Mengshancui jujube was the middle type between wild jujube and Chinese jujube, its drought resistance abilities and yields in Mengyin were higher than other varieties.
3
烟草类型、植株部位、栽培方法、成熟度和肥料处理是决定烟草属植物中生物碱含量的几个重要因素。
The tobacco types, stalk position, cultivation method, maturity and fertilizer are the most important factors which determine the content of nicotine in tobacco plant.