竹菌共生体系对巨菌草根系活力、土壤微生物及养分的影响  

Effect of bamboo and microbial symbiotic system on root vigor,soil microbes,and nutrients in Pennisetum Giganteum Z.X.Lin

作　　者：陈晓雅 赵兰 廖鸿 龙文聪 杨瑶君 肖析蒙 CHEN Xiaoya;ZHAO Lan;LIAO Hong;LONG Wencong;YANG Yaojun;XIAO Ximeng(Bamboo Diseases and Pests Control and Resources Development Key Laboratory of Sichuan Province,Leshan Normal University,Leshan 614000,China;Jiangxi Forestry Science and Technology Promotion and Propaganda Education Center,Nanchang 330000,China)

机构地区：[1]乐山师范学院竹类病虫防控与资源开发四川省重点实验室,四川乐山614000 [2]江西省林业科技推广和宣传教育中心,江西南昌330000

出　　处：《安徽农学通报》2025年第8期54-57,共4页Anhui Agricultural Science Bulletin

基　　金：四川省科技计划项目(重点研发项目)(2023YFS0480);乐山市科技计划项目(23SZD042);乐山师范学院科研培育项目(2022SSDJS011)。

摘　　要：为研究竹菌共生体系对植物生长以及土壤环境改良效果的影响,以巨菌草为试验材料,设置CK(对照组)、T_(1)(高吸水性竹纤维3 g,竹纤维共生菌7 g)和T_(2)(高吸水性竹纤维6 g,竹纤维共生菌14 g)3个处理,测定巨菌草根系活力、对应土壤微生物含量及速效养分含量。结果表明,处理组的巨菌草平均根系活力均高于CK,其平均根系活力表现为T_(2)>T_(1)>CK。第30天时,T_(2)的土壤细菌数量最高,为180.67×10^(4) CFU/g,较T_(1)与CK分别提高301.49%和392.69%;T_(1)与T_(2)的土壤真菌数量均在第30天时最高,分别为96.00×10^(4)、97.33×10^(4) CFU/g,较CK分别提高317.39%、323.17%;第20天时,T_(1)、T_(2)的土壤放线菌数量较CK分别提高512.82%、698.26%。T_(1)、T_(2)的有效钾含量较CK分别提高99.54%、73.38%,速效磷含量分别提高36.54%、101.92%,有机质含量有所降低。综合表明,竹菌共生体系能够提升巨菌草根系活力,对土壤微生物数量和有效钾、速效磷含量的促进作用较明显。To investigate the effects of a bamboo and microbial symbiotic system on plant growth and soil environment improvement,using Pennisetum Giganteum Z.X.Lin as the experimental material.3 treatments were set up:CK(control group),T_(1)(3 g of highly absorbent bamboo fiber+7 g of bamboo fiber symbiotic fungi),and T_(2)(6 g of highly absorbent bamboo fiber+14 g of bamboo fiber symbiotic fungi).The root activity of Pennisetum giganteum Z.X.Lin,soil microbial content,and available nutrient content were measured.The results showed that the average root activity of Pennisetum giganteum Z.X.Lin in the treatment groups was higher than CK,with the performance ranked as T_(2)>T_(1)>CK.On the 30th day,the soil bacterial count in T_(2) was the highest,reaching 180.67×10^(4) CFU/g,which was 301.49%and 392.69%higher than that in T_(1) and CK,respectively.The soil fungal counts in T_(1) and T_(2) both peaked on the 30th day,reaching 96.00×10^(4) and 97.33×10^(4) CFU/g,respectively,representing increases of 317.39%and 323.17%compared to CK.On the 20th day,the soil actinomycete counts in T_(1) and T_(2) increased by 512.82%and 698.26%,respectively,compared to CK.The available potassium content in T_(1) and T_(2) increased by 99.54%and 73.38%,respectively,compared to CK,while the available phosphorus content increased by 36.54%and 101.92%,respectively.However,the organic matter content showed a slight decrease.In conclusion,the bamboo and microbial symbiotic system can enhance the root activity of Pennisetum Giganteum Z.X.Lin and significantly promote the growth of soil microorganisms,as well as the content of available potassium and phosphorus.

关 键 词：竹菌共生体系 根系活力 微生物数量 土壤养分 巨菌草 

分 类 号：S543.9[农业科学—作物学]