施氮量与氮磷钾配比对小粒型杂交稻源库特性的影响

潘群肖, 龙超, 卓乐, 殷超, 肖敏, 周文新, 易镇邪

Effects of Nitrogen Application Rate and N-P-K Ratio on Source-Sink Characteristics of Small-Seed Hybrid Rice

Pan Qunxiao, Long Chao, Zhuo Le, Yin Chao, Xiao Min, Zhou Wenxin, Yi Zhenxie

表7 2023年施氮量与氮磷钾配比对小粒型杂交稻产量及其构成因素的影响

Table 7 Effects of nitrogen application rate and N-P-K ratio on rice yield and its components of small-seed hybrid rice in 2023

处理 Treatment 有效穗数 Effective panicle number (×104/hm2) 穗粒数 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) N1 228.25c 233.44b 81.45a 22.20a 9.64c 9.32c N2 241.62b 250.64a 78.27ab 22.17a 10.51b 10.17b N3 251.47ab 252.30a 79.50ab 22.16a 11.17a 10.93a N4 266.35a 245.54ab 76.18b 22.14a 11.03ab 10.71a F1 244.56a 244.40a 79.26a 22.19a 10.51a 10.20a F2 245.23a 246.14a 79.47a 22.20a 10.64a 10.38a F3 250.97a 245.91a 77.83a 22.12a 10.61a 10.26a N1F1 225.78c 231.18c 81.47a 22.14a 9.41c 9.22c N1F2 226.87c 233.23c 82.04a 22.26a 9.66c 9.31c N1F3 232.09c 235.91bc 80.85ab 22.21a 9.83c 9.42c N2F1 238.31bc 248.33ab 78.62ab 22.17a 10.32bc 9.91bc N2F2 241.39bc 249.87ab 78.49ab 22.22a 10.52b 10.37b N2F3 245.17b 253.73a 77.70b 22.12a 10.69b 10.24b N3F1 249.03b 250.77ab 80.96ab 22.18a 11.21a 10.94a N3F2 248.18b 254.61a 80.47ab 22.14a 11.26a 10.99a N3F3 257.19ab 251.52ab 77.07b 22.15a 11.04ab 10.85ab N4F1 265.13a 247.30ab 75.98b 22.26a 11.09ab 10.73ab N4F2 264.48a 246.83ab 76.88b 22.19a 11.14ab 10.86ab N4F3 269.43a 242.49b 75.68b 21.98a 10.87ab 10.53ab N ** ** ** ns ** ** F * ns ns ** ** ** N×F ns ns ns ** ** **