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作 者:张迪[1] 赵铭钦[1] 赵进恒[1] 刘乐[1] 张晓蕴[1] 张广富[1] 吕中显[1]
出 处:《江西农业学报》2010年第5期15-18,共4页Acta Agriculturae Jiangxi
基 金:吉林烟草工业有限责任公司重大科技攻关项目(JY2006012)
摘 要:目的:探索水肥互作对烤烟含氮化合物含量的影响。方法:以烤烟品种云烟87为试材,在2007~2008年采用田间试验研究了不同水肥处理对烤烟含氮化合物含量的影响。结果:不同水肥处理对烤烟含氮化合物影响显著,T5和T8的含氮化合物含量均在适宜范围,且T8的烟碱含量最适宜,叶绿素含量最低;在氮肥施用量为60 kg/hm2条件下遇旱灌溉可以降低烟叶中总氮、烟碱和叶绿素的含量。结论:就烤烟含氮化合物而言,水肥互作效应的最佳组合为:充足灌溉(保持田间持水量75%以上)、每公顷施纯N 60 kg、P2O5120 kg、K2O 180 kg。[Objective] To explore the effects of water-fertilizer interaction on the content of main N-containing compounds in flue-cured tobacco.[Method] During 2007~2008,taking tobacco cultivar Yunyan 87 as the tested material,a field test was conducted under different water-fertilizer interaction conditions.[Result] Different water-fertilizer treatments had great effect on the content of main N-containing compounds,the content of N-containing compounds in treatment T8 and T5 was all in the appropriate range;the nicotine content in treatment T8 was the most appropriate,while the total content of chlorophyll was the lowest.Under the condition of applying 60 kg/hm2 nitrogen fertilizer,the irrigation in occasion of drought could reduce the content of total nitrogen,nicotine and chlorophyll in tobacco leaves.[Conclusion] In view of N-containing compounds in the leaves of flue-cured tobacco,the best combination of water and fertilizer was applying 60 kg/hm2 pure nitrogen,120 kg/hm2 P2O5 and 180 kg/hm2 K2O on the basis of sufficient irrigation(keeping the field water-holding capacity to be over 75%).
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