The field trials were done to study on the effects of nitrogen amount on the yield and nicotine content of sun-cured tobacco.
通过田间试验，研究了不同施氮量对晒烟烟叶产量和烟碱含量的影响。
Overview:sun-cured tobacco, also known as tobacco, the main use of the Division of Shaoguan Nanxiong sun sun-cured tobacco leaf.
概述：晒烟亦称为香料烟，本司晒烟主要采用韶关南雄晒烟叶。
Other air-and sun-cured tobacco items which are not included in the above-mentioned catalogue may be sold at rural or urban trade markets.
未列入名晾晒烟名录的其他晾晒烟可以在集市贸易市场出售。
The rule of dry matter accumulation and nutrient absorption and distribution were studied during the growth of yellow sun-cured tobacco in field.
通过田间试验研究了晒黄烟生长发育过程中干物质和养分积累与分配规律。
By using pot tests, the effect of low-P stress on dark sun-cured tobacco endogenous hormone and root activities were studied during different growth stage.
通过盆栽试验和室内分析，研究低磷胁迫对晒红烟内源激素和根系活力的影响。
During 1987—1990, native sun and air cured tobacco resources in whole China were investigated in order to evaluate their quality and usebility.
中国烟草总公司青州烟草研究所于1987—1990年开展了地方晾晒烟的调查研究。
Effects of different sun-shading treatments plastid pigment on flue-cured tobacco were researched.
研究了不同遮阳处理对不同生育期及不同部位烟叶叶绿素及类胡萝卜素的含量影响。
Effects of different sun-shading treatments plastid pigment on flue-cured tobacco were researched.
研究了不同遮阳处理对不同生育期及不同部位烟叶叶绿素及类胡萝卜素的含量影响。
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