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3 不同施氮水平下玮两优8612干物质积累量及收获指数

Table 3 Dry matter accumulation and harvest indexes of Weiliangyou 8612 under different nitrogen fertilizer application levels

年份 Year 处理 Treatment 干物质积累量 Dry matter accumulation (t/hm2) 收获指数 Harvest index (%) 抽穗期 Heading stage 成熟期 Maturity stage 2021 N200 15.52±1.01a 23.09±2.06a 49.41±3.66a N100 14.90±1.42a 18.20±0.41b 51.66±1.33a N0 13.69±0.34a 18.09±1.76b 51.75±3.01a 2022 N200 14.09±1.00ab 19.66±0.76ab 53.41±0.82b N150 14.53±0.44a 20.83±0.97a 55.56±0.44a N100 13.14±0.17ab 17.58±1.10cd 55.79±0.96a N50 13.45±1.57ab 18.31±0.97bc 55.15±0.90ab N0 12.28±1.43b 15.58±1.56d 54.69±1.86a 2023 N200 － 18.05±1.38a 58.59±1.07ab N150 － 18.08±1.17a 57.59±1.82ab N100 － 17.40±0.99ab 60.03±1.32a N50 － 15.12±0.45bc 58.99±0.63ab N0 － 13.01±1.74c 56.54±2.13b