首页 | 本学科首页   官方微博 | 高级检索  
     

菌丝营养钵栽培对烤烟根系生长的影响
引用本文:艾栋,刘青丽,常乃杰,闫芳芳,边立丽,李斌,李志宏,冯文强,张宗锦,陈曦,张文洪,郑敏瑞,彭志立,张云贵. 菌丝营养钵栽培对烤烟根系生长的影响[J]. 植物营养与肥料学报, 2022, 28(1): 181-190. DOI: 10.11674/zwyf.2021181
作者姓名:艾栋  刘青丽  常乃杰  闫芳芳  边立丽  李斌  李志宏  冯文强  张宗锦  陈曦  张文洪  郑敏瑞  彭志立  张云贵
作者单位:1.中国农业科学院农业资源与农业区划研究所, 北京 100081
基金项目:中国烟草总公司四川省公司科技项目(SCYC201910,SCYC202005)。
摘    要:[目的]针对攀枝花烟区烤烟移栽伸根期干旱、烟苗发育迟缓等问题,研究菌丝营养钵对烤烟根区微生态水肥环境和烟苗生长的影响.[方法]将玉米秸秆切碎后隧道式微波灭菌,利用灰管层孔菌(Fomes lignosus)的速生、菌丝扭结力强、快速腐解纤维素等特点,通过菌丝缠绕玉米秸秆制作成自然降解的圆锥型杯状烟苗移栽营养钵.将菌丝营养...

关 键 词:菌丝营养钵  根系形态  根区  烤烟
收稿时间:2021-04-07

Effects of mycelium-straw bowl on the rhizospheric condition and root growth of flue-cured tobacco
AI Dong,LIU Qing-li,CHANG Nai-jie,YAN Fang-fang,BIAN Li-li,LI Bin,LI Zhi-hong,FENG Wen-qiang,ZHANG Zong-jin,CHEN Xi,ZHANG Wen-hong,ZHENG Min-rui,PENG Zhi-li,ZHANG Yun-gui. Effects of mycelium-straw bowl on the rhizospheric condition and root growth of flue-cured tobacco[J]. Plant Nutrition and Fertilizer Science, 2022, 28(1): 181-190. DOI: 10.11674/zwyf.2021181
Authors:AI Dong  LIU Qing-li  CHANG Nai-jie  YAN Fang-fang  BIAN Li-li  LI Bin  LI Zhi-hong  FENG Wen-qiang  ZHANG Zong-jin  CHEN Xi  ZHANG Wen-hong  ZHENG Min-rui  PENG Zhi-li  ZHANG Yun-gui
Affiliation:1.Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Abstract:  【Objectives】  In the quest for an antidote for the problems of drought and growth retardation during the root extension period of flue-cured tobacco in Panzhihua area, the effects of mycelium-straw bowl on the micro-ecological environment and growth of flue-cured tobacco root were studied.  【Methods】  Corn stover were shredded, sterilized and shaped into a centrum first, then inoculated with Fomes lignosus, when the hyphaet wined throughout the centrum, sterilized again and ready as mycelium-straw bowl. The mycelium-straw bowls were placed in nylon bags and buried in soil in situ, the decomposition rate of mycelium-straw bowl was calculated by weight loss method, and the first-order kinetic model was used to fit its decay characteristic parameters. In the field experiment, there was two transplanting methods, namely, 1) mycelium-straw bowl transplanting method (MF), 6-true-leaves tobacco seedlings with substrate were transplanted into mycelium-straw bowl as experimental treatment (MF), and 2) conventional transplanting method, 6-true-leaves tobacco seedlings was transplanted in soil (CF). Soil temperature and humidity, electrical conductivity (EC), root morphology and root biomass were measured during the whole growth period of flue-cured tobacco.  【Results】  Compared with CF, MF reduced soil moisture by 6.2% and 5.7% on the day and 10 days after transplanting, and raised soil moisture by 2.0% and 3.5% on the 20 days and 30 days after transplanting. At the first rainfall, 20 days after transplanting MF decreased soil EC by 251.3 μS/cm compared with 10 days after transplanting. At the second rainfall, 50 days after transplanting MF decreased soil EC by 487.2 μS/cm compared with 40 days after transplanting; at the third rainfall (120 days after transplanting), MF increased EC by 35.0 μS/cm compared with 60 days after planting. The root surface area, volume and root tip number of MF were significantly higher than those of CF, which were increased by 27.5%, 55.7% and 36.4%, respectively. The length of root (diameter >2.0 mm) and the tip number of root (diameter <1.0 mm) in MF treatment were significantly higher than those under CF. The initial and the end day for the rapid accumulation and the initial day for the maximum accumulation rate of root biomass in MF treatment were 3.9 days, 9.9 days and 6.9 days earlier than in CF. The accumulation duration of root biomass in MF was 6 days shorter than CF, and the maximum accumulation rate in MF was 33.3% higher than that of the CF. At the 60, 75, and 90 days of transplanting, root biomass in MF treatment was 6.3 g/plant, 19.3 g/plant and 10.8 g/plant higher than those in CF.   【Conclusions】  The mycelium-straw bowl could improve the rhizospheric physical and chemical environment, thus stimulating an optimum root development by increasing the fine roots and the surface area, and promoting the accumulation of dry matter and absorption of nutrients in tobacco roots.
Keywords:mycelium-straw bowl  root morphology  rhizosphere  flue-cured tobacco
本文献已被 维普 等数据库收录!
点击此处可从《植物营养与肥料学报》浏览原始摘要信息
点击此处可从《植物营养与肥料学报》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号