不同施氮量对烤烟品种K326生长发育和产质量及抗病性的影响

Effect of Nitrogen Application Amount on Growth, Yield,Quality and Resistance of Flue-cured Tobacco

采用田间试验,于2010年在湖南龙山研究了不同氮肥施用量对K326烤烟品种的生长发育、产质量及抗病性的影响。结果表明:随着氮肥用量的增加,K326的长势越好,烟叶产量也越高,但其产值随施氮量的增加呈现先升后降的趋势,总的来看,施氮量以98.25 kg/hm2时产值最高,而氮肥用量对烤烟的抗病性没有明显影响。

Field experiment of tobacco variety K326 was implemented under 5 different N application amount levels in Longshan county of Hunan Province in 2010. The results showed that tobacco grew better and the yield also increased with the increasing of N application amount. However, output value showed a raising - decreasing state with increasing of N application amount. Generally, it was optimal for tobacco variety K326 when N application amount was 98.25 kg/hm^2, and N application amount showed no relation with resistance of flue - cured tobacco.