| 冀西北地区施用氮磷钾肥对食葵产量和经济效益的影响 |
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| 引用本文： | 白苇,杨素梅,尹海峰,靳涛,李峰,张宝英,崔金丽.冀西北地区施用氮磷钾肥对食葵产量和经济效益的影响[J].作物杂志,2016,32(5):131-77. |
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| 作者姓名： | 白苇 杨素梅 尹海峰 靳涛 李峰 张宝英 崔金丽 |
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| 作者单位： | 张家口市农业科学院,075000,河北张家口 |
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| 基金项目： | 国家现代农业产业技术体系项目(CARS-16) |
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| 摘 要： | 为明确施用氮、磷、钾肥对食葵产量的影响,以及食葵对氮、磷、钾养分的吸收规律和利用效率,进行两年的肥料效应试验,结果表明：施用氮、磷、钾肥对食葵均有增产效果,其中钾肥增产最高,其次是氮肥,磷肥增产最少,与不施肥对照相比增产幅度分别为11.26%、8.45%、7.24%,氮、磷、钾肥的农学效率分别为2.49、5.10、4.49kg/kg,施用氮、磷、钾肥的养分利用率分别为19.65%、9.40%、35.22%,生产100kg食葵子实需要吸收氮、磷、钾肥分别为5.04、1.89、10.05kg。在种植食葵时要重施钾肥,提高氮肥用量,适量施用磷肥。
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| 关 键 词： | 食用向日葵 养分增产率 农学效率 养分利用率 冀西北 |
| 收稿时间： | 2016-06-17 |
Influence of N P K Fertilizers on Yield and Benefit of Confectionary Sunflowers in Northwest of Hebei |
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| Wei Bai,Sumei Yang,Haifeng Yin,Tao Jin,Feng Li,Baoying Zhang,Jinli Cui.Influence of N P K Fertilizers on Yield and Benefit of Confectionary Sunflowers in Northwest of Hebei[J].Crops,2016,32(5):131-77. |
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| Authors: | Wei Bai Sumei Yang Haifeng Yin Tao Jin Feng Li Baoying Zhang Jinli Cui |
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| Institution: | Zhangjiakou Academy of Agricultural Sciences,Zhangjiakou 075000,Hebei,China |
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| Abstract: | In order to investigate the effects of fertilization on yield, nutrient utilization and absorption of confectionary sunflowers, field experiments were conducted in two years. Results showed that nitrogen, phosphate and potassium fertilizers have yield increasing effects on confectionary sunflowers, where in the yield increasing effect of potassium fertilizer is the highest, that of nitrogen fertilizer takes the second place, and that of phosphate fertilizer is the lowest. Their rates of increase are 11.26%, 8.45% and 7.24%, respectively. The yield increases of enable sunflower seeds through 1kg of nitrogen, phosphate and potassium fertilizers are 2.49kg, 5.10kg and 4.49kg respectively; nutrient utilization rates of nitrogen, phosphate and potassium fertilizers are 19.65%, 9.40% and 35.22% respectively; nitrogen, phosphate and potassium fertilizers required to be absorbed for producing 100kg of confectionary sunflower seeds are 5.04kg, 1.89kg and 10.05kg respectively. Potassium fertilizer is required in large amount, the amount of nitrogen fertilizer should be increased, and the amount of phosphate fertilizer is required to some extent during the planting of confectionary sunflowers. |
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| Keywords: | Confectionary sunflower Increase rate Agronomy efficiency Nutrient use rate Northwest of Hebei |
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