{"id":11001,"date":"2025-10-19T23:53:02","date_gmt":"2025-10-19T21:53:02","guid":{"rendered":"https:\/\/tmg.hu\/?p=11001"},"modified":"2026-01-21T14:59:37","modified_gmt":"2026-01-21T13:59:37","slug":"mit-o-humusu-in-nova-interpretacija-organske-snovi-v-tleh","status":"publish","type":"post","link":"https:\/\/tmg.hu\/sl\/mit-o-humusu-in-nova-interpretacija-organske-snovi-v-tleh\/","title":{"rendered":"Mit o humusu in nova interpretacija organske snovi v tleh"},"content":{"rendered":"<p><strong>Dolgo \u010dasa je bila tla obravnavana kot nekak\u0161na \u201e\u010drna skrinjica\u201d, v kateri rastlinski ostanki prehajajo biolo\u0161ko razgradnjo in neke skrivnostne kemijske spremembe, kar ima za posledico nastanek humusa, ene najpomembnej\u0161ih in skoraj \u010darobnih sestavin tal. Klasi\u010dna teorija humusa, ki temelji na kemi\u010dni sintezi te\u017eko razgradljivih organskih snovi, je v zadnjih dveh stoletjih opredeljevala razmi\u0161ljanje v znanosti o tleh. Vendar pa so raziskave v zadnjih desetletjih to stali\u0161\u010de temeljito postavile pod vpra\u0161aj.<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"750\" height=\"500\" src=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19.png\" alt=\"\" class=\"wp-image-11003\" srcset=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19.png 750w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19-300x200.png 300w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19-18x12.png 18w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19-450x300.png 450w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-19-600x400.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p>Po najnovej\u0161ih znanstvenih ugotovitvah vsebnost humusa v tleh ni kemijsko stabilna snov na dolgi rok, ampak se nenehno spreminjajo\u010da kombinacija organskih spojin v razli\u010dnih stanjih. To so deloma ostanki mrtvih organizmov in deloma mikrobni metaboliti, katerih usoda je v veliki meri odvisna od njihovega fizi\u010dnega okolja: bodisi so dostopni razgrajujo\u010dim organizmom bodisi postanejo bolj trajni, ko so zaprti v mineralnih povr\u0161inah ali agregatih.<\/p>\n\n\n\n<p>Ta sprememba pristopa pomeni tudi radikalno novo smer v upravljanju tal: klju\u010d do ohranjanja organske snovi je, da se \u010dim bolj izogibamo motenju tal, da bi za\u0161\u010ditili njihove \u017eivljenjske procese in fizi\u010dno strukturo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mikrobiolo\u0161ke korenine: tla kot zunanji prebavni sistem<\/h2>\n\n\n\n<p><em>Anne Bikl\u00e9&nbsp;<\/em>in .<em>&nbsp;David Montgomery<\/em>&nbsp;(2016) so zapisali: tla niso samostojni organizem, vendar v mnogih pogledih delujejo kot zunanji \u010drevesni sistem. Mikroorganizmi, ki \u017eivijo v tleh&nbsp;<a href=\"https:\/\/agraragazat.hu\/hir\/agrar-bakteriumtragya-hatas-mezogazdasag\/\" target=\"_blank\" rel=\"noreferrer noopener\">ru\u0161iti in preoblikovati<\/a>&nbsp;organske snovi, ki tako postanejo hranila, ki jih lahko rastline absorbirajo.<\/p>\n\n\n\n<p>Enaka mikrobiolo\u0161ka logika deluje v \u010dlove\u0161kem \u010drevesju, okoli korenin rastlin in v tleh: mikroorganizmi pridobivajo in pretvarjajo spojine, ki so bistvene za njihove gostitelje (ljudi, \u017eivali ali rastline). Ta mikrobiomski pristop revolucionira na\u0161e razumevanje tal:&nbsp;<strong>Kro\u017eenje organskih snovi v tleh ni mogo\u010de lo\u010diti od presnove \u017eivih organizmov.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Uni\u010denje teorije humusa<\/h2>\n\n\n\n<p>Po tradicionalnem pogledu je obstojni humus sestavljen iz velikomolekularnih, kemi\u010dno stabilnih polimerov, ki so odporni proti razgradnji in ostanejo v tleh ve\u010d stoletij. Nasprotno pa&nbsp;<em>Markus Kleber<\/em>&nbsp;in .&nbsp;<em>Johannes Lehmann<\/em>&nbsp;Leta 2015 je revija Nature objavila \u010dlanek z naslovom \u201e<em>Sporna narava organske snovi v tleh<\/em>\u201dV svoji \u0161tudiji z naslovom \u00bbVpliv interneta na gospodarstvo\u00ab so poudarili, da ni prepri\u010dljivih dokazov, da&nbsp;<a href=\"https:\/\/mezohir.hu\/2025\/06\/07\/agrar-regenerativ-jovokep-talajmegujitas-mezogazdasag\/\" target=\"_blank\" rel=\"noreferrer noopener\">humus<\/a>v tej obliki je sinteza v redu.<\/p>\n\n\n\n<p>Po mnenju avtorjev organska snov v tleh ni zbirka lo\u010denih, stabilnih spojin, ampak me\u0161anica organskih molekul, ki se nenehno razgrajujejo in preoblikujejo. Klju\u010d do trajnosti ni kemi\u010dna odpornost, ampak dejstvo, da je organska snov fizi\u010dno nedostopna za razgrajevalne organizme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Model kontinuitete tal<\/h2>\n\n\n\n<p>A\u00a0<em>Lehmann-Kleber<\/em>-tip pristop je iz\u0161el iz\u00a0<em>Model kontinuitete tal<\/em>, po katerem ni ostre meje med sve\u017eo organsko snovjo, vmesnimi stanji in \u201ehumusom\u201d. Organska snov je v stanju nenehne preobrazbe in je vedno odvisna od tega, ali imajo mikroorganizmi dostop do nje ali pa ostane zaprta. Ta na\u010din razmi\u0161ljanja nadome\u0161\u010da prej\u0161nji paradigma \u201estabilnega humusa\u201d in ponuja dinami\u010dno, povezano sliko organske snovi v tleh.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fizi\u010dna za\u0161\u010dita: zagotovilo trajnega organskega materiala<\/h2>\n\n\n\n<p>Trajnost torej ni kemijska magija, ampak fizi\u010dna za\u0161\u010dita.&nbsp;<em>Jennifer Dungait<\/em>&nbsp;<em>in sodelavci<\/em>&nbsp;(2012) so poskusi dokazali, da usodo organske snovi v prvi vrsti dolo\u010dajo&nbsp;<strong>dostopnost mikroorganizmov<\/strong>&nbsp;odvisno. To je mogo\u010de dose\u010di z dvema glavnima mehanizmoma:<\/p>\n\n\n\n<p>1. Ve\u017eanje mineralov: organske molekule se adsorbirajo na povr\u0161ino glinenih mineralov in oksidov, kjer jih mikroorganizmi te\u017eje dose\u017eejo.<\/p>\n\n\n\n<p>2. Zaprtje v mikroagregatih: organska snov je fizi\u010dno zaprta v drobnih drobtinah, ki se oblikujejo v strukturi tal, kar prepre\u010duje njeno razgradnjo s strani razgrajujo\u010dih organizmov.<\/p>\n\n\n\n<p>To pojasnjuje, zakaj obdelava tal vodi do hitre izgube ogljika: plug razdrobi agregate in sprosti prej za\u0161\u010diteno organsko snov, ki se nato hitro razgradi in vstopi v atmosfero kot ogljikov dioksid.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Koreninski sistemi in mikroorganizmi: viri organske snovi<\/h2>\n\n\n\n<p>Korenine rastlin in izlo\u010dki iz korenin imajo odlo\u010dilno vlogo pri nastajanju obstojnih organskih snovi. \u017dive korenine neprestano spro\u0161\u010dajo organske spojine v tla, ki hranijo mikrobne skupnosti. Ti mikroorganizmi razgrajujejo organske snovi in jih nato prek svojih teles in metabolitov vklju\u010dijo v zaloge organskih snovi v tleh. V poljedelstvu to pomeni, da prisotnost trajnih \u017eivih korenin (npr. prek pokrivnih rastlin) ne \u0161\u010diti le tal pred erozijo, ampak zagotavlja tudi neprekinjen vir organskih snovi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Humus ali organska snov?<\/h2>\n\n\n\n<p>Vsebnost humusa%, prikazana v rezultatih testiranja tal, dejansko ka\u017ee skupno vsebnost organskih snovi v vzorcu. V laboratorijih se organske ogljikove spojine v tleh obi\u010dajno oksidirajo z me\u0161anico bikromata in \u017eveplove kisline. Barva raztopine se meri kolorimetri\u010dno, rezultat pa se uporabi za dolo\u010ditev koli\u010dine ogljika.<\/p>\n\n\n\n<p>Dobljena vrednost se pomno\u017ei s faktorjem (1,724), ki temelji na predpostavki, da ta \u0161tevilka upo\u0161teva tudi pribli\u017eno razmerje med kisikom, vodikom in drugimi elementi. Postopek torej temelji na mo\u010dni oksidativni razgradnji, ki raztopi vse organske snovi \u2013 tako \u017eive kot mrtve.<\/p>\n\n\n\n<p>Zato, ko govorimo o \u201evsebnosti humusa\u201d na podlagi laboratorijskih testov, se v resnici nana\u0161amo na tla.&nbsp;<strong>odstotek skupne vsebnosti organskih snovi<\/strong>&nbsp;To moramo ceniti. To vklju\u010duje rastlinske in \u017eivalske ostanke, mikroorganizme&nbsp;<strong>\u017eiva in mrtva biomasa,<\/strong>&nbsp;mikrobni metaboliti, pa tudi organske spojine, ki so dolgoro\u010dno za\u0161\u010ditene z vezavo na mineralne delce ali v pore agregatov. Glede na to bi bilo primerno izraza \u201ehumus\u201d in \u201eorganska snov\u201d obravnavati kot sopomenki in pojem raz\u0161iriti, da vklju\u010duje vse \u017eive in mrtve organske sestavine.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"613\" src=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-20.png\" alt=\"\" class=\"wp-image-11004\" srcset=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-20.png 750w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-20-300x245.png 300w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-20-15x12.png 15w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-20-600x490.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>Model kontinuitete tal na podlagi Lehmanna in Kleberja<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mikrobiolo\u0161ki izvor organske snovi v tleh<\/h2>\n\n\n\n<p>Pomemben del organskih snovi v tleh, zlasti frakcije obstojnih organskih snovi, je mikrobiolo\u0161kega izvora. Presnovni produkti mikroorganizmov, celi\u010dne stene mrtvih organizmov in njihovi razgradni produkti se dolgoro\u010dno vklju\u010dijo v talno matriko. Trdovratne organske snovi torej ne izvirajo neposredno iz rastlin, ampak se ohranjajo skozi \u017eivljenjske aktivnosti mikroorganizmov in igrajo klju\u010dno vlogo pri zmogljivosti tal za shranjevanje ogljika in njihovi rodovitnosti (<em>Miltner in sod.,<\/em>\u00a02012;\u00a0<em>Dohnalkova in sod.,<\/em>\u00a02017).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kaj to v praksi pomeni?<\/h2>\n\n\n\n<p>Prakti\u010dno sporo\u010dilo znanstvenih ugotovitev je jasno:<\/p>\n\n\n\n<p>\u2011 Motnje je treba zmanj\u0161ati na minimum.&nbsp;<a href=\"https:\/\/agraragazat.hu\/hir\/agrar-regenerativ-rendszerek-jovoje-mezogazdasag\/\">regenerativne metode<\/a>&nbsp;in sistemi brez oranja so bistveni.<\/p>\n\n\n\n<p>- Zagotoviti je treba trajne koreninske sisteme. Med rastno sezono in zunaj nje je to mogo\u010de dose\u010di s pokrivnimi kulturami, raznoliko kolobarjenjem, medkulturno pridelavo in trajnimi komponentami.<\/p>\n\n\n\n<p>- Tla je treba negovati. To je mogo\u010de dose\u010di tako, da se ostanki pridelkov pustijo na mestu, ohranja trajna rastlinska odeja, zagotovi raznolikost produktov fotosinteze in izlo\u010dkov korenin z raznoliko vegetacijo ter zmanj\u0161a kemi\u010dno onesna\u017eevanje.<\/p>\n\n\n\n<p>Prakse Zdru\u017eenja kmetov za obnovo tal prav tako ka\u017eejo, da opustitev obdelave tal in&nbsp;<a href=\"https:\/\/tmg.hu\/sl\/\">podpora naravnim procesom<\/a>&nbsp;To pomaga ohranjati in pove\u010dati vsebnost organskih snovi v tleh na dolgi rok. Vendar je pomembno opozoriti, da&nbsp;<strong>regeneracijske vaje<\/strong>&nbsp;Zaradi strukture tal, sposobnosti zadr\u017eevanja vode in upravljanja s hranili se izbolj\u0161ave za\u010dnejo pojavljati veliko prej, kot bi pri\u010dakovali, da bi pri\u0161lo do znatnih sprememb v vsebnosti humusa. Humus%, ki ga zaznavajo laboratorijski testi, ka\u017ee skupno vsebnost organskih snovi v tleh, vendar je za razumevanje trenutne biolo\u0161ke aktivnosti tal in njihovih takoj razpolo\u017eljivih zalog ogljika vredno izmeriti tudi labilni ali aktivni ogljik (POXC), ki se hitreje odziva na izbolj\u0161ave zdravja tal (glej okvir spodaj).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tla, pokrita s trajno vegetacijo, postanejo bogata s humusom, \u017eiva in nemotena.<\/h2>\n\n\n\n<p>Humus ni \u010darobna, kemi\u010dno stabilna snov, ampak skupni produkt \u017eivih organizmov v tleh in njihove fizi\u010dne strukture. Mikrobna aktivnost in fizi\u010dna za\u0161\u010dita sta nujni za nastanek trajnih organskih snovi. To spoznanje odpira novo pot v upravljanju tal: namesto da posku\u0161amo \u201eustvariti humus\u201d z zunanjimi vlo\u017eki, moramo ohraniti \u017eivljenje tal, za\u0161\u010dititi njihovo nemoteno strukturo in zagotoviti kontinuiteto koreninskega sistema. Konec koncev je \u017eiva vegetacija sposobna proizvajati organsko snov, ki hrani \u017eivljenje v tleh, kar na koncu proizvede znaten dele\u017e trajnega humusa.<\/p>\n\n\n\n<p>Sledimo tem na\u010delom, ne le ohranjamo vsebnost organskih snovi v tleh, ampak tudi dolgoro\u010dno izbolj\u0161ujemo hranilno vrednost na\u0161e hrane in prispevamo k bla\u017eenju podnebnih sprememb.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"750\" height=\"500\" src=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21.png\" alt=\"\" class=\"wp-image-11006\" srcset=\"https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21.png 750w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21-300x200.png 300w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21-18x12.png 18w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21-450x300.png 450w, https:\/\/tmg.hu\/wp-content\/uploads\/2025\/12\/image-21-600x400.png 600w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><em>Presnovni produkti mikroorganizmov, celi\u010dne stene mrtvih organizmov in produkti razgradnje se dolgoro\u010dno vklju\u010dijo v talno matriko.<\/em><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Aktivno oglje \u2013 \u201ehitro razpolo\u017eljiva\u201d organska snov v tleh<\/strong><\/p>\n\n\n\n<p>Aktivno oglje, znano tudi kot permanganatno oksidabilno oglje (POXC), se nana\u0161a na lahko dostopno, mikrobiolo\u0161ko aktivno oglje v tleh, ki se hitro odziva na ukrepe za upravljanje tal. Ta pojem so leta 2003 uvedli Ray R. Weil in sodelavci, ki so predlagali preprosto in ob\u010dutljivo laboratorijsko in terensko metodo za odkrivanje aktivnega ogljika.<\/p>\n\n\n\n<p>Bistvo merjenja je, da se vzorec tal za kratek \u010das (pribli\u017eno 2 minuti) obdela z blagim bikromatom ali permanganatom, nato pa se z spektrofotometrom izmeri zmanj\u0161anje intenzivnosti barve permanganata. Ta postopek reagira samo z najla\u017eje oksidabilnimi, labilnimi oblikami ogljika, vklju\u010dno s sve\u017eimi rastlinskimi ostanki, izlo\u010dki korenin in mikrobnimi metaboliti, ki so neposredni viri energije in hranil za mikrobno skupnost v tleh.<\/p>\n\n\n\n<p>Aktivno oglje je torej \u201ehitra valuta\u201d tal: njegova koli\u010dina hitro odra\u017ea vpliv kmetijskih praks, kot so obdelava tal, pokrivne kulture ali dopolnjevanje organskih snovi. Bolje korelira z mikrobno aktivnostjo, dihanjem tal in stabilnostjo agregatov kot skupna vsebnost organskih snovi, kar ga naredi idealni indikator za dnevno spremljanje zdravja tal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sklici<\/h2>\n\n\n\n<p><em>Lehmann, J., &amp; Kleber, M. (2015). Sporna narava organske snovi v tleh. Nature, 528, 60\u201368.<\/em><\/p>\n\n\n\n<p><em>Dungait, J. A. J., Hopkins, D. W., Gregory, A. S., &amp; Whitmore, A. P. (2012). Obnova organske snovi v tleh je odvisna od dostopnosti, ne od odpornosti. Global Change Biology, 18(6), 1781\u20131796.<\/em><\/p>\n\n\n\n<p><em>Montgomery, D. R., &amp; Bikl\u00e9, A. (2016). Skrita polovica narave: mikrobiolo\u0161ke korenine \u017eivljenja in zdravja. W. W. Norton &amp; Company.<\/em><\/p>\n\n\n\n<p><em>Weil, R. R., Islam, K. R., Stine, M. A., Gruver, J. B., &amp; Samson-Liebig, S. E. (2003). Ocena aktivnega oglja za oceno kakovosti tal: poenostavljena metoda za laboratorijsko in terensko uporabo. American Journal of Alternative Agriculture, 18(1), 3\u201317.&nbsp;<\/em><a href=\"https:\/\/doi.org\/10.1079\/AJAA200228\"><em>https:\/\/doi.org\/10.1079\/AJAA200228<\/em><\/a><em><\/em><\/p>\n\n\n\n<p><em>Miltner, A., Bombach, P., Schmidt-Br\u00fccken, B., &amp; K\u00e4stner, M. (2012). Nastanek SOM: mikrobna biomasa kot pomemben vir. Biogeokemija, 111(1\u20133), 41\u201355.&nbsp;<\/em><a href=\"https:\/\/doi.org\/10.1007\/s1053301297624\"><em>https:\/\/doi.org\/10.1007\/s10533-012-9762-4<\/em><\/a><em><\/em><\/p>\n\n\n\n<p><em>Dohnalkova, A. C., Tfaily, M. M., Smith, A. P., Chu, R. K., Crump, A. R., Brislawn, C. J., Varga, T., Shi, Z., Thomashow, L. S., Harsh, J. B., &amp; Keller, C. K. (2017).<\/em><\/p>\n\n\n\n<p><em>Molekularni in mikroskopski vpogled v nastajanje organske snovi v tleh v rizosferi rde\u010de borovnice. Tla, 1(1), 4.&nbsp;<\/em><a href=\"https:\/\/doi.org\/10.3390\/soils1010004\"><em>https:\/\/doi.org\/10.3390\/soils1010004<\/em><\/a><em><\/em><\/p>\n\n\n\n<p><em>Weil, R. R., Islam, K. R., Stine, M. A., Gruver, J. B., &amp; Samson-Liebig, S. E. (2003). Ocena aktivnega oglja za oceno kakovosti tal: poenostavljena metoda za laboratorijsko in terensko uporabo. Soil Science Society of America Journal, 67(3), 968\u2013979.&nbsp;<\/em><a href=\"https:\/\/doi.org\/10.2136\/sssaj2003.9680ResearchGate\"><em>https:\/\/doi.org\/10.2136\/sssaj2003.9680ResearchGate<\/em><\/a><em><\/em><\/p>\n\n\n\n<p>AVTOR: V\u00cdG VIT\u00c1LIA \u2022 EKOLOGINJA ZA TLA, VODJA IZOBRA\u017dEVALNEGA PROGRAMA ZDRU\u017dENJA KMETOV ZA OBNOVO TLA, USTANOVITELJICA TERRAVITKA<br><em>Fotografije: shutterstock.com<\/em><\/p>\n<\/blockquote>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>A talajt sok\u00e1ig egyfajta \u201efekete doboznak\u201d tekintett\u00e9k, ahol a n\u00f6v\u00e9nyi maradv\u00e1nyok a biol\u00f3giai leboml\u00e1s mellett valamilyen rejt\u00e9lyes k\u00e9miai \u00e1talakul\u00e1son mennek kereszt\u00fcl, \u00e9s ebb\u0151l sz\u00fcletik a humusz, a talaj egyik legfontosabb, szinte var\u00e1zslatosnak tekintett alkot\u00f3eleme. A nehezen bonthat\u00f3 szerves anyagok k\u00e9miai szint\u00e9zis\u00e9n alapul\u00f3 klasszikus humuszelm\u00e9let hat\u00e1rozta meg a talajtan gondolkod\u00e1sm\u00f3dj\u00e1t az elm\u00falt k\u00e9t \u00e9vsz\u00e1zadban. Az ut\u00f3bbi [&hellip;]<\/p>","protected":false},"author":141,"featured_media":11002,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[45],"class_list":["post-11001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-talaj","tag-cikk"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A humusz m\u00edtosza \u00e9s a talaj szerves anyag\u00e1nak \u00faj \u00e9rtelmez\u00e9se - Talajmeg\u00faj\u00edt\u00f3 Gazd\u00e1k Egyes\u00fclete<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tmg.hu\/sl\/mit-o-humusu-in-nova-interpretacija-organske-snovi-v-tleh\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A humusz m\u00edtosza \u00e9s a talaj szerves anyag\u00e1nak \u00faj \u00e9rtelmez\u00e9se - Talajmeg\u00faj\u00edt\u00f3 Gazd\u00e1k Egyes\u00fclete\" \/>\n<meta property=\"og:description\" content=\"A talajt sok\u00e1ig egyfajta \u201efekete doboznak\u201d tekintett\u00e9k, ahol a n\u00f6v\u00e9nyi maradv\u00e1nyok a biol\u00f3giai leboml\u00e1s mellett valamilyen rejt\u00e9lyes k\u00e9miai \u00e1talakul\u00e1son mennek kereszt\u00fcl, \u00e9s ebb\u0151l sz\u00fcletik a humusz, a talaj egyik legfontosabb, szinte var\u00e1zslatosnak tekintett alkot\u00f3eleme. 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