Effects of Different Chemical Fertilizer Reduction Techniques on Flue-cured Tobacco Production  

作　　者：Longfeng GUI Lei XIA Jing YANG Wei YAN Yu ZHOU Yuzhong ZHOU Haohan GONG Mengsheng ZHANG Yeming FU Xianyi ZENG Xia NI 

机构地区：[1]Zhaotong Company,Yunnan Provincial Tobacco Company,Zhaotong 657000,China

出　　处：《Agricultural Biotechnology》2023年第6期48-51,61,共5页农业生物技术（英文版）

基　　金：Supported by Science and Technology Program of Yunnan Company of China National Tobacco Corporation(2020530000241022).

摘　　要：[Objectives]This study was conducted to find out the most suitable special formula fertilizer for flue-cured tobacco production in tobacco-growing areas of Zhaotong City,so as to provide a basis for scientific fertilization and reduced application of inorganic fertilizers with improved efficiency in tobacco production in Zhaotong City.[Methods]Different formulas of special base fertilizer and special topdressing for tobacco were designed by optimizing and adjusting the application amounts and proportions of nitrogen,phosphorus,potassium and medium trace elements in fertilizer formulas,and the formulas of special base fertilizer and special topdressing for flue-cured tobacco production were selected through a field plot experiment.[Results]The combination of special base fertilizer and special topdressing was conducive to the early growth and rapid growth of tobacco plants under the condition of reduced fertilizer application,and the treatment using organic-inorganic compound fertilizer as the special base fertilizer was the most obvious,with an average growth period of two days increased.Compared with conventional fertilization,the yield,output value,average price,proportion of superior tobacco and proportion of medium and superior tobacco increased in the organic-inorganic compound fertilizer treatment,with the yield increasing by 5.96%,the output value increasing by 17.08%,the average price increasing by 10.49%,the proportion of superior tobacco increasing by 4.63%,and the proportion of medium and superior tobacco increasing by 2.44%.It was concluded from indexes including growth period,agronomic traits,disease incidence and economic traits,the fertilization mode of organic-inorganic compound fertilizer with the addition of trace elements(boron,magnesium and zinc)applied as the base fertilizer and nitrogen and potassium topdressing was most efficient and economic.[Conclusions]This study provides a basis for scientific fertilization and reduced application of inorganic fertilizers with improved efficiency in tob

关 键 词：FERTILIZER Flue-cured tobacco production Soil nutrient Economic character Quality of flue-cured tobacco Zhaotong 

分 类 号：X503.23[环境科学与工程—环境工程] S572[农业科学—烟草工业]