烟草连作区
continual planting area of tobacco
大豆连作障碍
Soybean monocropping barriers
连作障碍
Factors affecting growing
Obstacle of continuous mono-cropping
Continuous cropping barrier
replant problem
continuous cropping
Succession monocropping obstacles
Replant obstacle
Continouse cropping stress
Succession cropping obstacle
Continuous cropping obstacle
Replant diseases
Barrier to continuous cropping
Continuous cropping obstacles
obstacles of continuous cropping
continuous cropping’s obstacle
Barrier of continuous cropping
cropping cropping
replant disease
continuous cropping problem
土壤连作障碍
Continuous cropping obstacles
环境烟草烟
environmental tobacco smoke
环境烟草烟气
environmental tobacco smoke
环境烟草烟雾
environmental tobacco smoke
烟草烟污染
Tobacco smoking pollution
tobacco smoke pollution
Tabacco smoke pollution
烟草作业环境
Tobacco processing environment