| 衡水市耕层土壤钾素状况及施钾效果分析 |
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| 引用本文： | 刘全喜,马连运,王有增.衡水市耕层土壤钾素状况及施钾效果分析[J].河北农业科学,2007,11(1):64-65,71. |
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| 作者姓名： | 刘全喜 马连运 王有增 |
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| 作者单位： | 1. 衡水市桃城区农业技术推广中心,河北,衡水,053000
2. 河北省农林科学院旱作农业研究所,河北,衡水,053000 |
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| 摘 要： | 采用定点监测数据分析了衡水市耕层土壤钾素养分变化状况,并进行了小麦、玉米和棉花作物的钾肥肥效试验.结果表明:1982、1990和1996年的3次测定,衡水市耕层土壤速效钾含量水平呈逐次全面下降趋势;2006年耕层土壤速效钾含量水平则有所回升,但土壤的钾素养分含量已由1982年的"富钾"变为"缺钾"、部分地块严重缺钾状态.小麦、玉米和棉花作物的K2O适宜用量分别为112.5～150.0、112.5～180.0和150.0～225.0kg/hm2.
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| 关 键 词： | 衡水市 土壤 钾肥 效果评价 |
| 文章编号： | 1008-1631（2007）01-0064-03 |
| 修稿时间： | 2007-02-08 |
The Potassium Status of the Arable Soil Layer in Hengshui City and Analysis of the Effect of K-fertilizer Application |
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| LIU Quan-xi,MA Lian-yun,WANG You-zeng.The Potassium Status of the Arable Soil Layer in Hengshui City and Analysis of the Effect of K-fertilizer Application[J].Journal of Hebei Agricultural Sciences,2007,11(1):64-65,71. |
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| Authors: | LIU Quan-xi MA Lian-yun WANG You-zeng |
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| Institution: | 1. Hengshui City Taocheng District Agricultural Technique Extending Center, Hengshui 053000, China; 2. Dryland Farming Institute, Hebei Academy of Agricultural and Forestry Sciences, Hengshui 053000, China |
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| Abstract: | A long-term observation of the soil nutrients of the arable layer in Hengshui City was conducted in 1992- 2006, and the results showed that the available K content in the arable layer dropped drastically, and the soils in Hengshui City had changed from K-rich into K-deflcit. The experiment carried out in multi-year and muhi-location indicated that the application of K fertilizer to wheat, maize and cotton appeared increase in yield to a varied degree. The optimum rate of K2O for wheat, maize and cotton were 112. 5-150.0 kg/hm^2, 112. 5-180. 0 kg/hm^2 and 150-225 kg/hm^2 respectively. |
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| Keywords: | Hengshui city Soil Potassium fertilizer Valuaton of effect |
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