烟草淘汰甲基溴大棚育苗技术研究

Tobacco Greenhouse Nursery Techniques for Methyl Bromide Phase-out

用常规大棚内母床育苗,在大棚内用塑料盘假植,对母床溴甲浣消毒与大棚淘汰甲基溴漂浮育苗进行对比。结果表明:大棚淘汰甲基溴漂浮育苗出苗提早5 d,成苗提早7 d,苗龄减少2 d,出苗率提高16.5个百分点;烟苗素质好;大田烟株生长发育好;可增加产量57 kg/hm2,增加产值2 944.14元/hm2,均价增加0.98元/kg,上等烟比例增加12.08个百分点。

It was used in this paper that motherbed nursery and plastic plate heel in conventional greenhouse.The female bed methyl bromide disinfection and the awning methyl bromide elimination floating nursery had performed in the comparative trial.The results showed that the latter emerged shifted to an 5 days earlier,seedlings were 7 days earlier,the seedling age reduced by 2 days,the rate of seedings emergence enhanceed 16.5%.The tobacco seedling quality was good,and had good growth in the field.Output increased 57 kg/hm2 and output value increased 2 944.14 yuan/hm2,the even price increased 0.98 yuan/kg,the superior tobacco increased by 12.08%.