氮肥运筹对湘南双季杂交稻生长发育与稻米品质的影响

袁帅, 苏雨婷, 陈平平, 易镇邪

Effects of Nitrogen Management on Yield Formation and Rice Quality of Double Cropping Hybrid Rice in Southern Hunan

Yuan Shuai, Su Yuting, Chen Pingping, Yi Zhenxie

表4 氮肥运筹对水稻产量及其构成因素的影响

Table 4 Effects of nitrogen fertilizer management on rice yield and its components

品种 Variety 处理 Treatment 有效穗数 Effective number of panicles (×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) 株两优819 Zhuliangyou 819 N1 294.25b 83.91a 80.12a 27.26a 5.44b 5.25b N2 354.25a 82.35a 77.28b 27.86a 6.21a 5.88a N3 316.64b 82.29a 79.02ab 27.92a 5.80ab 5.47b 陆两优996 Luliangyou 996 N1 292.63a 79.98a 78.56a 26.67b 4.93b 4.73b N2 305.85a 80.37a 76.87a 28.52ab 5.46a 5.22a N3 298.13a 74.28b 77.62a 30.11a 5.20ab 5.03ab 盛泰优018 Shengtaiyou 018 N1 302.61b 113.32a 65.98b 29.11a 6.58a 6.34b N2 330.08a 110.33a 71.43a 28.68a 7.39a 7.11a N3 309.17b 112.05a 72.71a 28.14a 7.08a 6.78ab H优518 H You 518 N1 307.64b 115.22b 68.14a 24.58a 5.93b 5.77b N2 336.88a 122.37a 70.74a 23.87a 6.92a 6.66a N3 322.94ab 120.62a 66.47a 24.93a 6.43ab 6.24ab