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4 2022年各磷肥处理双季稻干物质积累量

Table 4 Dry matter accumulation of double-cropping rice under different phosphorus fertilizer treatments in 2022 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 1.14c 7.80b 10.53b 1.58e 9.03c 14.26b P45S2 1.16bc 7.20c 9.14c 1.69d 8.73c 14.50b P75S1 1.19bc 8.05ab 11.74a 2.14b 9.30b 14.86ab P75S2 1.15c 7.26c 10.85b 2.38a 9.94a 15.26a P105S1 1.43a 8.30a 11.79a 1.90c 9.63ab 14.54ab P105S2 1.22b 7.91ab 10.96b 2.06b 9.91a 14.94a P0 0.85c 6.41c 8.63c 1.4d 7.91c 12.93b $\bar{P45}$ 1.15b 7.50b 9.84b 1.64c 8.88b 14.38a $\bar{P75}$ 1.17b 7.66b 11.30a 2.26a 9.62a 15.06a $\bar{ P105}$ 1.33a 8.11a 11.38a 1.98b 9.77a 14.74a $\bar{S1}$ 1.25a 8.05a 11.35a 1.87b 9.32a 14.55a $\bar{S2}$ 1.18b 7.46b 10.32b 2.04a 9.53a 14.90a