| 氮钾配施对露地小油菜硝酸盐含量的影响 |
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| 引用本文： | 秦文利,李春杰.氮钾配施对露地小油菜硝酸盐含量的影响[J].河北农业科学,2005,9(4):35-37. |
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| 作者姓名： | 秦文利 李春杰 |
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| 作者单位： | 河北省农林科学院农业资源环境研究所,河北,石家庄,050051;河北省农林科学院农业资源环境研究所,河北,石家庄,050051 |
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| 摘 要： | 采用微区试验方法,研究了氮钾配施条件下露地小油菜硝酸盐含量的变化。结果表明:小油菜生长中后期的硝酸盐含量大大低于生长前期;在磷钾肥用量一定的条件下,各生育时期的小油菜硝酸盐含量均随氮肥施用量的加大呈升高趋势;在磷肥用量一定的条件下, 115-575 mg／kg施氮范围内,小油菜硝酸盐含量随钾肥用量的加大呈下降趋势。
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| 关 键 词： | 小油菜 施肥 硝酸盐 含量 |
| 文章编号： | 1008-1631(2005)04-0035-03 |
| 收稿时间： | 2005-11-03 |
| 修稿时间： | 2005年11月3日 |
Effects of Different N and K Ratios application on Nitrate Content in Cole |
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| QIN Wen-li,LI Chun-jie.Effects of Different N and K Ratios application on Nitrate Content in Cole[J].Journal of Hebei Agricultural Sciences,2005,9(4):35-37. |
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| Authors: | QIN Wen-li LI Chun-jie |
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| Institution: | Institute of Agro-resources and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China |
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| Abstract: | The objective of this research was to analyze the effects of different N K ratios on nitrate content in cole. The results showed that the nitrate content in the metaphase and the anaphase of cole growth is less than in the prophase. In each period, the nitrate in cole increased with the increase of nitrogen fertilizer application under the control of potassium fertilizer and phosphorus fertilizer, but under the conditions of different nitrogen fertilizer levels and a certain level of phosphorus fertilizer application, the nitrate in cole plants decreased with the increase application of nitrogen fertilizer. |
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| Keywords: | Cole Fertilize Nitrate Content |
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