不同菌糠用量基质对烟草幼苗生长及生理指标的影响

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中图分类号：S572 文献标志码：A 文章编号：1671-4652（2026）01-0046-09

Effects of different fungal bran dosage substrates on the growth and physiological indexes of tobacco seedlings

FA Siqi1，JIN Zhe²，YANG Guocheng²，WANG Guohui²，LIU Yu2 ， GUO Xingzhu²，QIN Shuang1 ，NAN Li1

（1. College of Agriculture，Yanbian University，Yanji 133oo2，China; 2. Yanbian Branch of Jilin Provincial Tobacco Company，Yanji 1330O2， China）

ABSTRACT：Inorder to exploreanew typeof tobaco seedling substrate，the present studyused humus specialized soil intobaccoas thecontrol groupandfermentedfungalchaff，perliteandsandindiferent volumeratiostoformninesedlingsubstrate treatment groups. Tobacco seedling nusery experiments were carried out in a greenhouse environment （temperature 10-35∘C ， relative humidity 45%-65% ），and the physicochemical indexes，agronomic traits， physiological indexes，and micronutrient contents of the substrates were measured，andthesignificanceof the diferences between treatments was compared by using the analysis of variance（ANOVA） and the t -test of independent samples （ P<0.05 ）. The results showed that when the proportion of fermented mushroom bran in the seedling substrate was 30%-50% ，the physicochemical indexes of the substrate were reasonable，andthecultivated sedlings showed good performance in agronomic traits such as number of leaves，plant height，stem circumference，etc.，and the physiological indexes such as rootvitality，net photosynthesis rate，transpiration rate，stomatal conductance，etc.，were beter than those of thecontrol group，and the content of micronutrients variedbut was still within a reasonable range，andallof them met the standard of strong seedlings.This study provides data support for fermented mycorhizal bran asa new type of tobacco seedling substrate insteadof humus specialized soil，which is of great significance to promote the sustainable development of tobaco seedling substrate.

KEY WORDS： tobacco; black fungus chaff； new seedling substrate; physiological indexes

烟草（Nicotiana tabacumL.）作为我国重要的农业经济作物和出口产品，在农业产业中占据重要位置。（剩余14176字）