| 石家庄市耕层土壤速效钾含量变化分析 |
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| 引用本文： | 孙志军,杨丽,张广辉,张辉.石家庄市耕层土壤速效钾含量变化分析[J].现代农业科技,2011(9):293-294. |
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| 作者姓名： | 孙志军 杨丽 张广辉 张辉 |
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| 作者单位： | 河北省石家庄市土肥站; |
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| 摘 要： | 2008年石家庄市土壤养分调查表明,全区耕层土壤养分含量整体处于中等水平,与第二次土壤普查结果比,速效钾含量呈下降趋势,化肥投入结构不合理、钾的投入不足,是造成土壤速效钾含量下降的主要原因。
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| 关 键 词： | 耕层土壤 速效钾 变化 河北石家庄 |
Analysis on Changes of Available Potassium Content in Topsoil in Shijiazhuang City |
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| Authors: | SUN Zhi-jun YANG Li ZHANG Guang-hui ZHANG Hui |
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| Institution: | SUN Zhi-jun YANG Li ZHANG Guang-hui ZHANG Hui(Shijiazhuang Soil and Fertilizer Station of Hebei Province,Shijiazhuang Hebei 050051) |
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| Abstract: | The soil nutrient survey of Shijiazhuang City in 2008 showed that the soil nutrient contents were overall in the medium level,compared with the second soil survey result,available potassium content declined,and the main reasons caused the decline were deficiency of fertilizer inputs,unreasonable structure,insufficient investment of K. |
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| Keywords: | topsoil avilable potassium change Shijiazhuang Hebei |
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