20.500.12556/DKUM-86381 VPLIV OBDELAVE TAL NA MIKROBIOLOŠKO AKTIVNOST TAL V NASADU HRUŠKE (Pyrus communis L.) SORTE 'VILJAMOVKA' magistrsko delo The effect of tillage on the microbiological activity of soil in a pear plantation (Pyrus communis L.) variety 'Viljamovka' Sedem let trajajoč poskus je bil izveden v nasadu hrušk sorte 'Viljamovka', cepljenih na podlago kutina MA. V pas rastlin pod drevesi je bila izvedena setev in vzdrževana trajna rastlinska združba z namenom preprečevanja razvoja plevelov. Rastlinske mešanice so bile sestavljene iz nekonkurenčnih trav, manj konkurenčnih zeli in detelj, v poskus pa so bile vključene tudi herbicidane parcele ter kontrolne parcele, kjer se je nemoteno razvijalo avtohtono rastlinje. Poskus je temeljil na popisovanju rastlinstva in preverjanja primernosti posameznih mešanic, tudi z vidika njihovega vpliva na mikrobiološko aktivnost tal. Za določitev mikrobiološke aktivnosti tal je bila uporabljena metoda »Tea-bag indeks« in laboratorijska analiza tal. Rezultati so pokazali veliko heterogenost med vzorci in tudi ponovitvami. Najboljša zasičenost z bazičnimi kationi je vidna pri mešanici detelj in manj konkurenčnih zeli. Vsebnost natrija se pri kontrolnih parcelah, kjer se je razvijalo avtohtono rastlinje, statistično značilno razlikuje, kljub temu pa je vsebnost še vedno dovolj nizka, da ne pride do poškodb dreves v sadovnjaku. Ugotovili smo, da herbicid rahlo zvišuje pH tal, poleg tega pa ne zmanjša mikrobiološke aktivnosti v prsti. A seven-year experiment was carried out in a pear orchard with 'Viljamovka' trees, grafted onto a MA quince rootstock. The sowing was carried out in the plant strips under the trees and a permanent plant community was maintained in order to prevent the development of weeds. The plant mixtures consisted of non-competing grasses, less competitive herbs and clovers. The experiment also included herbicide treated plots, as well as control plots where the native vegetation developed undisturbed. The experiment was based on an inventory of vegetation and suitability check-ups the of individual mixtures. They were also observed in terms of their impact on the microbiological activity of the soil. The "Tea-bag index" method and laboratory soil analysis were used to determine the microbiological activity of the soil. The results showed high heterogeneity between samples as well as replicates. The best saturation with basic cations was seen in the mixture of clover and less competing herbs. The sodium content was statistically significantly different in the control plots, where native vegetation developed. Despite this, the sodium content was still low enough to prevent damage to the trees in the orchard. We found that the herbicide slightly increased the pH of the soil and did not reduce the microbiological activity in the soil. hruška mikrobiološka aktivnost tal semenske mešanice samoohranitev pear microbiological activity seed mixtures self-perservation true true false K. Križan Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-11-22 16:09:45 2024-01-30 09:37:14 2024-01-31 03:28:12 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (X, 48 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 634.13:631.461:631.53.01(043)=163.6 182950403 MAG_Krizan_Karmen_2023.pdf MAG_Krizan_Karmen_2023.pdf 1 241651AB46DE4275E0564FFE17254B2E 6d135d48853a6ca19d69d84cd2b17fa52013ba36a662edec08bec10dfe2c673e 46abfbb0-894c-11ee-ac03-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=174276 Fakulteta za kmetijstvo in biosistemske vede 0 0 0