磷对花生氮素吸收和利用的影响

于天一,李晓亮,路亚,孙学武,郑永美,吴正锋,沈浦,王才斌

Effect of phosphorus (P) on nitrogen (N) uptake and utilization in peanut

Tian-Yi YU,Xiao-Liang LI,Ya LU,Xue-Wu SUN,Yong-Mei ZHENG,Zheng-Feng WU,Pu SHEN,Cai-Bin WANG

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

Table 3 Nitrogen use efficiency, nitrogen pod production efficiency and agronomic efficiency of phosphorus fertilizer under different varieties and P rates

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