有机营养液对烟苗根系发育与生理特征的影响  

Effect of Organic Nutrient Solutions on Root Development and Physiological Feature of Flue-cured Tobacco Seedlings

作　　者：赵会纳[1] 潘文杰[1] 雷波[1] 陈懿[1] 杨丙贤[2] 刘照[2] 

机构地区：[1]贵州省烟草科学研究所,贵州贵阳550081 [2]西南大学农学与生物科技学院,重庆400715

出　　处：《西南农业学报》2010年第6期1863-1866,共4页Southwest China Journal of Agricultural Sciences

基　　金：贵州省烟草公司(专卖局)项目"有机烟叶综合生产技术的研究与开发"(110200902072)

摘　　要：为替代化学肥料,提高有机肥源在烤烟育苗中的效率,以烤烟生产上所用育苗专用肥作对照,研究沼液和鱼蛋白有机液肥对烤烟烟苗根系发育及生理特性的影响。结果表明:有机营养液比育苗专用肥所育烟苗总根长、根平均直径、根表面积、根体积、侧根数均有不同程度的增加。其中沼液处理烟苗根系总根长、根表面积、根体积为最大。根系活力和根冠比也表现为沼液处理>鱼蛋白有机液肥处理>对照。可见,有机营养液对根系发育和生长有明显的促进作用,以沼液处理较好。The comparative experiment was conducted to study the effects of different organic nutrient solutions on root development and physiological feature of flue-cured tobacco seedlings for enhancing utilization efficiency of organic fertilizer in raising flue-cured tobacco seedlings to replace chemical fertilizer.The results showed that the total root length,average root diameter,root superficial area,root volume and lateral roots of the flue-cured tobacco seedlings applied with organic nutrient solutions increased in varying degrees compared with those of the flue-cured tobacco seedlings applied with the special-purpose fertilizer,the total root length,root superficial area,root activity,root/shoot ratio and root volume of the flue-cured tobacco seedlings applied with biogas slurry was the highest among three treatments,followed by fish protein organic solution,which indicates that applying organic nutrient solutions can promote root growth and development of flue-cured tobacco seedlings and applying biogas slurry is better than applying fish protein organic solution in raising flue-cured tobacco seedlings.

关 键 词：有机营养液 烟苗 根系形态 根系活力 

分 类 号：S145.9[农业科学—肥料学]