冀西北寒旱区农田作物轮作产量效应评价
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杜玉琼,张立峰,姚兆磊,张继宗,刘玉华
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Evaluation of Crop Rotation Yield Effect in Cold and Arid Regions of Northwest Hebei Province
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DU YuQiong,ZHANG LiFeng,YAO ZhaoLei,ZHANG JiZong,LIU YuHua
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表4 2016—2018年砂质栗钙土农田不同前茬各作物的平均经济产量
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Table 4 Average economic yield of different crop rotations of sandy chestnut soil field in 2016-2018 (kg·hm-2)
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后茬作物
Succeeding crop | 前茬作物Previous crop | | 马铃薯Potato | 亚麻Flax | 谷子Forage millet | 莜麦Oat | 甜菜Beet | | 马铃薯Potato | 3112.98±590.53aA | 4010.72±930.10abAB | 3773.71±550.18abAB | 4318.84±725.18bB | 3970.45±280.77abAB | | 亚麻Flax | 1289.42±138.85aA | 1225.87±158.33aA | 1157.65±169.49aA | 1325.84±207.95aA | 1211.34±79.68aA | | 谷子Forage millet | 7746.90±2732.56aA | 7186.10±2696.62aA | 5947.81±1165.48aA | 6225.64±1257.66aA | 5930.60±1796.59aA | | 莜麦Oat | 2001.59±766.46aA | 1890.33±677.62aA | 1639.54±461.51aA | 1734.93±732.97aA | 1978.40±522.85aA | | 甜菜Beet | 8666.19±2134.00 bA | 7825.86±457.90abA | 7214.63±981.98abA | 7700.16±1252.81abA | 6367.97±1655.00aA |
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