不同环境胁迫下烤烟苗床期的主要不良症状及其处理措施

Main Symptoms in Flue-Cured Tobacco Seedlings at the Bed Stage Under Environmental Stress

烤烟是我国卷烟工业的主要原料,烤烟苗床期安全管理是烤烟生产的重要前提.烟苗营养不足、生长环境不良会对烟株造成一定影响,严重时会导致烟苗大面积死亡.此外,在苗床期管理时人们通常会使用一些防病、防虫、诱抗剂等化学药剂.化学药剂使用不当时,会对烟苗产生严重的药害.本文结合育苗的实际情况并查阅资料,分析了不同胁迫条件下烟苗的主要不良症状,并提出了应对措施,以期为烟苗实际生产提供技术指导.

Flue-cured tobacco is the main raw material of the tobacco industry in China.Proper seedling bed management of flue-cured tobacco is an important prerequisite for its production.Insufficient nutrition of tobacco plants and changes in external conditions will also have a certain impact on tobacco plants,which,in serious cases,will lead to the death of tobacco plants on large areas.Furthermore,chemical agents such as antibacterial agents,anti-pest agents and resistance inducers are often used in seedbed management.The improper use of chemical agents will cause serious harm to tobacco seedlings.Combined with the actual situation of seedling nursing and access to information,this paper analyzes the main symptoms of tobacco seedlings at the seedbed stage under various adverse environments and proposes the treatment measures,in order to provide a technical guidance for the actual production of tobacco seedlings.