有机肥配施氮肥对滴灌春玉米产量及土壤肥力状况的影响
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王艳丽,吴鹏年,李培富,王西娜,朱旭
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Effects of organic manure combined with nitrogen fertilizer on spring maize yield and soil fertility under drip irrigation
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Yan-Li WANG,Peng-Nian WU,Pei-Fu LI,Xi-Na WANG,Xu ZHU
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表4 有机肥配施氮肥对玉米水肥利用效率的影响
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Table 4 Effects of organic manure combined with nitrogen fertilizer on water use efficiency of maize
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处理
Treatment | 产量
Yield (kg hm-2) | 氮肥偏生产力
NPFP | 氮肥农学效率
AE | 耗水量
ET (mm) | 水分利用效率
WUE (kg hm-2 mm-1) | | 2016 | 2017 | 2016 | 2017 | 2016 | 2017 | 2016 | 2017 | 2016 | 2017 | | -M-N0 | 7246 c | 8556 d | | | | | 576 a | 602 a | 12.58 d | 14.21 c | | -M+N75 | 9585 b | 9956 cd | 127.79 a | 137.18 a | 31.18 a | 23.10 a | 563 b | 583 b | 17.02 c | 17.65 b | | -M+N150 | 10972 ab | 11276 bc | 73.15 b | 72.95 b | 24.84 b | 15.91 c | 557 b | 579 c | 19.70 bc | 18.90 b | | -M+N225 | 12407 a | 12620 ab | 55.14 c | 56.09 c | 22.94 b | 18.06 b | 549 c | 572 c | 22.60 a | 22.06 a | | -M+N300 | 11918 a | 13880 a | 39.73 d | 46.27 c | 15.57 c | 17.75 b | 548 c | 565 d | 21.75 ab | 24.57 a | | +M-N0 | 11575 c | 9612 b | | | | | 537 a | 549 a | 21.55 d | 17.51 d | | +M+N75 | 12498 bc | 13054 a | 166.63 a | 174.05 a | 12.30 b | 37.01 a | 531 ab | 537 b | 23.54 c | 23.07 c | | +M+N150 | 13562 ab | 13966 a | 90.41 b | 93.11 b | 13.25 ab | 30.80 b | 523 b | 529 c | 25.93 b | 26.90 b | | +M+N225 | 14875 a | 15359 a | 66.11 c | 68.26 c | 16.15 a | 28.51 b | 513 c | 518 d | 29.65 a | 30.94 a | | +M+N300 | 14275 ab | 14363 a | 47.58 d | 48.87 d | 8.56 c | 19.17 c | 504 d | 510 e | 28.06 a | 30.12 a |
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