微生物菌剂对烤烟光合特性及产质量的影响

摘要

采用田间试验方法,以微生物菌剂为研究对象,设置4个处理:对照(T1,CK)、蘸根处理(T2)、蘸根处理+团棵期喷施(T3)、蘸根处理+团课期喷施+旺长期喷施(T4),研究了微生物菌剂对烤烟生长发育、光合特性及产质量的影响,结果表明:与T1相比,T3、T4处理显著提高了烟株株高、茎围、叶片数和最大叶片值;增加了叶片光合色素的含量,改善了叶片光合性能;降低了烤后烟叶中烟碱和氯离子含量,提高了钾离子含量;提高了烟叶的产量、产值和中上等烟比例,显著增加了烟农的经济效益.%The effects of microbial agent on the growth, development, photosynthetic characteristics, yield and quality of flue-cured tobacco were studied through field experiments by setting up the following 4 treatments: the control ( T1 , CK) , dipping roots ( T2 ) , dipping roots+ spraying at resettling stage ( T3 ) , dipping roots+ spraying at resettling stage+ spraying at vigorous growth stage ( T4 ) . The results showed that:as compared with the control T1 , the treatments T3 and T4 could significantly improve the plant height, stem circumference, leaf number and maximum blade value of tobacco plants;could increase the content of pho-tosynthetic pigments in leaves, and improve their photosynthetic performance; could reduce the contents of nicotine and chloride ion in the cured tobacco leaves, and increase their potassium ion content; could enhance the yield and output value of tobacco leaves, as well as the proportion of medium and first-class tobacco leaves, and significantly increase the economic benefits of to-bacco-planting farmers.