韩秉进, 金剑, 中博. “黑农35”大豆有效营养面积的研究[J]. 中国生态农业学报(中英文), 2005, 13(4): 77-81.
引用本文: 韩秉进, 金剑, 中博. “黑农35”大豆有效营养面积的研究[J]. 中国生态农业学报(中英文), 2005, 13(4): 77-81.
HAN Bing-Jin, JIN Jian, NAKASHIMAHiroshi. Study on effective nutrient area of‘heinong 35’soybean[J]. Chinese Journal of Eco-Agriculture, 2005, 13(4): 77-81.
Citation: HAN Bing-Jin, JIN Jian, NAKASHIMAHiroshi. Study on effective nutrient area of‘heinong 35’soybean[J]. Chinese Journal of Eco-Agriculture, 2005, 13(4): 77-81.

“黑农35”大豆有效营养面积的研究

Study on effective nutrient area of‘heinong 35’soybean

  • 摘要: 研究提出作物有效营养面积新概念,并建立了大豆植株个体营养面积与产量关系模型,优化解析出大豆有效营养面积为2837.5cm2,即有效株行距为53.3cm;大豆最佳营养面积为520.0cm2,即最佳株行距为22.8cm。并据此阐明目前我国北方垄作区广泛采用的67~70cm垄距已超过大豆有效株行距,造成土壤资源等浪费。垄作区若采用50cm左右垄距,平作区采用23cm*23cm株行距种植大豆,更有利于大豆群体产量的提高。

     

    Abstract: The concept about crop's effective nutrient area is stated and a model of the relationship between nutrient area of soybean and yield is built.Through optimization and analysis,the nutrient area of soybean is 2837.5cm2,i.e.the effective row width is 53.3cm.The optimum nutrient area is 520.0cm2,i.e.the best row width is 22.8cm.But,in the present production,the ridge width is 67~70cm,longer than the effective row width of soybean,which would waste soil resources.The row width of soybean should be 50 cm under ridge tillage condition or 23cm*23cm under plain tillage condition,which would be benefit for the increase of population yield of soybean.

     

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