| 施肥比例及施肥量对玉米吸肥的影响及增产机理 |
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| 引用本文： | 杨玉画,褚清河,杜慧玲.施肥比例及施肥量对玉米吸肥的影响及增产机理[J].山西农业科学,2004,32(4):33-36. |
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| 作者姓名： | 杨玉画 褚清河 杜慧玲 |
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| 作者单位： | 1. 山西省农业科学院农业资源综合考察研究所,山西,太原,030006
2. 山西农业大学,山西,太谷,030801 |
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| 基金项目： | 山西省科技厅科技攻关项目(951009)。 |
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| 摘 要： | 盆栽试验表明,无论单施氮还是单施磷,均可提高玉米植株的氮素吸收量,但植株氮含量仍以最适施肥比例条件下的最大施肥量为最高,此时玉米叶片的叶绿素含量和光合强度也达到最大值,说明合理的施肥比例和施肥量是影响玉米叶片叶绿素含量和光合强度高低的重要因素。
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| 关 键 词： | 施肥比例 施肥量 玉米 叶绿素含量 光合强度 |
| 文章编号： | 1002-2481(2004)04-0033-04 |
| 修稿时间： | 2004年4月8日 |
Effect of Fertilization Ratio and Dosage to Absorption and Its Machinism of Yield Improvement |
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| YANG Yu-hua,CHU Qing-he,DU Hui-ling.Effect of Fertilization Ratio and Dosage to Absorption and Its Machinism of Yield Improvement[J].Journal of Shanxi Agricultural Sciences,2004,32(4):33-36. |
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| Authors: | YANG Yu-hua CHU Qing-he DU Hui-ling |
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| Institution: | YANG Yu-hua~1,CHU Qing-he~1,DU Hui-ling~2 |
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| Abstract: | Pot experiment showed that no matter single fertilization of nitrogen or phosphorus,both of them could improve absorption of nitrogen by maize leaves.But the maximum level of plant nitrogen is still the maximum fertilization dosage in an optimum fertilization ratio.Under that situation the levels of chlorophyll and photosynthesis intensity reached the highest.It suggested that reasonable fertilization ratio and dosage were important factors affecting cholorophyll level and intensity of photosynthesis in maize leaf. |
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| Keywords: | Fertilization ratio Fertilization dosage Level of cholorophyll Intensity of photosynthesis |
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