施氮量和留叶数对烤烟根系活力与氮磷钾含量的影响OACSTPCD
Effect of Nitrogen Application Rate and Remained Leaf Number on Root Activity and Content of N, P and K of Flue- cured Tobacco
以烤烟品种HY-9-7为材料进行大田试验,研究了施氮量和留叶数对烤烟根系活力与烟株各器官氮、磷、钾含量的影响.结果表明,烤烟生长发育前期,根系活力随施氮量增加而升高;烤烟生长发育后期,同一留叶数条件下,根系活力随施氮量增加呈先升后降趋势;同一施氮量水平下,根系活力随留叶数增加呈先升后降趋势.烟株各器官含N量随施氮量增加而增加,叶、茎含P量与叶、根含K量随着施氮量增加呈先升后降趋势;同一施氮量水平下,叶、根含P量随留叶数增加呈先升后降趋势,各器官含…查看全部>>
In order to study the influence of nitrogen applied rate and remained leaf numbers on tobacco root activity and N, P, K content in tobacco plant organs, we used tobacco variety HY -9 -7 as experiment material. The results showed that the root activity increased with nitrogen applied rate increased at the early growth stage of tobacco. At the late growth stage, root activity increased with the nitrogen applied rate increased under the same remained leaf…查看全部>>
曹健;屠乃美;易迪
郴州市烟草公司,湖南郴州423000湖南农业大学农学院,长沙410128郴州市烟草公司,湖南郴州423000
农业科技
烤烟留叶数施氮量根系活力氮磷钾
Flue - cured tobacco Remained leaf numbers Nitrogen application rate Root activity N, P and K
《作物研究》 2012 (4)
355-358,4
湖南省烟草专卖局资助项目.
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