水肥“三匀”技术对水稻水、氮利用效率的影响
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杨志远,李娜,马鹏,严田蓉,何艳,蒋明金,吕腾飞,李郁,郭翔,胡蓉,郭长春,孙永健,马均
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Effects of methodical nitrogen-water distribution management on water and nitrogen use efficiency of rice
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Zhi-Yuan YANG,Na LI,Peng MA,Tian-Rong YAN,Yan HE,Ming-Jin JIANG,Teng-Fei LYU,Yu LI,Xiang GUO,Rong HU,Chang-Chun GUO,Yong-Jian SUN,Jun MA
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表6 水氮管理对不同氮效率水稻氮素积累及氮肥利用的影响
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Table 6 Effects of nitrogen-water management modes on N accumulation and N fertilizer utilization of hybrid rice with different N use efficiencies
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因素 Factor | 处理 Treatment | 试验1 Exp.1 | 试验2 Exp.2 | 试验3 Exp.3 | 总吸氮量 TNA (kg hm-2) | 氮肥回收 率 NRE (%) | 氮肥农学利 用率NAE (kg kg-1) | 总吸氮量 TNA (kg hm-2) | 氮肥回收 率 NRE (%) | 氮肥农学利 用率NAE (kg kg-1) | 总吸氮量 TNA (kg hm-2) | 品种 Cultivar (C) | D4103 | 150.65 a | 51.56 a | 19.07 a | 171.06 a | 48.60 a | 17.40 a | 202.35 a | F498 | — | — | — | — | — | — | 200.31 a | Y3724 | 140.71 b | 48.53 a | 17.72 a | 158.77 b | 42.94 a | 15.87 a | 173.82 b | C6203 | — | — | — | — | — | — | 173.11 b | 氮肥管理 Nitrogen management (N) | CTF | 108.42 d | — | — | 126.39 d | — | — | — | FU | 176.20 b | 45.18 b | 12.01 c | 185.65 b | 39.51 c | 10.76 c | 175.50 c | CTN | 110.59 cd | — | — | 135.39 d | — | — | — | NWC | 186.25 a | 50.44 a | 18.99 b | 204.64 a | 46.14 b | 18.00 b | 196.73 a | CTM | 113.60 c | — | — | 137.67 c | — | — | — | MNWD | 179.01 b | 54.51 a | 24.19 a | 199.69 a | 51.67 a | 21.14 a | 189.96 b | F值 F-value | C | 94.74** | 4.67NS | 3.94NS | 408.63** | 13.62NS | 0.68NS | 173.71** | N | 39.00** | 9.74** | 85.00** | 179.92** | 14.72** | 48.79** | 60.55** | N*C | 0.57NS | 0.08NS | 0.82NS | 0.79NS | 0.68NS | 0.30NS | 1.42NS |
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