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8 2024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 8 Effects of nitrogen application rate and N-P-K ratio on rice yield and its components of small-seed hybrid rice in 2024

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 237.39b 223.93b 82.00a 22.21a 9.68c 9.41c N2 243.43b 243.11a 78.17ab 22.19a 10.27b 9.87b N3 258.51a 239.77a 78.65ab 22.17a 10.81a 10.45a N4 265.69a 233.68ab 76.39b 22.16a 10.51ab 10.23ab F1 250.48a 235.20a 78.76a 22.19a 10.29a 9.96a F2 251.43a 234.88a 79.10a 22.21a 10.37a 10.06a F3 251.87a 235.29a 78.54a 22.15a 10.29a 9.95a N1F1 236.64b 221.62b 81.87a 22.15a 9.51c 9.32c N1F2 237.41b 224.15b 81.75a 22.25a 9.68c 9.39c N1F3 238.13b 226.01b 82.37a 22.24a 9.86bc 9.52bc N2F1 241.56b 242.87a 77.94b 22.21a 10.16b 9.76bc N2F2 243.96b 242.16a 77.82b 22.23a 10.22b 9.88b N2F3 244.77b 244.31a 78.76ab 22.13a 10.42ab 9.97b N3F1 257.45a 240.87ab 79.21ab 22.16a 10.88a 10.46a N3F2 259.95a 239.70ab 79.11ab 22.18a 10.93a 10.59a N3F3 258.12a 238.73ab 77.63b 22.17a 10.61ab 10.29ab N4F1 266.25a 235.42ab 76.03b 22.24a 10.60ab 10.31ab N4F2 264.38a 233.51ab 77.72b 22.18a 10.64ab 10.37ab N4F3 266.45a 232.12b 75.41b 22.05a 10.28b 10.02b N ** ** ** ns ** ** F ns ns ns * ns ** N×F ns ns ns * ** **