| 罗蔓.氮磷钾施肥对烤烟品种NC102 产量尧叶绿素含量及净光合速率的影响[J].广东农业科学,2015,42(2):11-16 |
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氮磷钾施肥对烤烟品种NC102 产量尧叶绿素含量及净光合速率的影响 |
| Impact of combined application of N, P and K on yield, chlorophyll content and net photosynthetic rate of flue-cured tobacco NC102 |
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| DOI： |
| 中文关键词: 烤烟 “3414”肥效试验 产量 叶绿素含量 净光合速率 |
| 英文关键词: flue-cured tobacco 3414 fertilizer effectiveness experiment yield chlorophyll content net photosynthetic rate |
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| 摘要点击次数: 1749 |
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| 中文摘要: |
| 以烤烟品种 NC102 为试材，通过“3414"肥效试验研究氮磷钾施肥对烤烟产量、叶绿素含量及净光合速率的影响。结果表明：各处理产量均比对照有显著提高。当每 667m2纯氮用量 5.22 kg、纯磷用量 4.26 kg、纯钾用量 22.50 kg 时，烤烟可获得最高产量 197.92 kg。 单一元素对产量的影响为氮肥最大，磷肥次之，钾肥最小。 氮素、磷素与成熟期叶片叶绿素含量和净光合速率密切相关，控制氮肥施用及适量增施磷肥有利于烟叶正常落黄；适量增施氮肥和钾肥有利于成熟期上部叶片的光合作用，促进上部叶片开片。 钾素对成熟期叶片叶绿素含量及净光合速率的影响不大。 |
| 英文摘要: |
| In this paper, 3414 fertilizer effectiveness experiment was set up to study the effect of combinedapplication of N, P and K on the yield, chlorophyll content and net photosynthetic rate of flue-cured tobacco NC102.The results showed that the actual yield of each fertilizer treatment was remarkably enhanced compared with CK,application of N 5.22 kg, P 4.26 kg, K 22.50 kg per 667m2, the yield could reach the highest with 197.92 kg/667m2.The yield was influenced greatly by nitrogen, followed by phosphate and potash fertilizer. During the period ofmaturation, the nitrogenous fertilizer and phosphate fertilizer were directly bound up with the chlorophyll content andnet photosynthetic rate of flue -cured tobacco. Controlling nitrogen fertilizer and increasing phosphate fertilizerproperly could cause the tobacco yellowing in due time. Increasing nitrogen fertilizer and phosphate fertilizer properlycould promote the photosynthesis and the extension level of superior leaves. During the period of maturation, theeffect of potassic fertilizer on chlorophyll content and net photosynthetic rate of flue-cured tobacco was few. |
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