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2 不同施氮处理下春小麦各生育时期地上部分氮素积累量
Table 2 Nitrogen accumulation in above-ground parts of spring wheat at different growth stages under different nitrogen application treatments kg/hm2
部位Position 处理Treatment 拔节期Jointing 孕穗期Booting 抽穗期Heading 开花期Flowering 成熟期Maturity
鞘Sheath N0 26.58±0.56Aa 13.67±0.61Dc 14.68±0.00Cd 17.31±0.65Bc 3.02±0.25Ec
N80 26.74±0.65Aab 19.34±1.42Bb 16.98±0.18Cc 19.29±0.85Bbc 5.04±0.51Da
N160 26.69±0.37Ab 18.89±0.18Cb 18.46±0.84Cb 21.68±2.09Bb 3.77±0.17Db
N240 26.64±1.34Aab 21.47±1.25Ba 21.41±0.21Ba 25.41±1.26Aa 4.66±0.33Ca
叶Leaf N0 53.43±1.52Aa 50.43±1.56Bc 41.46±0.39Cd 37.53±1.04Dc 6.41±0.76Eb
N80 52.06±1.92BCab 62.48±1.70Aa 54.29±0.70Bc 48.41±4.20Cb 7.64±0.43Da
N160 51.76±1.81Bb 56.45±2.18Ab 56.32±0.59Ab 48.44±2.88Bb 7.69±0.33Ca
N240 51.14±1.36Cab 65.95±2.14Aa 59.13±0.50Ba 58.54±4.05Ba 7.05±0.48Cab
秆Stem N0 16.54±0.46Cc 18.02±0.69Bc 27.98±0.52Ac 6.49±1.08Ddef
N80 16.84±0.36Cc 20.05±0.15Bb 38.16±2.04Aa 10.35±0.45Dd
N160 19.35±0.38Bb 21.16±0.15Ba 33.06±2.18Aa 8.38±1.42Cdef
N240 20.57±0.44Ba 21.46±0.28Ba 31.09±1.91Abc 9.14±1.19Cde
穗Spike N0 7.62±0.30Cc 18.91±0.51Bd 23.73±0.86Ac
N80 8.61±0.38Cb 23.78±0.63Bc 32.33±1.48Aa
N160 9.64±0.11Ba 24.81±0.52Ab 25.30±0.72Ac
N240 8.89±0.33Cb 26.20±0.11Ba 28.23±0.80Ab
籽粒Grain N0 111.14±4.72Cc
N80 143.73±8.57Aa
N160 134.83±4.96ABab
N240 130.75±0.89Bb