20.500.12556/DKUM-74218 Vpliv pridelovalnih sistemov na mikriobiološko sestavo tal Production system effects on microbial soil composition Na trajnostnem poskusu smo preučevali vpliv štirih različnih pridelovalnih sistemov (ekološki, konvencionalni, integrirani, biodinamični) in kontrole na mikrobiološko sestavo tal. Poskus je bil zastavljen na raziskovalnem polju UKC Pohorski dvor, kjer smo v rastni sezoni 2018 tla vzorčili dvakrat (julija in septembra) do globine 10 cm, v štirih ponovitvah. V talnih vzorcih smo najprej izmerili osnovne parametre kakovosti tal: reakcijo (pH) tal, vsebnost rastlinam dostopnega fosforja, kalija ter organske snovi, talno vlago in nadalje kvantitativno določili tri osnovne skupine talnih mikroorganizmov (glive, bakterije, aktinomicete). Za določanje posameznih skupin mikroorganizmov smo talne vzorce ustrezno razredčili in nanesli na predhodno pripravljena selektivna gojišča. Po inkubaciji vzorcev smo prešteli število kolonij, ki smo jih ob upoštevanju razredčitve vzorca preračunali v CFU enote (CFU/ml oz. CFU/g) in rezultate statistično obdelali. Število gliv je bilo največje pri konvencionalnem načinu obdelave in najmanjše pri kontroli. Število aktinomicet je bilo največje pri ekološkem načinu obdelave in najmanjše pri kontroli. Število skupnih bakterij je bilo največje pri integriranem načinu obdelave in najmanjše pri biodinamičnem načinu obdelave. Število gliv je bilo višje v začetku rastne sezone (julij), medtem ko smo višje število aktinomicet in skupnih bakterij izmerili septembra. The influence of four different crop systems (ecological, conventional, integrated, biodynamic) and control on the microbiological composition of the soil was being examined. The experiment was set up at the UKC Pohorski Dvor Research Field, where, during the 2018 growing season, we sampled the soil twice (July and September) to a depth of 10 cm in four replicates. The basic soil quality parameters were first measured in soil samples: soil reaction (pH), phosphorus, potassium and organic matter content, soil moisture and further three quantitative groups of soil microorganisms (fungi, bacteria, actinomycetes) were quantified. For the determination of individual groups of microorganisms, soil samples were appropriately diluted and applied to previously prepared selective media. After incubation of the samples, the number of colonies was counted and converted into CFU units (CFU/ml or CFU/g), and statistically processed, taking into account the dilution of the sample. The number of fungi was the highest in conventional tillage and the lowest in the control tillage. The number of actinomycetes was the highest in the organic treatment method and the lowest in control. The total bacterial count was the highest in the integrated treatment and the lowest in the biodynamic treatment. The number of fungi was higher at the beginning of the growing season (July), while the higher number of actinomycetes and total bacteria was measured in September. Mikroorganizmi tla pridelovalni sistem glive bakterije Microorganisms soil production system fungi bacteria true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2019-08-19 14:17:19 2019-09-02 13:36:17 2022-08-09 08:27:29 2019-09-04 03:13:24 2019 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:MMEXFJUF VS_Zupanic_Spela_2019.pdf VS_Zupanic_Spela_2019.pdf 1 F8E3EC480D20C773732A826729A02247 c273a38ada70b822a0d21e461adf015e42abc737e6af2b9a700d93302963714c d3566118-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/9160001d-8921-4819-beee-216c518b8562 https://dk.um.si/Dokument.php?lang=slv&id=135970 Fakulteta za kmetijstvo in biosistemske vede 0 0 0