磷对花生氮素吸收和利用的影响
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于天一,李晓亮,路亚,孙学武,郑永美,吴正锋,沈浦,王才斌
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Effect of phosphorus (P) on nitrogen (N) uptake and utilization in peanut
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Tian-Yi YU,Xiao-Liang LI,Ya LU,Xue-Wu SUN,Yong-Mei ZHENG,Zheng-Feng WU,Pu SHEN,Cai-Bin WANG
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表3 不同品种及磷水平条件下氮肥利用率、氮肥荚果利用效率和磷肥农学效率
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Table 3 Nitrogen use efficiency, nitrogen pod production efficiency and agronomic efficiency of phosphorus fertilizer under different varieties and P rates
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年份 Year | 施磷量 P rate | 氮肥利用率 Nitrogen use efficiency (%) | | 氮素荚果利用率 Nitrogen pod production efficiency (kg kg-1) | | 磷肥农学效率 Agronomic efficiency of phosphorus fertilizer (kg kg-1) | 花育22号 Huayu 22 | 花育20号 Huayu 20 | 花育22号 Huayu 22 | 花育20号 Huayu 20 | 花育22号 Huayu 22 | 花育20号 Huayu 20 | 2015 | 0 | 30.93±0.83 b | 40.81±3.00 a | | 18.64±0.61 ab | 19.06±0.35 a | | — | — | | 45 | 32.54±0.45 ab | 42.60±0.16 a | | 19.08±0.68 a | 19.08±0.13 a | | 8.00±0.85 a | 10.51±1.19 a | | 90 | 33.17±2.66 ab | 43.23±1.24 a | | 19.02±0.27 a | 18.72±0.14 ab | | 5.57±0.74 b | 6.13±0.49 b | | 135 | 34.01±2.01 a | 43.43±1.84 a | | 18.56±0.37 ab | 18.70±0.23 ab | | 4.01±0.45 bc | 4.53±0.92 bc | | 180 | 34.10±0.58 a | 41.60±0.94 a | | 17.77±0.27 b | 18.55±0.23 b | | 3.08±0.61 c | 3.19±0.16 c | 2016 | 0 | 20.18±0.90 b | 17.05±0.96 b | | 19.40±1.33 a | 21.34±0.95 a | | — | — | | 45 | 22.61±1.68 a | 18.32±1.76 ab | | 19.60±0.37 a | 21.51±0.70 a | | 7.42±0.68 a | 6.73±1.13 a | | 90 | 22.83±0.46 a | 18.51±1.18 ab | | 19.00±0.32 a | 21.40±0.60 a | | 5.11±0.67 b | 3.36±1.08 b | | 135 | 23.34±0.35 a | 18.90±1.53 ab | | 18.36±0.30 ab | 21.29±0.18 a | | 3.72±0.57 bc | 3.53±0.42 b | | 180 | 22.94±0.67 a | 19.93±2.00 a | | 17.31±0.53 b | 19.73±0.59 b | | 2.61±0.27 c | 2.48±0.46 b | 显著性 Significance (F-value) | | | | | 年份Year (Y) | ** | ** | ** | 品种Variety (V) | ** | ** | ns | 施磷量P rate (P) | ** | ** | ** | 年份×品种 Y×V | ** | ** | ns | 年份×施磷量Y×P | ns | ns | ns | 品种×施磷量V×P | ns | ns | ns |
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