华北寒旱区作物轮作的生产效应
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姚兆磊, 张继宗, 杜玉琼, 刘玉华, 张立峰
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Productivity evaluation of crop rotation in cold and arid region of Northern China
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Zhao-Lei YAO, Ji-Zong ZHANG, Yu-Qiong DU, Yu-Hua LIU, Li-Feng ZHANG
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表4 不同种植模式下作物土地当量比
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Table 4 Crop land equivalent ratio under different cropping patterns
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作物 Crop | 年份 Year | 马铃薯茬 Potato cropping | 蚕豆茬 Faba bean cropping | 饲用玉米茬 Forage maize cropping | 莜麦茬 Oat cropping | 甜菜茬 Beet cropping | 作物土地 当量比 LERc | 效应Effect | 作物土地当量比LERc | 效应Effect | 作物土地 当量比 LERc | 效应 Effect | 作物土地 当量比 LERc | 效应Effect | 作物土地 当量比 LERc | 效应Effect | 马铃薯 | 2016 | 1.00 | 0 | 1.97 | + | 1.96 | + | 2.70 | + | 1.99 | + | Potato | 2017 | 1.00 | 0 | 1.35 | + | 1.61 | + | 1.56 | + | 1.22 | + | | 2018 | 1.00 | 0 | 1.53 | + | 1.80 | + | 1.78 | + | 1.64 | + | | 2019 | 1.00 | 0 | 1.22 | + | 1.13 | + | 1.21 | + | 0.77 | - | | Average | 1.00 a | 0 | 1.52 ab | + | 1.63 ab | + | 1.81 b | + | 1.41 ab | + | 蚕豆 | 2016 | 0.95 | - | 1.00 | 0 | 1.85 | + | 1.04 | + | 0.99 | - | Faba bean | 2017 | 1.43 | + | 1.00 | 0 | 1.13 | + | 1.02 | + | 0.84 | - | | 2018 | 0.93 | - | 1.00 | 0 | 1.22 | + | 1.07 | + | 0.67 | - | | 2019 | 1.40 | + | 1.00 | 0 | 0.94 | - | 0.97 | - | 1.01 | + | | Average | 1.18 ab | + | 1.00 ab | 0 | 1.29 b | + | 1.03 ab | + | 0.88 a | - | 饲用玉米 | 2016 | 1.11 | + | 1.15 | + | 1.00 | 0 | 0.92 | - | 0.65 | - | Forage | 2017 | 1.03 | + | 0.99 | - | 1.00 | 0 | 0.82 | - | 0.73 | - | maize | 2018 | 1.22 | + | 1.03 | + | 1.00 | 0 | 1.06 | + | 1.03 | + | | 2019 | 1.17 | + | 1.24 | + | 1.00 | 0 | 0.83 | - | 0.94 | - | | Average | 1.13 b | + | 1.10 b | + | 1.00 ab | 0 | 0.91 a | - | 0.84 a | - | 莜麦 | 2016 | 1.62 | + | 1.33 | + | 1.08 | + | 1.00 | 0 | 1.26 | + | Oat | 2017 | 1.63 | + | 1.37 | + | 1.74 | + | 1.00 | 0 | 1.05 | + | | 2018 | 1.92 | + | 1.79 | + | 1.61 | + | 1.00 | 0 | 1.15 | + | | 2019 | 1.02 | + | 1.01 | + | 1.06 | + | 1.00 | 0 | 1.55 | + | | Average | 1.55 b | + | 1.38 ab | + | 1.37 ab | + | 1.00 a | 0 | 1.25 ab | + | 甜菜 | 2016 | 1.45 | + | 1.29 | + | 1.11 | + | 1.13 | + | 1.00 | 0 | Beet | 2017 | 1.62 | + | 1.40 | + | 1.63 | + | 1.32 | + | 1.00 | 0 | | 2018 | 1.54 | + | 1.55 | + | 1.55 | + | 1.43 | + | 1.00 | 0 | | 2019 | 1.34 | + | 1.24 | + | 1.11 | + | 1.18 | + | 1.00 | 0 | | Average | 1.49 b | + | 1.37 b | + | 1.35 b | + | 1.27 b | + | 1.00 a | 0 |
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