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3 2021年各磷肥处理双季稻干物质积累量

Table 3 Dry matter accumulation of double-cropping rice under different phosphate fertilizer treatments in 2021 t/hm2

处理 Treatment 早稻Early rice 晚稻Late rice 分蘖盛期 Peak tillering stage 齐穗期 Full head stage 成熟期 Maturity stage 分蘖盛期 Peak tillering stage 齐穗期 Full head stage 成熟期 Maturity stage P45S1 1.46b 7.43c 9.62c 1.78c 7.93c 13.86c P45S2 1.43b 7.22c 9.90c 1.71c 7.86c 14.03c P75S1 1.59a 8.78a 11.70a 1.94b 8.86b 14.29bc P75S2 1.54a 8.21b 10.95b 1.91b 9.63a 14.81ab P105S1 1.60a 8.85a 11.80a 1.94b 9.68a 14.22c P105S2 1.53ab 8.64a 11.52a 2.23a 9.92a 14.96a P0 1.40b 6.71c 8.95c 1.65d 7.43d 12.30b $\bar{P45}$ 1.45b 7.33b 9.76b 1.75c 7.90c 13.95a $\bar{P75}$ 1.57a 8.50a 11.33a 1.93b 9.25b 14.55a $\bar{ P105}$ 1.57a 8.75a 11.66a 2.09a 9.80a 14.59a $\bar{S1}$ 1.55a 8.02a 11.04a 1.89a 8.82a 14.12a $\bar{S2}$ 1.50a 8.35a 10.79a 1.95a 9.14a 14.60a