鲁南地区夏玉米产量对气象因子的响应
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吴荣华,庄克章,刘鹏,张春艳
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Response of Summer Maize Yield to Meteorological Factors in Lunan Region
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Ronghua Wu,Kezhang Zhuang,Peng Liu,Chunyan Zhang
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表2 2017年气象因子及不同类型夏玉米产量
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Table 2 Meteorological factors and yields of different summer maize varieties in 2017
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品种类型 Type of maize | 播期 Sowing date | 有效积温 GDD (℃·d) | 日均温 ADT (℃) | 平均土壤温度 AST (℃) | 日照时数 DLH (h) | 降水量 AR (mm) | 气温日较差 ADTD (℃) | 产量 Yield (kg/hm2) | 早熟品种 | K1 | 1 757.75 | 25.77 | 28.70 | 640.20 | 633.50 | 8.21 | 11 379.00a | Precocious variety | K2 | 1 717.30 | 25.54 | 28.34 | 618.10 | 660.30 | 7.93 | 11 189.25a | | K3 | 1 644.35 | 25.02 | 27.65 | 597.80 | 645.20 | 7.77 | 10 434.75b | | K4 | 1 585.45 | 24.61 | 27.16 | 577.30 | 669.10 | 7.59 | 9 544.50c | 中熟品种 | K1 | 1 830.35 | 25.40 | 28.24 | 664.90 | 660.50 | 8.12 | 12 047.30a | Medium variety | K2 | 1 757.50 | 25.05 | 27.78 | 638.90 | 660.60 | 7.89 | 11 586.80b | | K3 | 1 682.95 | 24.28 | 27.30 | 619.90 | 669.10 | 7.72 | 11 113.50c | | K4 | 1 612.25 | 23.76 | 26.66 | 594.20 | 669.10 | 7.56 | 9 660.00d |
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