1. Effective microorganisms technology applied to sewage sludge and tested in short exposure on Lepidium sativumTanja Buh, Leja Goljat, Darian Rampih, Petra Makorič, Sara Pignattelli, 2024, original scientific article Abstract: Sewage sludge has fertilizer properties and can supply a large amount of necessary nutrients to the crops, because it is full of
organic matter, carbon, nitrogen and other nutrients, but on the other hand, it also contains a lot of toxic compounds, derived
from its origin, such as heavy metals, antibiotics and microplastics. Effective microorganisms are a collection of naturally
occurring beneficial microorganisms that are able to coexist and are commonly used in agriculture and gardening to improve
plant performance and production. In this study, increasing concentrations of sewage sludge alone and added with effective
microorganisms were evaluated in a short exposure on Lepidium sativum L. Parameters that were evaluated are: (i) percentage
inhibition of germination, (ii) root length, (iii) biomass, (iv) soil pH, (v) total organic carbon and nitrogen both at soil and
at root level. Results carried out from our experiment highlighted that effective microorganisms when coupled with sludge
are able to restore biometric parameters by resetting seeds germinability inhibition and improving root elongation more than
50% when compared with plants added only with sludge, restoring the values almost of those to the control plants, as well
as for soil pH values. Total organic carbon and total nitrogen are boosted at soil level almost at 50% when compared with
the same concentrations added only with sludge, while at root level they appear decreased only in plants directly added with
sludge treated with effective microorganisms
Keywords: sewage sludge, effective microorganism, total organic carbon, total nitrogen, germinability, short plants exposure, acute toxicity, biomass, pH
Published in RUNG: 12.04.2024; Views: 183; Downloads: 0
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4. X-ray spectrometry in plant biologyKatarina Vogel-Mikuš, Iztok Arčon, Alojz Kodre, Anja Kavčič, Peter Kump, Primož Pelicon, 2018, published scientific conference contribution abstract (invited lecture) Abstract: Trace elements are essential components of living systems, but at the same time they can be toxic at concentrations beyond those necessary for their biological functions. In addition, the toxicity can be extended to other non-essential elements of very similar atomic characteristics that can mimic the properties of a trace element.
Trace element malnutrition affects more than half of the world’s population, while on the other hand industrialization, traffic and extensive use of fertilizers have resulted in exceedingly high concentrations of non-essential elements in food crops, posing risks to human health.
In order to be able to develop and improve phyto-technologies that enable production of safe and quality food, knowledge on the basic mechanisms involved in trace and non-essential element uptake, transport, accumulation and ligand environment in plants is needed.
Such studies are nowadays supported by highly sophisticated X-ray based techniques, such as synchrotron based X-ray fluorescence spectrometry, proton induced X-ray emission and X-ray absorption spectroscopy, enabling imaging of element distribution and determination of speciation and ligand environment of trace elements in biological tissues and cells with high spatial resolution and sensitivity.
Selected case studies of metal distribution and speciation in selected model and crop plants, achieved by interdisciplinary work, will be presented.
Keywords: X-ray spectrometry, plants, XANES, EXAFS
Published in RUNG: 12.09.2018; Views: 3487; Downloads: 0
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5. Čuvari (Keepers)Peter Purg, 2017, artistic performance Abstract: The pavement reconstructions in the Belgrade University of the Arts area at Kosančičev venac had been going on for months, and heaps of cobblestone. Sand just kept being moved from one side of the rubble-filled street to the other. Suddenly one afternoon, on the 30th of March 2017, a little bed of dry (stonewall) plants appeared on the top of the biggest sand heap. They remained there for a whole month, somebody must have been caring for them... Soon after they suddenly disappeared, another big bright flower took their place immediately -- but on the very same day (April 28th), that flower disappeared, too.
The documentary photos were taken (in the order of gallery appearance) every couple of days throughout April 2017 -- special thanks to (photo by) Rastko Čirić and Danica Bojić
Keywords: analog, belgrade, Beograd, drywall, installation, intervention, plants, site-specific
Published in RUNG: 13.06.2017; Views: 4037; Downloads: 0 |
