放线菌秸秆降解液对西瓜连作土壤生态结构的影响

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中图分类号：S651 文献标志码：A 文章编号：1673-2871（2025）08-101-10

Effects of Trichoderma straw degradation solution on soil ecological structure of watermelon continuous cropping

JIA Yunhe'，WANG Xiqing'，YAN Wen'，FU Yongkai’，YOU Haibo'，WANG Lidong'，LIU Xiaofei²， LIU Chao'

（1.HorticultuchHelojndemyfltualieesHabin，elongnarbil University，Harbin5oo28，Heilongjiang，China）

Abstract：To explore the soil improvement methods for continuous watermeloncropping，the soil forcontinuous Watermeloncroppingwastreatedwithactinomycetesstrawdegradationsolution.Four treatments，namelyCK，straw（J），actinomycetes（F），and straw+actinomycetes（JF），weresetup.The effects ofdiferenttreatments onsoil chemicalproperties，enzymeactivities，microbialcontent，andthe growthanddevelopmentof watermelonseedlings were determinedand analyzed.High-throughput sequencing wasconductedondiferent treated soils tostudy the changes in their microbial community structure.Theresults showed that compared with CK，the pH，organic mater content，REDOX enzyme（urease，nvertase，catalase）activityndbacterialcountof thesoil treatedwithJFweresignificantlyincreased，whilehefungal countwassignificantlydecreased.ComparedwithCK，treatmentsJ，FandJFsignificantlyenhancedtherichessof soil microbialcommunities，andthediferentiationoffungalandbacterialcommunities inthefourtreatmentswasrelatively obvious.Compared with theCK，JandFtreatments，theJFtreatment significantly increased the strong seedling indexof watermelonsedlings.ItisspeculatedthatCladosporium，Trichoderma，Bacillusandactinomycetesworktogetherto improvethe soil ecological structureof watermelon continuous croppng.Theresearch resultsprovide theoretical basis and practical support forsoil improvement in continuous watermelon cropping and the healthyand sustainable development of the watermelon industry.

Keywords：Watermelon; Actinomycetes; Straw; Continuous cropping;Soil

西瓜是世界范围内广泛种植的经济作物，2021年中国西瓜产量达6101.4万t，占全世界的 60% 以上，种植面积常年保持在140万 hm2 左右，占全球种植面积的 46%[1] 。（剩余14430字）