驰, 谢海宽, 丁武汉, 戴震, 张婧, 王立刚, 李虎
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The Impacts of CH4 and N2O Net Emission Under One-Off Fertilization of Rape-Paddy Replanting System
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Chi XU, HaiKuan XIE, WuHan DING, Zhen DAI, Jing ZHANG, LiGang WANG, Hu LI
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| 表1 油菜-水稻复种期内氮肥施肥种类和施肥量 |
| Table 1 The different types and amounts of nitrogen fertilizers during the whole periods |
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处理
Treatment | 氮肥种类
Types of fertilizers | 施肥方式
Nitrogen supply methods | 氮肥用量Level of N fertilizers (kg N·hm-2) | | 油菜Rape | 水稻Paddy | | CK | - | - | - | - | | FP | 尿素Urea | 60%基肥+20%越冬+20%抽薹前期(油菜)
60% Base fertilizer + 20% Overwintering + 20% Prophase of bolting (Rape)
70%基肥+30%分蘖肥(水稻)
70% Base fertilizer + 30% Tillering stage dressing (Rice) | 210 | 210 | | OPT | 尿素Urea | 60%基肥+20%越冬+20%抽薹前期(油菜)
60% Base fertilizer + 20% Overwintering + 20% Prophase of bolting(Rape)
50%基肥+25%分蘖肥+25%穗肥(水稻)
50% Base fertilizer + 25% Tillering stage dressing + 25% Panicle fertilizer (Rice) | 165 | 165 | | UA | 尿素Urea | 全部基施All basal fertilization | 165 | 165 | | CRF | CRF | 全部基施All basal fertilization | 165 | 165 |
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