烟草科技2024，Vol.57Issue(4)：61-67,7.DOI:10.16135/j.issn1002-0861.2023.0434
促根剂对重庆烤烟根系发育和上部叶产量及质量的影响
Effects of root-promoting agents on root development and yield and quality of upper leaves of flue-cured tobacco in Chongqing
摘要
Abstract
In order to study the influence and mechanism of applying different root-promoting agents on the growth,development and quality of tobacco plants,experiments were conducted to analyze the effects of applying Yiweiyuan organic water-soluble fertilizer(T1),mineral potassium fulvic acid(T2),carbon adsorption polyglutamate(T3)and Fugenduo root-promoting agents(T4)on the growth and development of tobacco roots and the yield and quality of upper leaves,with no root-promoting agent treatment as the control(CK).The results showed that compared with CK,the application of the root-promoting agents increased the root volume of primary,secondary and tertiary modules of tobacco plants by 75.2%-120.5%,50.4%-75.0% and 50.2%-96.5%,respectively.The root vigor of primary and secondary modules also increased significantly.The SPAD values of upper leaves under T1,T2,and T3 treatments increased,and the average daily rate of change of SPAD for upper leaves during the maturing stage decreased.Application of the root-promoting agents increased the total sugar content of tobacco upper leaves.T2 and T3 treatments significantly decreased the nicotine content of tobacco leaves.The application of the root-promoting agents increased the yield,production value and net income of cured upper tobacco leaves by 3.7%-7.2%,6.8%-10.6% and 1 644-4 558.5 RMB Yuan/ha,respectively.Among them,T3 treatment had the largest growth rate.Therefore,the application of carbon adsorption polyglutamate as a root-promoting agent can improve the development and vigor of root,ripening holding ability of upper leaves and quality of tobacco leaves.关键词
重庆烟区/烤烟/促根剂/根系/上部叶/耐熟性Key words
Chongqing tobacco growing area/Flue-cured tobacco/Root-promoting agent/Root/Upper leaf/Ripening holding ability分类
农业科技引用本文复制引用
华仲臣,李学芹,张振,肖庆礼,张帅,王静,符云鹏,姚鹏伟..促根剂对重庆烤烟根系发育和上部叶产量及质量的影响[J].烟草科技,2024,57(4):61-67,7.基金项目
重庆中烟工业有限责任公司项目"重庆烟叶基地高可用性上部烟叶开发与应用"(YL202202) （YL202202）
河南省科技攻关项目"添加有机物料对豫中农田土壤剖面温室气体周转规律的影响"(222102320440). （222102320440）
