施氮量对早植烟红大品种产质效应的影响

摘要

A plot experiment was conducted in the early planting tobacco area to research the appropriate nitrogen fertilizer rate for Hongda variety.The results showed that different nitrogen fertilizer rates had significant influences on growth and effect of yield and quality of flue-cured tobacco; in the early planting tobacco area of Longling County, a river valley with low temperature on Longchuan River, applying the pure nitrogen with fertilizer rate of 60～75 kg/hm2 to tbe tobacco plants, the tobacco plants had the best agronomic traits and economic traits, tbe growth of Hongda meet the requirements of quality tobacco, the diseases occurred on Hongda less.Therefore, this treatment will help to improve the quality of tobacco leaves of Hongda.%采用田间小区试验,研究早植烟区红大品种适宜的氮肥用量.结果表明:不同施氮量对烤烟生长发育和产质量有显著效应,龙陵县中低热河谷龙川江早植烟区以施纯氮60-75 kg/hm农艺性状及经济性状表现较好.红大品种达到优质烟长相长势要求,病害发生程度轻,且有利于提高红大烟叶品质.