Metal content in tobacco leaf primarily is driven by the metal content of the soil in which it is grown, rather than resulting from processing.27.
烟叶中的重金属含量是由其产生的土壤带入的，而不是在生产加工过程中人为添加。
Potted cultivation was used to study the chloride distribution in different tobacco plant organ, and the relation of chloride content with soil, applied fertilizer and irrigated water in tobacco leaf.
应用盆栽法研究了氯在烤烟中的分布以及土壤、施肥与灌溉水含氯量对烟叶氯含量与分布的影响。
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。
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