不同地力水平下的小麦施肥效应
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徐霞,赵亚南,黄玉芳,闫军营,叶优良
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Fertilization Effect of Wheat Under Different Soil Fertilities
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Xia XU,YaNan ZHAO,YuFang HUANG,JunYing YAN,YouLiang YE
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表1 不同基础地力下河南省小麦氮、磷、钾肥的农学效率和偏生产力
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Table 1 Agronomic efficiency and partial factor productivity of N, P and K fertilizers in wheat under different soil fertilities in Henan Province
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处理 Treatmen | 基础地力 Soil fertilities (t·hm-2) | 农学效率Agronomic efficiency (kg·kg-1) | | 偏生产力Partial factor Productivity (kg·kg-1) | 范围Range | 平均值Mean | 范围Range | 平均值Mean | NPK | <3.0 | 2.71—16.70 | 10.05±3.29a | | 9.39—30.27 | 18.31±4.39b | 3.0—4.5 | 1.38—17.61 | 8.35±3.42b | | 9.73—34.38 | 20.11±4.85a | 4.5—6.0 | 0.00—17.58 | 6.07±3.18c | | 10.71—34.59 | 20.39±4.79a | >6.0 | 0.00—12.50 | 3.45±2.32d | | 10.60—31.91 | 20.46±3.87a | N | <3.0 | 0.00—32.67 | 14.93±7.42a | | 18.60—49.44 | 36.22±8.47b | 3.0—4.5 | 0.00—29.71 | 12.13±6.29b | | 20.10—63.50 | 41.23±9.16a | 4.5—6.0 | 0.00—24.03 | 8.75±5.58c | | 15.74—69.94 | 42.52±10.46a | >6.0 | 0.00—25.78 | 5.81±4.76d | | 24.73—59.70 | 42.99±8.01a | P | <3.0 | 0.00—44.25 | 13.06±9.65a | | 37.56—98.88 | 69.71±15.15b | 3.0—4.5 | 0.00—34.43 | 13.01±8.45a | | 40.20—120.25 | 76.21±18.24a | 4.5—6.0 | 0.00—34.78 | 10.43±7.41b | | 40.12—135.22 | 78.34±19.80a | >6.0 | 0.00—20.00 | 7.38±5.46c | | 49.61—119.40 | 78.54±15.70a | K | <3.0 | 0.00—30.63 | 10.77±8.12a | | 32.55—142.83 | 72.78±21.33b | 3.0—4.5 | 0.00—33.80 | 9.28±7.43ab | | 36.46—155.25 | 78.59±21.60a | 4.5—6.0 | 0.00—28.80 | 8.48±6.57b | | 50.44—138.35 | 80.28±19.60a | >6.0 | 0.00—16.19 | 5.35±4.58c | | 48.24—153.75 | 79.67±18.44a |
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