减量施氮对春小麦不同器官氮肥利用及籽粒品质的影响
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路佳慧, 王爽, 李云, 郭振清, 王健, 韩玉翠, 林小虎
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Effects of Reduced Nitrogen Application on Nitrogen Utilization and Grain Quality in Different Organs of Spring Wheat
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Lu Jiahui, Wang Shuang, Li Yun, Guo Zhenqing, Wang Jian, Han Yucui, Lin Xiaohu
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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
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Table 2 Nitrogen accumulation in above-ground parts of spring wheat at different growth stages under different nitrogen application treatments kg/hm2
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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 |
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