氮肥减施对超级稻玮两优8612产量及品质的影响

何嘉辉, 李艳锋, 严天泽, 张选文, 秦鹏, 郭进有, 王凯, 刘雄伦, 杨远柱

The Effects of Reducing Nitrogen Fertilizer Application on the Yield and Quality of Super Rice Weiliangyou 8612

He Jiahui, Li Yanfeng, Yan Tianze, Zhang Xuanwen, Qin Peng, Guo Jinyou, Wang Kai, Liu Xionglun, Yang Yuanzhu

表4 不同施氮水平下玮两优8612产量及其构成因素

Table 4 Yield and its components of Weiliangyou 8612 under different nitrogen application levels

年份 Year 处理 Treatment 产量 Yield (t/hm2) 有效穗数 Effective panicle number (/m2) 穗粒数 Spikelets per panicle 结实率 Seed-setting rate (%) 千粒重 1000-grain weight (g) 2021 N200 11.45±0.51a 270.44±9.50a 218.67±20.03ab 81.90±4.41a 25.23±0.12a N150 12.16±0.41a 250.94±13.21ab 221.33±2.08ab 74.90±3.81b 24.90±0.46a N100 12.10±0.47a 245.91±8.51b 207.33±19.86b 75.83±1.72ab 24.67±1.04a N50 11.47±0.59a 228.93±6.07bc 239.00±12.12a 76.75±4.59ab 25.00±0.80a N0 10.59±0.34b 215.85±19.41c 194.00±22.72b 81.65±1.52a 25.80±0.53a 2022 N200 10.61±0.20a 208.57±19.88a 244.60±17.28ab 90.30±0.71a 24.73±1.05ab N150 10.88±0.85a 204.66±1.35a 260.95±8.95a 85.73±2.07b 25.03±0.26a N100 11.06±0.67a 201.54±9.94a 249.97±12.69a 86.70±3.82ab 24.73±0.21a N50 10.88±0.17a 211.50±14.37a 248.32±16.42ab 86.64±1.74ab 24.48±0.37ab N0 9.64±0.61b 224.98±23.20a 226.07±9.60b 85.90±1.84b 23.93±0.15b 2023 N200 12.21±0.13a 184.28±5.76a 248.98±6.48a 86.94±1.45ab 26.56±1.17a N150 11.68±0.29ab 191.04±14.81a 235.06±26.16ab 88.34±1.36a 26.62±0.74a N100 11.29±0.47b 194.97±17.12a 245.05±22.87ab 85.49±1.66b 25.98±0.56a N50 10.52±0.34c 188.68±9.12a 249.29±7.85a 87.06±1.98ab 25.89±0.91a N0 9.61±0.72d 176.67±2.81a 217.61±15.81b 86.24±0.72ab 24.30±0.62b 均值 Mean N200 11.42 225.00 237.42 86.38 25.51 N150 11.57 216.26 239.11 82.99 25.52 N100 11.49 214.66 234.12 82.67 25.13 N50 10.95 210.76 245.54 83.48 25.12 N0 9.95 203.75 212.56 84.60 24.68 方差分析Analysis of variance F值F-value 年Y 13.83** 69.53** 16.68** 67.78** 17.11** 处理T 17.40** 3.23* 6.50** 2.84* 2.66* 年×处理Y × T 2.85* 3.15** NS 2.62* 2.88*