| 降低韭菜硝酸盐含量的农艺措施研究 |
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| 引用本文： | 张桂海,王明耀,王学颖,崔绍玉,温素萍.降低韭菜硝酸盐含量的农艺措施研究[J].北方园艺,2009(12). |
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| 作者姓名： | 张桂海 王明耀 王学颖 崔绍玉 温素萍 |
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| 作者单位： | 廊坊市农林科学院,河北,廊坊,065000;廊坊市农林科学院,河北,廊坊,065000;廊坊市农林科学院,河北,廊坊,065000;廊坊市农林科学院,河北,廊坊,065000;廊坊市农林科学院,河北,廊坊,065000 |
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| 基金项目： | 河北省科技支撑资助项目 |
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| 摘 要： | 以氮、磷肥料合理施用及有效酸比,研究降低韭菜硝酸盐含量的农艺措施.结果表明:春季3～4月份,韭菜追施氮素化肥以纯氮5 kg/667 m2时,产品中硝酸盐含量符合国家标准.5～9月份单独追施氮素化肥,纯氮量0～20 kg/667m2范围内,硝酸盐累积量随追施数量的增加而增加;单独施用磷肥,当追施过磷酸钙数量＜61.88 kg/667 m2时,韭菜叶片中硝酸盐累积量随着施用磷肥量的增加而减少.在低肥力土壤,以纯N量20 kg/667m2的氮素化肥与P2O5量4.6 kg/667 m2的磷肥充分混合后沟施,韭菜的产量高且硝酸盐累积量低.
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| 关 键 词： | 韭菜 硝酸盐累积 农艺措施 |
Studies on the Agronomic Measures of Reducing the Nitrate Content of the Chinese chive |
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| ZHANG Gui-hai,WANG Ming-yao,WANG Xue-ying,CUI Shao-yu,WEN Su-ping.Studies on the Agronomic Measures of Reducing the Nitrate Content of the Chinese chive[J].Northern Horticulture,2009(12). |
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| Authors: | ZHANG Gui-hai WANG Ming-yao WANG Xue-ying CUI Shao-yu WEN Su-ping |
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| Institution: | ZHANG Gui-hai,WANG Ming-yao,WANG Xue-ying,CUI Shao-yu,WEN Su-ping(Langfang Academy of Agriculture , Forestry Sciences,Langfang,Hebei 065000,China) |
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| Abstract: | During March to April,when the nitrate content applied 5 kg/667m2 the standard of country when.From May to steptember,the nitrate accumulation of nitrate inereased with the enerease of fertilizer with.within the range of pure nitrogen 0~20 kg/667m2with the application of phosphate fertilizer lonely,when the quantity of superphosphate less than 61.88 kg/667m2,the nitrate accumulation descends following with the application of phosphate fertilizer increasing.In lower soil fertility fields,it had the best effe... |
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| Keywords: | Chinese chive Nitrate accumulation Agronomic measures |
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