临洮县不同玉米种植区域线虫数量与土壤养分相关性研究

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关键词：线虫；土壤养分；数量特征；相关性；临洮县

中图分类号：S513；S154.386 文献标志码：A 文章编号：2097-2172（2025）07-0681-06

doi：10.3969/j.issn.2097-2172.2025.07.015

Correlation Analysis of Nematode Quantity and Soil Nutrients in Different Maize Planting Areas of Lintao County

SUN Huidong， WEN Ruiting，MU Xiaoling， WANG Peng （Lintao Agricultural School，Lintao Gansu 7305OO，China）

Abstract：Todevelopamethodofcontrolingthenumberofnematodesbyimprovingsoilconditions，fromMay5th2，the nutrientcontentsandnematodenumbersofmaizerhizospheresoilweremeasuredevery3Odaysin14diferentmaizeplantingareas inLintaoCounty.Thechangesofsoil nematodeswithtimeandthecorelationbetweensoilnematodesandsoilnutrientswere analyzed.Resultsindicatedthatthenumberofnematodesinmaizerhizospheresoilincreasedwiththegrowthperiodofmaize. Significantvrtiosinsiltrentlevelsereedossdientsoilsontentsofiltotaltrogenvlablesos， availablepotassum，andogancmatterexhbitednolinearcorrelationswithnematodeabundance.Overall，nematodepoplations can be managed by adjusting soil nutrient levels. Specifically，maintaining available phosphorus content below 40mg/kg ，available potassium content below 200mg/kg， and applying an appropriate amount of nitrogen fertilizer can effctively control nematode numbers.

KeyWords：Nematode，Soil nutrient; Quantity characteristic; Correlation，Lintao County

线虫是土壤中数量和功能类群最丰富的生物类群之一，自然界中线虫约有50万 ～100 万种，其中植物线虫约占 10%[1-4] 。（剩余7466字）