华北地区夏玉米滴灌施肥的肥料效应
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李格,白由路,杨俐苹,卢艳丽,王磊,张静静,张银杰
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Effect of Drip Fertigation on Summer Maize in North China
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LI Ge,BAI YouLu,YANG LiPing,LU YanLi,WANG Lei,ZHANG JingJing,ZHANG YinJie
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表3 不同施肥处理的夏玉米产量及其产量构成因素
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Table 3 Summer maize yield and its yield components among different fertilizer treatments
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年份
Year | 处理
Treatment | 穗粒数（粒）
Grain per ear | 百粒重
100 grain weight (g) | 产量
Grain yield (kg·hm-2) | 增产率
Increased rate (%) | 平均增产率
Average increased rate (%) | | 2017 | N0 | 490.53c | 35.02b | 10434.44c | - | | | N1 | 562.81b | 37.40a | 10864.07b | 4.12 | | | N2 | 577.87a | 37.75a | 11774.73a | 12.84 | 9.34 | | N3 | 564.40b | 35.23b | 11588.69a | 11.06 | | | P0 | 536.78c | 35.43c | 10985.38d | - | | | P1 | 553.03bc | 36.58b | 11233.70c | 2.26 | | | P2 | 577.87a | 37.75a | 11774.73a | 7.19 | 4.51 | | P3 | 559.83b | 37.65a | 11433.06b | 4.08 | | | K0 | 544.86b | 35.62b | 11128.57b | - | | | K1 | 563.20ab | 36.68ab | 11690.40a | 5.05 | | | K2 | 577.87a | 37.75a | 11774.73a | 5.81 | 5.77 | | K3 | 580.49a | 37.52a | 11844.73a | 6.44 | | | 2018 | N0 | 542.39b | 32.00a | 8212.74c | - | | | N1 | 551.80b | 33.48a | 9344.20b | 13.78 | | | N2 | 575.89a | 33.89a | 9780.53a | 19.09 | 16.70 | | N3 | 560.48ab | 34.05a | 9627.33a | 17.22 | | | P0 | 538.61b | 33.31a | 8516.97c | - | | | P1 | 537.63b | 34.10a | 8866.98b | 4.11 | | | P2 | 575.89a | 33.89a | 9780.53a | 14.84 | 8.35 | | P3 | 588.57a | 32.99a | 9037.52b | 6.11 | | | K0 | 547.20a | 32.70b | 8704.89b | - | | | K1 | 553.02a | 33.55ab | 9747.54a | 11.98 | | | K2 | 575.89a | 33.89ab | 9780.53a | 12.36 | 12.67 | | K3 | 579.87a | 34.45a | 9894.91a | 13.67 | |
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