福建农业学报Issue(5)：443-448,6.
不同连作年限植烟土壤对烤烟生长发育及产质量的影响
Effect of Continuously Cropped Tobacco Soil on Growth,Development,Yield and Quality of Flue-cured Tobacco
摘要
Abstract
Effects of continuously cropped tobacco soils on the grow th ,yield and quality of the flue-cured tobacco variety ,HD ,were studied with a field experiment at Xiangyun ,Yunnan .The results showed that ,as the cropping years increased ,(1) the growth of the tobacco plants was retarded with prolonged growth periods and reduced agronomic traits ;(2 ) the occurrence of tobacco diseases , such as black root rot , black shank , and root-knot nematode ,became gradually serious ;(3) the activities of tobacco nitrate reductase and catalase reduced ;(4) the yield ,output value ,average price and high-to-middle-quality ratio of the flue-cured tobacco leaves decreased ;(5) the contents and balance of the chemical composition of the cured leaves began to gradually deviated from the optimum values .At the same time ,the quality of cured leaves deteriorated . It was concluded that ,as the cropping years of the same tobacco field increased ,the rate of nitrogen assimilation was reduced and the plant′s nitrogen metabolism imbalanced ,while harmful substances accumulated .As a result ,the plant chemistry was ill-affected , the growth stunned ,the disease-and pest-resistance reduced ,and the tobacco yield and quality lowered .关键词
烤烟/连作障碍/产量/品质Key words
flue-cured tobacco/consecutive monoculture/quality/yield分类
农业科技引用本文复制引用
王峰吉,尤垂淮,刘朝科,高峰,丁博锐,古力,高文霞,张重义..不同连作年限植烟土壤对烤烟生长发育及产质量的影响[J].福建农业学报,2014,(5):443-448,6.基金项目
川渝中烟工业有限责任公司资助项目 （）
