土壤肥力对红壤性水稻土水稻产量和氮肥利用效率的影响
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彭卫福, 吕伟生, 黄山, 曾勇军, 潘晓华, 石庆华
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Effects of Soil Fertility on Rice Yield and Nitrogen Use Efficiency in a Red Paddy Soil
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WeiFu PENG, WeiSheng LÜ, Shan HUANG, YongJun ZENG, XiaoHua PAN, QingHua SHI
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| 表2 土壤肥力（F）和施氮量（N）对水稻产量及其构成的影响 |
| Table 2 Effects of soil fertility (F) and N fertilization (N) on rice yield and its components |
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处理
Treatments | 产量
Grain yield (g/pot) | 有效穗数
Effective panicles/pot | 每穗实粒数
Spikelets per panicle | 结实率
Filled grain percentage (%) | 千粒重
1000-grain weight (g) | | FLN0 | 23.6f | 9.3f | 108.6ab | 89.4bc | 26.5d | | FLN150 | 38.5e | 15.3de | 101.9b | 88.7bc | 26.3d | | FLN225 | 44.5d | 17.0d | 109.0ab | 89.0bc | 26.4d | | FMN0 | 40.0e | 14.7e | 116.5a | 88.9bc | 26.7bcd | | FMN150 | 55.9c | 19.3c | 114.5ab | 88.3c | 26.6cd | | FMN225 | 62.1b | 22.0ab | 113.6ab | 88.3c | 26.5d | | FHN0 | 55.3c | 21.7b | 115.5ab | 89.6b | 27.1a | | FHN150 | 65.0ab | 22.3ab | 114.5ab | 91.5a | 27.0ab | | FHN225 | 68.0a | 24.0a | 117.4a | 91.1a | 26.9abc | | ANOVA（P） | | | | | | | 肥力（F） | 0.0001 | 0.0001 | 0.0525 | 0.0001 | 0.0001 | | 施氮量（N） | 0.0001 | 0.0001 | 0.6595 | 0.8117 | 0.3175 | | 肥力×施氮量（F×N） | 0.0010 | 0.0033 | 0.9165 | 0.0366 | 0.9305 |
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