施肥量及留叶数对粤烟97产量和化学成分的影响

通过田间试验,研究了施肥量和留叶数对粤烟97生长发育、产量和烟叶化学成分的影响。结果表明:施肥量和留叶数及其互作效应对烟株的农艺性状和经济性状影响显著。施肥量165 kg/hm2、留叶数19～21片和施肥量150 kg/hm2、留叶数19片处理的烤烟田间长势强,经济性状优,烟叶水溶性糖含量较高,总氮、总植物碱含量适宜,化学成分协调。在高施肥量水平下(165 kg/hm2),单株留叶19～21片时粤烟97在江西信丰紫色土旱地种植的产质量表现最佳。

Effects of Fertilizer Application Amount and Remained Leaf Number on Yield and Chemical Components of Yueyan 97

The field experiment was conducted to study the effects of fertilizer application amount and remained leaf number on the growth and yield of Yueyan 97,and the chemical components of its leaves.The results indicated that the fertilizer application amount and remained leaf number as well as their mutual effect had significant influences on the agronomic and economic characters of tobacco plant.In the treatment of applying 165 kg/hm2 fertilizer and remaining 19 ～ 21 leaves as well as the treatment of applying 150 kg/hm2 fertilizer and remaining 19 leaves,the tobacco plant had strong growth vigor,fine economic traits,high soluble sugar content in its leaves,appropriate total nitrogen content and total alkaloid content,and coordinative chemical components.Yueyan 97 showed the best yield and quality in purple-soil upland of Xinfeng,Jiangxi under the conditions of applying 165 kg/hm2 fertilizer and remaining 19 ～ 21 leaves.