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9 2021年各磷肥处理双季稻氮、磷、钾素积累量与吸收效率

Table 9 Accumulation and absorption efficiency of nitrogen, phosphorus and potassium in double-cropping rice under different phosphorus fertilizer treatments in 2021

季别 Season 处理 Treatment 氮素吸收总量 Total nitrogen absorption (kg/hm2) 氮素吸收效率 Nitrogen absorption efficiency (kg/kg) 磷素吸收总量 Total phosphorus absorption (kg/hm2) 磷素吸收效率 Phosphorus absorption efficiency (kg/kg) 钾素吸收总量 Total potassium absorption (kg/hm2) 钾素吸收效率 Potassium absorption efficiency (kg/kg) 早稻 Early rice P45S1 65.92b 0.44b 14.72c 0.33a 76.96c 0.51c P45S2 61.38c 0.41b 15.84b 0.35a 70.34c 0.47d P75S1 77.06a 0.51a 19.86a 0.26b 85.99a 0.55b P75S2 66.19b 0.44b 16.86b 0.22bc 81.85b 0.55b P105S1 78.92a 0.53a 20.06a 0.19c 87.24a 0.58a P105S2 76.19a 0.51a 19.49a 0.19c 85.62ab 0.57ab P0 56.90d 0.38d 9.26d － 73.19c 0.49b $\bar{P45}$ 63.65c 0.42c 15.28c 0.34a 73.65c 0.49b $\bar{P75}$ 71.63b 0.48b 18.36b 0.24b 83.92b 0.56a $\bar{ P105}$ 77.56a 0.52a 19.78a 0.19c 86.43a 0.58a $\bar{S1}$ 73.97a 0.49a 18.21a 0.26a 83.40a 0.56a $\bar{S2}$ 67.92b 0.45b 17.40a 0.25a 79.27b 0.53b 晚稻 Late rice P45S1 120.14c 0.80b 27.39cd 0.61a 89.34c 0.60b P45S2 121.25c 0.81b 28.49c 0.63a 90.66c 0.60b P75S1 135.24b 0.90a 27.08d 0.36c 85.15d 0.57c P75S2 136.34ab 0.91a 32.76b 0.44b 97.65b 0.65a P105S1 138.40ab 0.92a 33.42b 0.32e 98.20b 0.65a P105S2 139.80a 0.93a 35.33a 0.34d 102.17a 0.68a P0 109.75c 0.73c 21.43d － 78.30c 0.52c $\bar{P45}$ 120.70b 0.80b 27.94c 0.62a 90.00b 0.60b $\bar{P75}$ 135.79a 0.91a 29.92b 0.40b 91.40b 0.61b $\bar{ P105}$ 139.10a 0.93a 34.38a 0.33c 100.19a 0.67a $\bar{S1}$ 131.26a 0.88a 29.30b 0.43b 90.90b 0.61b $\bar{S2}$ 132.46a 0.89a 32.19a 0.47a 96.83a 0.65a