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7 2021年各磷肥处理晚稻产量及其构成因素

Table 7 Yield and its components of late rice under different phosphate fertilizer treatments in 2021

处理 Treatment 有效穗数 Effective panicle number (×106/hm2) 穗粒数 Number of grains per panicle 结实率 Seed-setting rate (%) 千粒重 1000-grain weight (g) 理论产量 Theoretical yield (t/hm2) 实际产量 Actual yield (t/hm2) P45S1 4.64a 138.18b 64.52bc 23.99a 9.92c 9.67c P45S2 4.57a 137.46b 66.99ab 24.20a 10.18bc 9.96bc P75S1 4.54a 137.70b 68.00a 24.24a 10.30b 10.08b P75S2 4.59a 141.90ab 67.50a 24.32a 10.70a 10.51a P105S1 4.53a 146.92a 63.52c 23.88a 10.10bc 9.92bc P105S2 4.54a 145.82a 64.62bc 23.76a 10.16bc 9.98bc P0 4.27b 133.11c 68.24a 24.40a 9.46c 9.22c $\bar{P45}$ 4.61a 137.82bc 65.76ab 24.10a 10.05b 9.82b $\bar{P75}$ 4.57a 139.80b 67.75a 24.28a 10.50a 10.30a $\bar{ P105}$ 4.54a 146.37a 64.07b 23.82a 10.13b 9.95b $\bar{S1}$ 4.57a 140.93a 65.35a 24.04a 10.11a 9.89a $\bar{S2}$ 4.57a 141.73a 66.37a 24.09a 10.35a 10.15a