The effects of sulphur nutrition in soil on sulphur accumulation and metabolism in flue cured tobacco leaf were studied.
本文研究了土壤硫营养状况对烤烟烟叶硫吸收累积和代谢的影响。
Pot experiment was carried out to study physiological change and matter accumulation of flue cured tobacco leaf in the course of mature with different K nutrition levels.
采用盆栽试验方法研究了不同钾营养水平下，烤烟烟叶成熟过程中的生理生化变化，并探讨了在不同成熟期的干物质积累状况。
New centers for the manufacture of smoking tobacco and cigarettes followed the culture of bright leaf, flue-cured tobacco to Durham and Winston-Salem, North Carolina.
随着白肋烟和烟熏烟文化的流行，新的烟草和卷烟制造中心转至达勒姆和温斯顿-塞勒姆。
The research indicated that application of oil-cake fermented could promote the growth of flue-cured tobacco plant, enhance leaf yield, improve leaf quality.
实验表明，施用发酵性饼肥，可促进烟株生长发育，提高烟叶产量，改善烟叶质量和增加上等烟比例。
The contents and distribution of Pb, Cd and As in 497 flue-cured and 17 burley tobacco leaf samples collected from major tobacco production regions of China in 2004 were studied.
研究了我国烟叶主产区2004年生产的497份烤烟样品和17份白肋烟样品中铅、镉、砷的含量及分布特征。
The content of tobacco leaf nicotine and smoking nicotine of40 grades leaves of he nan flue - cured tobacco is determined.
测定了河南烤烟(40级)各等级烟叶的烟碱含量和烟气烟碱传输量。
Neutral aroma components and flavor quality in flue-cured tobacco leaf in the west of Henan Province under the zinc fertilizer were studied.
从评吸评价结果看，锌促进了豫西烤烟下部和中部叶片香气质量的提高。
How to increase the fertilizer application efficiency and potassium content in tobacco leaf is a key measure for improving the quality of flue-cured tobacco.
如何提高肥料利用率及烟叶含钾量是提高烟叶品质的关键问题。
The effects of proportional application of cake fertilizer and chemical fertilizer on leaf nitrate, nitrite and potassium of flue-cured tobacco were investigated in a field experiment.
通过大田试验，研究了饼肥与化肥配施对烤烟硝酸盐、亚硝酸盐及钾素的影响。
The changes of leaf ratio of dry to fresh weight in flue-cured tobacco green leaves during the field growth were studied.
田间状况下对烤烟下、中、上三个部位叶片生长发育过程中叶片干鲜比值的变化进行了研究。
The study was carried to investigate the relation between total particle matter (TPM) in leaf of flue-cured tobacco from different regions of China and chemical components of tobacco leaf.
本文对我国不同产区的烤烟烟叶总粒相物(TPM)与烟叶部分内在化学成分的关系进行了研究。
The paper studied of two spurting leaf-fertilizer (FFF1 and FFF2) on flue-cured tobacco growth and the tobacco qualities.
研究了自制的新型烟草多功能叶面肥“烟博1号”（FFF1）和“烟博2号”（FFF2）喷施对烟草生长及品质影响。
According to the 6 one-class districts and 12 second-class districts of flue-cured tobacco leaf planting area general evaluation of the quality of flue-cured tobacco leaf was conduct.
针对目前烤烟种植的6个一级区12个二级区，对其烟叶质量进行了综合评价，并提出了具体的质量改进意见。
Zheng M. Study on effect of light intensity on growth and leaf tissue structure and quality characteristic of flue-cured tobacco [d]. Changsha: Hunan Agricultural University, 2010.
郑明。光照强度对烤烟生长发育和叶片组织结构及品质影响的研究[d]。长沙：湖南农业大学，2010。
In the late stage of flue-cured tobacco growth, under the same level of leaf number, leaf NR activity and root activity increased and then decreased with the increase of nitrogen application.
烤烟生长发育后期，同一留叶数条件下，叶片NR活性、根系活力随着施氮量的增加呈先升高后降低的趋势；
The change tendency of leaf area index of flue-cured tobacco assumed to "S" under different water amount by bunching irrigation.
不同水分处理下烤烟叶面积指数均呈“S”型变化趋势。
The change tendency of leaf area index of flue-cured tobacco assumed to "S" under different water amount by bunching irrigation.
不同水分处理下烤烟叶面积指数均呈“S”型变化趋势。
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