不同调理剂对大安市盐碱土壤的改良效果

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关键词：盐碱土壤；调理剂；淋溶；化学改良；大安市

中图分类号：S156.2；S156.4 文献标识码：A

文章编号：0439-8114（2025）11-0071-09

DOI：10.14088/j.cnki.issn0439-8114.2025.11.009 开放科学（资源服务）标识码（OSID）：

Improvement effect of different conditioners on the saline-alkaline soil in Da'an City

WANGShi-ting1，WANGEn-biao1，WEIXiao-na²，LIJi-zhi1，MENGYao1，SHIDe-zhi1， WANGYong-huan³，LITing-ting1

.ShenyangReseahsiteaustdi;oeicalUveit Liaoning，China；3.LiaoningAgricultural DevelopmentServiceCenter，Shenyang11Oo33，China）

Abstract：TosudytheimprovementectsofdiferentconditionersontetypicalsodasalinalkalisoilinDa’anCityliPro ince，asoilcolumnincubationexperimentwasconductedtoanalyzethereductionefectsoffourconditionersofdesulfurizdgsum （DG），feroussulfate（FS），potassumfulvate（PF），ndfuuralresiue（FR）onthelmiingfactorsflinealkalisoil.tial combinationsofconditioners erescreendbyclusteranalysis，principalcomponentanalysis，andentropyweight-TOPSISethod.A potexperimentwasthenconductedtofurtherinvestigatetheefectsofdiferentconditionercombinationsonsoilimprovementandcrop growth.Temostsuitableconditionercombinationforthesoda-salinealkalisoilinDa'anCitywasselectedbytheentropyweightTOPSIS metod.Theresultsshowed thatferous sulfateanddesulfurized gypsumsignificantlyreducedsoil pHandalkalizationdegree （ P<0.05 ）.Potassiumfulvate（（PF）significantlyincreasedthecontentsofsoilavailable potassiumandhydrolyzablenitrogen，whiledecreasing soil pH and alkalization degree （ P<0.05 ）.Furfural residue（FR）effectively improved soil organic matter content. Under the compoundaplicationcondition，theoptimalamendmentcombinationwaspotassium fulvate：desulfurized gypsum：ferous sulfate =2 1：1，with an application rate of 0.5% .Compared with the control，this combination significantly reduced soil pH by6.29 % and alkalization degree by 36.80% ，increased soil organic matter content by 5.06% ，and improved theplant height and aboveground fresh weight per plant of rice by 18.44% and 38.04% ，respectively.

Key words： saline-alkaline soil;conditioner;leaching；chemical improvement；Da'an City

随着人口不断增加，城市不断扩容，耕地面积不断减少，全球粮食供应量到2050年需提高 50% 以上[1]。（剩余14705字）