减量施氮对春小麦不同器官氮肥利用及籽粒品质的影响

路佳慧, 王爽, 李云, 郭振清, 王健, 韩玉翠, 林小虎

Effects of Reduced Nitrogen Application on Nitrogen Utilization and Grain Quality in Different Organs of Spring Wheat

Lu Jiahui, Wang Shuang, Li Yun, Guo Zhenqing, Wang Jian, Han Yucui, Lin Xiaohu

表1 不同施氮处理下穗部生长指标

Table 1 Ear growth indices under different nitrogen treatments

处理 Treatment 穗长 Length of spike (cm) 小穗数 Spikelet number (×104/hm2) 穗粒数 Grains per spike 有效小穗数 Efficient spikelet number 无效小穗数 Inefficient spikelet number 结实率 Seed-setting percentage (%) N0 29.03±0.09a 16.68±0.13a 46.50±0.95b 14.33±0.02b 1.85±0.09b 143.31±2.07c N80 29.60±0.15a 16.55±0.33a 51.75±0.70a 14.77±0.20ab 1.78±0.03b 156.37±0.61a N160 29.63±0.18a 16.51±0.18a 47.32±0.94b 14.42±0.13b 2.09±0.03a 143.27±2.45c N240 30.20±1.19a 16.65±0.28a 50.03±1.35a 15.11±0.17a 1.54±0.03c 150.23±1.79b