磷肥运筹对机插双季稻产量构成与养分吸收利用的影响

肖敏, 郭浪, 崔璨, 程周琦, 刘玉午, 卓乐, 吴思, 易镇邪

Effects of Phosphate Fertilizer Management on Yield Components and Nutrient Uptake and Utilization in Mechanical Transplanting Double-Cropping Rice

Xiao Min, Guo Lang, Cui Can, Cheng Zhouqi, Liu Yuwu, Zhuo Le, Wu Si, Yi Zhenxie

表11 2021年各磷肥处理双季稻氮、磷、钾素利用效率

Table 11 Utilization efficiency of nitrogen, phosphorus and potassium of double-cropping rice under different phosphorus fertilizer treatments in 2021

季别 Season 处理 Treatment 氮素利用效率 Nitrogen utilization efficiency (kg/kg) 氮肥偏生产力 Partial productivity of nitrogen fertilizer (kg/kg) 磷素利用效率 Phosphorus utilization efficiency (kg/kg） 磷肥偏生产力 Partial productivity of phosphorus fertilizer (kg/kg) 磷肥利用率 Utilization rate of phosphorus fertilizer (%) 钾素利用效率 Potassium utilization efficiency (kg/kg) 钾肥偏生产力 Partial productivity of potassium fertilizer (kg/kg) 早稻 Early rice P45S1 118.78b 52.20c 531.93a 174.00a 12.13b 101.74b 52.20bc P45S2 126.43a 51.73c 489.90b 172.44a 14.62a 110.32a 51.73c P75S1 113.29c 58.20a 439.58c 116.40b 14.13a 101.52b 58.20a P75S2 122.83a 54.20b 482.21b 108.40b 10.13c 99.33b 54.20b P105S1 101.24d 53.27bc 398.31d 76.10c 10.29c 91.59c 53.27bc P105S2 103.56d 52.60bc 404.82e 75.14c 9.74d 92.10c 52.60bc P0 124.32a 46.51c 753.78a － － 105.68a 46.51c $\bar{P45}$ 122.61a 51.97b 510.92b 173.22a 13.38a 106.03a 51.97b $\bar{P75}$ 118.06b 56.20a 460.90c 112.40b 12.13a 100.43b 56.20a $\bar{ P105}$ 102.40c 52.94b 401.57d 75.62c 10.02b 91.85c 52.94b $\bar{S1}$ 111.10b 54.56a 456.61a 122.17a 12.18a 98.28b 54.56a $\bar{S2}$ 117.61a 52.84a 458.98a 118.66a 11.50b 100.58a 52.84a 晚稻 Late rice P45S1 80.49a 64.47c 353.05b 214.89a 13.24b 108.24b 64.47c P45S2 82.14a 66.40bc 349.60b 221.33a 15.69a 109.86b 66.40bc P75S1 74.53c 67.20b 372.23a 134.40b 7.53d 118.38a 67.20b P75S2 77.09b 70.07a 320.82c 140.13b 15.11a 107.63b 70.07a P105S1 71.68d 66.13bc 296.83d 94.48c 11.42c 101.02c 66.13bc P105S2 71.39d 66.53bc 282.48d 95.05c 13.24b 97.68c 66.53b P0 89.71a 61.43c 430.24a － － 122.97a 61.43c $\bar{P45}$ 81.32b 65.44b 351.33b 218.11a 14.47a 109.05c 65.44b $\bar{P75}$ 75.81c 68.64a 346.53c 137.27b 11.32b 113.01b 68.64a $\bar{ P105}$ 71.54d 66.33ab 289.66d 94.77c 12.33b 99.35d 66.33b $\bar{S1}$ 75.57a 65.93a 340.70a 147.92a 10.73b 109.21a 65.93a $\bar{S2}$ 76.87a 67.67a 317.63b 152.17a 14.68a 105.06b 67.67a