巢湖武都圩稻田田面水氮磷动态变化特征

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关键词巢湖武都圩；水稻；田面水；氮素；磷素；动态变化特征

中图分类号X71文献标识码A

文章编号 0517-6611（2025）20-0071-05

doi：10.3969/j.issn.0517-6611.2025.20.015

AbstractTosentficallymanageutrient-ater，preventandontrolagiculturalonpontsouepolutio，edynamichangesiitr genandpospousipddfeldsufacewaterfolowingonventioalfertlatioereoitodinWuduwei，Chaohu.Tesultsdicated that after the application of basal fertilizer，total nitrogen（TN）and ammonium nitrogen （ NH4+ -N）concentrations peaked on the first day and subsequently declined，stabilizing after7 days.Following the application of tillering fertilizer，TNand NH4+ -N concentrations gradually decreasedfromthtdtotetnthadstabildter7dysAftersalriliatio，soedposporus（D），ndpartlateo phorus（PP）concentratiosiitiallcreasdandtdcreased，withtotalpospous）reachingitsakonefistdadabilizingafer7dasveieeeofospusertlcatiocatsineateateduel turbancediglaofngdlerlsalaldlat ascriticalprodsftrogenloontrolineddelsfdueiaouiily，eitialdayfesalrtiliea were crucial for phosphorus loss control in the same region.

Key WordsWuduwei， Chaohu; Rice;Field surface water;Nitrogen;Phosphorus;Dynamic change characteristics

水稻作为我国首要的粮食作物，其常年播种面积约0.3亿 hm2 ，占全国粮食作物种植面积的 24% ，而其产量约占全国粮食总产量的 35% ，在保障我国粮食安全中发挥着举足轻重的作用[1-3]。（剩余10811字）