磷石膏、水稻秸秆和鸡粪联合堆肥及其改良土壤的效果

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关键词：磷石膏；水稻秸秆；鸡粪；联合堆肥；腐殖化；土壤改良

中图分类号：S141.4 文献标识码：A

文章编号：0439-8114（2025）08-0073-06

DOI：10.14088/j.cnki.issn0439-8114.2025.08.011 开放科学（资源服务）标识码（OSID）：口

Co-composting of phosphogypsum， rice straw and chicken manure and its effect on soil improvement

HEYing-lin 1，2 ，LIWen-long²，CHI Ru-an1，SHIJun-wei²，LI Jian-fen²，QIN Zhen-hua² （1.HubeiTGsbtoa3bei；loicaEoalEinu University，Wuhan430023，China）

Abstract：Ricestrawwasusedasthemainawcompostingmaterialandchickenmanurewasused toadjusttheratioofcarbontonitro gen，then 30% phosphogypsum according to the mass ofdrystraw was added to explore the effects of phosphogypsum on straw+chickenmanurecompostingprocessandalsothesoil improvementof thecompostproductswasinvestigated.Theresultsshowedhatcomposthadignificantdecompositionanddisintegrationefectsonstrawandphosphogypsum.Inthecompostingprocess，thedurationof the high temperature period of the stack containing 30% phosphogypsum still met the requirement of harmless composting，and the temperature stabilityinthelaterstageofcomposting wasimproved.Attheendofcomposting，theseedgerminationindexvaluecould reach 106.77% .The application efect ofcompost products in soil showed that compared with the straw+chicken manure compost productwithoutphosphogypsum，thecompstfertilizerwithphosphogypsumcouldincreasethesaturatedwatercontentfieldwaterapacity，electricaloductiityndvalableosphrusotentofsilroteprspetiveortilzatio，teompostingfo phogypsum + straw + chicken manure had the potential to improve soil.

Key words：phosphogypsum； rice straw； chicken manure；co-composting; humification； soil improvement

秸秆是作物收割后产生的副产物，是丰富的生物质原料来源[1]。（剩余9118字）