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《Southwest China Journal of Agricultural Sciences》 2017-09
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Effects of Mineral Elements on Economic Traits and Quality of Flue-cured Tobacco after Topping

KE Mei-fu;CUI Zhi-yan;LI Ai-mei;LIU Hai-lun;TANG Yong-hong;LI Tian-wei;JIN Bao-feng;ZHANG Li-xin;Hanbing County Tobacco Company of Ankang;College of Life Sciences,Northwest A & F University;Zhenan County Tobacco Company of Shaanxi Province;Tobacco Department of Shanxi Province Tobacco Company;Technology Center,China Tobacco Guangdong Industry Co.Ltd.;  
【Objective】The paper aims to study the influence on growth,yield and quality of flue-cured tobacco after spraying mineral elements. 【Method】The field experiment,using Yunyan 99 cultivar as materials,was conducted to carriy out contrast study of spraying different mineral element. 【Result】The results showed that compared with CK( spraying water),spraying zinc sulfate or sodium silicate increased leaf chlorophyll content after topping,spraying zinc sulfate helped nutrient accumulation of upper leaf in mature period,spraying zinc sulfate and borax could coordinate chemical composition of flue-cured tobacco leaf,and promote the economic traits of the indicators. 【Conclusion】Comprehensive analysis,in ecological and climatic conditions of Luonan county,zinc sulfate(1. 5 mg·L~(-1)) were sprayed 3 times,and every 7 days sprayed 1 time after topping,could improve nitrogen and potassium nutrition on upper leaf of flue-cured tobacco in mature period,conducive to carbohydrate accumulation,coordinate chemical components,so as to improve the tobacco yield and quality.
【Fund】: 广东中烟工业有限责任公司技术中心科技项目(粤烟工05XM-QK[2014]015)
【CateGory Index】: S572
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