Aljaž Medič (Author), Anita Solar (Author), Metka Hudina (Author), Robert Veberič (Author), Tilen Zamljen (Author)

Abstract

The use of compost made from the leaves of Juglans regia has long been controversial because of its inhibitory effect due to the presence of juglone. Therefore, the aim of our study was to replicate the typical habits of farmers and gardeners, where the dried leaves are collected at the end of the season and placed in a composter. Then, the effects of the different treatments on the yield of the plant (lettuce), secondary metabolism, and possible toxicity of the compost of the grown plant were evaluated. The lowest yield of lettuce was obtained in soil with composted walnut and hazelnut leaves, while the highest yield was recorded in in soil with compost control, soil with composted walnut leaves and grass with the addition of composting agent and soil with composted walnut leaves with addition of composting agent. Some allelochemicals were still present in the compost but at such low levels that they did not affect yield. We suggest that dry walnut leaves and cut grass can be used for composting, while dry hazelnut leaves still contain some allelochemicals after two years that significantly inhibit plant growth and thus yield, so we would not recommend their use for composting.

Keywords

rosa;allelopathy;lettuce;naphthoquinones;toxic residues;HPLC;mass spectrometry;LC-M;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL BF - Biotechnical Faculty
UDC: 635
COBISS: 160627203 Link will open in a new window
ISSN: 2304-8158
Views: 17
Downloads: 2
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Other data

Secondary language: Slovenian
Secondary keywords: oreh;leska;odpadno listje;kompost;solata;fenolne spojine;toksične snovi;zaviranje rasti;
Type (COBISS): Article
Pages: 10 str.
Volume: ǂVol. ǂ12
Issue: ǂiss. ǂ14, art. 2738
Chronology: 2023
ID: 19721376