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- During the tobacco hardening period, bed of tobacco seedling was the falling target of alate aphids, and was the main resource of tobacco virus spread by aphids. 炼苗期烟草苗床是传毒介体有翅蚜着落的靶子中心 ,是烟田蚜传病毒病的主要初侵染源 ,为防治烟草蚜传病毒病的关键时期。
- The results suggest that medium 14 mixing of peat, fine perlite, and carbonized chaff to a scale is recommended to tobacco seedling production with floating system. 研究结果表明，由泥炭、炭化谷壳和珍珠岩按一定比例配成的14号基质较好的协调了基质中固、液、气的比例，适于漂浮育苗；
- Pesticides commonly used during the tobacco seedling stage were spray applied at both recommended and higher rates to determine phytotoxicity in a greenhouse floating seedling assay. 摘要在漂浮育苗大棚内，选取烟草苗期常用农药，以推荐剂量和超推荐剂量，采用喷雾方式进行药剂药害试验。
- Virginia tobacco seedling by floating cultivation 烤烟漂浮育苗
- The injury dosage and symptoms in tobacco seedling caused by these chemicals were described.The wettable powder chemicals could easily cause slight injury on tobacco seedlings leaves. 结果表明，药剂对烟苗的药害浓度和试验浓度内的药害症状，可湿性粉剂容易引起烟苗叶片轻微药害。
- Improvement of tobacco seedling technology in palette seedbeds 烟草托盘育苗技术改进
- The seedling have shrivel up a bit in the hot sun. 在炎热的太阳光下，幼苗已有一点乾枯。
- The air was reeking with the smell of tobacco. 空气中弥漫着烟草的气味。
- Tobacco injury symptoms were determined for each pesticide at both safe and experimental application rates.Wettable powder formulations produced a low level of injury on leaves of tobacco seedlings. 结果明确了各种药剂对烟苗的安全用药剂量和试验剂量内的药害症状，可湿性粉剂容易引起烟苗叶片轻微药害。
- Two cotyledons have come out from the seedling. 小苗长出了两片子叶。
- The seedling was frozen to death. 幼苗被冻死了。
- When the contents of urea-nitrogen were 75%, tobacco seedlings growth was obviously restrained, photosynthesis and the NR activity reduced, the root absorbing ability dropped than CK. 与对照相比，当尿素态氮为75%25时，烟苗的生长受到明显抑制，叶片的光合特性和NR活性降低，根系吸收能力下降。
- He tamped down the tobacco in his pipe. 他把烟丝紧紧摁实在烟斗里。
- He rammed the tobacco into his pipe. 他把烟丝塞进烟斗。
- In some countries tobacco is a government monopoly. 在有些国家烟草是政府的专卖品。
- Methods for Seed Sterilization before Aseptic Tobacco Seedling Culture 烟草无菌苗培养前的种子消毒技术研究
- Operating Specification for Raising Tobacco Seedling in Tray-water Bed 烤烟托盘水床育苗技术操作规程
- Tobacco fumes filled the air in the room. 室内的空气中充满了香烟的烟雾。
- She cannot stand the smell of tobacco smoke. 她受不了香烟的气味。
- Can I trade my tobacco for your matches? 我用烟草换你的火柴行吗?
