20.500.12556/DKUM-80674 Anaerobna razgradnja hmeljevine glede na različne dodatke - potek temperaturne krivulje ter primerjava vsebnosti rastlinskih hranil pred in po procesu razgradnje diplomsko delo Anaerobic hop decomposition - temperature curve course and nutritional value comparison before and after the procedure according to different additives Hmeljevina (trta in listi hmelja), ki ostane po spravilu pridelka hmelja, predstavlja dragocen vir organske mase in hranil za vračanje na kmetijske površine. Na Inštitutu za hmeljarstvo in pivovarstvo Slovenije smo v okviru evropskega projekta LIFE BioTHOP, s katerim vpeljujejo v slovenska hmeljišča biokrožno gospodarstvo, na kmetijah Jelen in Gajšek, po obiranju hmelja v letu 2019 postavili poskus, s katerim smo preučevali proces anaerobne razgrajevanje hmeljevine, prepletene z vrvico iz polimlečne kisline (PLA), z različnima dodatkoma (piščančji gnoj in pripravek iz alg in bentonita) v primerjavi s kontrolo (brez dodatka). V kupih smo spremljali temperaturo v času procesa razgradnje pod črno folijo ter primerjali C/N razmerje in vsebnost hranil na začetku in na koncu procesa po petih mesecih. Temperaturni prag za razgradnjo PLA vrvice in za higienizacijo je bil dosežen v kupu z dodatkom pripravka iz alg in bentonita in v kupu z dodatkom piščančjega gnoja. Kupa hmeljevine, kjer smo dodali piščančji gnoj ali pripravek iz alg in bentonita, sta imela ožje C/N razmerje ob koncu razgradnje v primerjavi s kontrolo. V kupu z dodatkom piščančjega gnoja se je nakazala višja vsebnost fosforja ob koncu razgradnje v primerjavi s kontrolnim kupom in kupom z dodanim pripravkom iz alg in bentonita. Vsebnost kalija se je z anaerobno razgradnjo občutno povišala v vseh kupih. Po kakovostnem razredu in vsebnosti težkih kovin bi bil za gnojenje najprimernejši kup z dodatkom Glenorja. PLA vrvica se je v vseh obravnavanjih z anaerobnim procesom po petih mesecih dobro razgradila. Hop biomass after harvest (leaves and vines) is a valuable source of organic matter and nutrients for returning to agricultural land. At the Slovenian Institute of Hop Research and Brewing, as part of the European LIFE BioTHOP project, which introduces a circular economy into hop growing, we set up an experiment at Jelen and Gajšek Farms. It was conducted after hop harvest in 2019 to study the process of anaerobic decomposition of hop biomass after harvest, intertwined with PLA twine, with different additives (chicken manure and algae and bentonite preparation) in comparison to control (without additives). We monitored the temperature during the degradation process under black foil and compared the C/N ratio and nutrient content at the beginning and at the end of the process after 5 months. The temperature threshold for biodegradable PLA twine degradation was reached in the treatment with added algae and bentonite and in the treatment with added chicken manure. Additions of chicken manure and algae and bentonite preparation in heaps indicated a narrower C/N ratio at the end of composting compared to control. In the heap with the addition of chicken manure, a higher phosphorus content was indicated at the end of decomposition, compared to the control pile and the pile with added preparation of algae and bentonite. Potassium content increased significantly in all heaps with decomposition. PLA hop twines degraded in 5 months within anaerobic process very good in all treatments. hmelj hmeljevina anaerobna razgradnja temperatura temperaturna krivulja biomasa hops hop biomass anaerobic decomposition temperature temperature curve biomass true true false [P. Halužan] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2021-09-28 11:06:27 2021-10-13 10:12:18 2022-08-09 23:47:28 0000-00-00 00:00:00 2021 0 Maribor 0 Maribor XI, 46 f., [1] f. pril. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 633.791:631.81.036:577.31(043.2)=163.6 80289027 VS_Haluzan_Patricija_2021.pdf VS_Haluzan_Patricija_2021.pdf 1 BB0F4D47023272AA454881967752DB51 eb242106406e5177218c00fdd2c0cfb42af0cf57d57a01e4e2b6d67d46fb9501 3f225bd9-2354-11ec-bceb-00155d000105 20.500.12556/dkum/cbe93ab9-9a4f-41b3-9872-f7afc46ec487 https://dk.um.si/Dokument.php?lang=slv&id=154762 Fakulteta za kmetijstvo in biosistemske vede 0 0 0