滴灌施肥对两种典型作物系统土壤N2O排放的影响及其调控差异
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雷豪杰,李贵春,柯华东,魏崃,丁武汉,徐驰,李虎
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Analysis of Impacts and Regulation Differences on Soil N2O Emissions from Two Typical Crop Systems Under Drip Irrigation and Fertilization
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LEI HaoJie,LI GuiChun,KE HuaDong,WEI Lai,DING WuHan,XU Chi,LI Hu
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表2 各处理施肥量和灌溉量
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Table 2 Total fertilizer and irrigation rate in different treatments
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试验点
Site | 处理
Treatment | 有机肥
Organic fertilizer (kg N·hm-2) | 化肥 Fertilizer (kg N·hm-2) | 灌溉方式
Irrigation method | 总灌溉量
Irrigation water (mm) | 施肥灌溉日期
Date | | N | P2O5 | K2O | 顺义
Shunyi | CK | 500 | 0 | 120 | 200 | 漫灌Flood | 365 | 9/13;10/12;11/1;11/20;12/4 | | FP | 500 | 700 | 120 | 200 | 漫灌Flood | 365 | | FPD | 500 | 700 | 120 | 200 | 滴灌Drip | 269 | | OPTD | 500 | 350 | 120 | 200 | 滴灌Drip | 269 | 桓台
Huantai | CK | — | 0 | 84.7 | 118.3 | 漫灌Flood | 591 | 10/14;11/7;4/6;4/30;5/13;5/28 | | FP | — | 270 | 84.7 | 118.3 | 漫灌Flood | 591 | | FPD | — | 270 | 84.7 | 118.3 | 滴灌Drip | 591 | | OPTD | — | 189 | 84.7 | 118.3 | 滴灌Drip | 591 |
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