20.500.12556/DKUM-72110 Vpliv načina oskrbe tal na pojav plevelov in pridelek cvetače Effects of soil management methods on weed population and yield of cauliflower V zelenjadarstvu so pleveli eden od glavnih vzrokov znižanja pridelka. Zaradi želje po hrani z manj ostanki herbicidov in za potrebe ekološke pridelave se iščejo nove tehnike učinkovitega nekemičnega obvladovanja plevelov. V okviru mednarodnega projekta SoilVeg programa Core Organic smo leta 2016 na Univerzitetnem kmetijskem centru Pohorski dvor izvedli poljski pokus. Raziskovali smo vpliv dveh vmesnih posevkov (ječmen, inkarnatka), obdelanih na dva načina (valjanje z valjarjem rastlinske odeje 'roller crimperjem', podoravanje), na število, velikost in biomaso plevelov ter pridelek cvetače. Za kontrolo smo imeli parcele brez zastirke in brez vmesnega posevka (ki smo jih okopavali) ter parcele, prekrite s črno tkanino. Število plevelov smo vrednotili trikrat med rastno dobo in dvakrat pred spravilom, biomaso in prekritost parcel pa pred spravilom pridelka. Med rastno dobo smo po vsakem vrednotenju kontrolne in podorane parcele okopali. Število plevelov je bilo na parcelah z vmesnim posevkom za 31–39 % manjše kot v kontroli. Na povaljanih parcelah je bilo število plevelov za 55–62 % manjše od števila ugotovljenega na podoranih in kontrolnih parcelah. Biomasa in velikost plevelov je bila znatno večja (+ 65,7 %) na povaljanih parcelah. Na povaljanih parcelah je bilo manj plevelov, ki pa so bili bujnejši od plevelov na drugih parcelah. Hlevski gnoj ni imel vpliva na pokritost in biomaso plevelov. Pridelek cvetače se na kontrolnih in oranih parcelah ni statistično značilno razlikoval, na povaljanih parcelah je bil do 60 % nižji. Vrsta pokrivne rastline na pridelek ni imela vpliva. Weeds are one of the main causes for loss of yield in vegetable production. New effective techniques of non-chemical weed control are needed to reduce pesticide residue in food and to help organic farmers. In cooperation with the CoreOrganics international project SoilVeg, we carried out a field trial in 2016. The trial took place at the University of Agriculture centre Pohorski dvor. We compared the effects of two cover crops (crimson clover, barley), terminated with two techniques (ploughing, rolling with 'roller crimper') on the population, size and biomass of weeds and yield of cauliflower. For the control plots, we used plots with no cover crop and no mulch (that we hoed), and plots with black synthetic fabric mulch. The number of weeds was measured three times during plant growth and twice before harvest, and the biomass and coverage were measured before harvest. During the plant growth, we hoed ploughed and controled the plots after every measurement. The percentage of weeds on the plots with cover crops was 31–39% lower than on the control plots. The percentage of weeds on the rolled plots was 55–62% lower than on other plots. Coverage and biomass of weeds was highest on rolled plots (+ 65.7 %). There was less weeds on rolled plots, but they were significantly larger than the weeds on the other plots. Manure had no correlation with weed biomass and coverage. The final yield of cauliflower was not significantly different in ploughed and control plots. The yield on the rolled plots was up to 60% lower. Species of cover crop did not have an effect on the yield. plevel zastirka rastlina za agroekološke storitve tehnika obdelave roller crimper weed mulch agroecological service crop soil management roller crimper true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2018-09-11 10:20:48 2018-09-18 10:09:34 2022-08-01 21:58:48 2019-07-11 19:06:29 2018 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:62GRYENI VS_Sofranac_Matic_2018.pdf VS_Sofranac_Matic_2018.pdf 1 5439DCE38BEC695E7FBBE352E11387C9 7fff633440325df244603fb1dfff2708d40c8bd161813ab3c0b624311548aa48 4b08f0e7-7c10-11eb-bb7a-00155d0001ca 20.500.12556/dkum/5b57c436-c586-4e0a-afd2-3abed25d182a https://dk.um.si/Dokument.php?lang=slv&id=129171 Fakulteta za kmetijstvo in biosistemske vede 0 0 0