种子包衣与施磷肥对烤烟生长及养分累积的影响

选用K326、云烟85、红花大金元等3个烤烟主栽品种进行种子包衣与施磷肥试验.结果表明,烟草种子包衣处理不仅能极大地提高种子的出苗率,而且能够促进种子萌发的速度;但从烟草植株的生物量、根系总根长来看,种子包衣处理都没有表现出较好的趋势,从烟草植株体内氮、磷、钾养分的累积来看,种子包衣处理也没有表现出较好的趋势,说明烟草种子进行包衣处理虽然能够在短期内促进植株的生长,提高其出苗率和缩短出苗时间,但长期效果并不理想.施磷肥能够显著促进供试烤烟品种的生长发育,增加烤烟植株体内钾、磷的含量,降低植株体内氮的含量.

Effects of Seed Coating and P Application on Tobacco Growth and Nutrient Accumulation

The seed coating and phosphorus application experiments were done using three tobacco varieties,including K326,Yunyan85 and Honghuadajinyuan.The results showed that the seed coating could not only improve greatly seed germination rate,but also shorten seed germination time.But seed coating treatment had no obvious effects on tobacco biomass and total root length.And tobacco seed coating had nutrients not also increased the accumulation of macro-nutrients,including nitrogen,phosphorus and potassium,in tobacc...