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Abstract
An important strategy fo r diversifying agricultural production is the use o f
vermicomposting and the production o f new products from vermicompostfor their further
widespread use. Objective. To investigate the effectiveness o f the use o f vermicompost
and the biological product ‘Nanoverm’ obtained from it as a high-quality complex
environmentally friendly organic fertiliser for application to grain crops. Methods.
The research was conducted at LIGA COLAP LLC, the Department o f General and
Applied Ecology and Zoology o f Zaporizhzhia National University (Zaporizhzhia) and
farm s o f the Vilnyansky and Orikhivsky districts o f Zaporizhzhia region in two stages.
A t the first stage, the effect o f vermicompost at a dose o f 1.0-1.5 l/t and Nanoverm at a
dose o f 1.0-1.5 l/t on the first stages o f winter wheat ontogeny o f Podolyanka variety was
studied. At the second stage, the effect o f the biological product ‘Nanoverm’ on the
formation o f biometric growth parameters and yield o f winter wheat was studied.
Plants o f the control group were grown without fertilizers, and the experimental group
was treated with Nanoverm biofertilizer at a dose o f 1.5 l/t. Results. It was found that
pre-sowing treatment o f winter wheat seeds with vermicompost provided an increase in
seed germination energy by 3.7-4.0 % compared to the control, and laboratory
germination by 5.3 %. When seeds were treated with Nanoverm biological product at a
dose o f 1 l/t, germination energy increased by 4.7 %, and laboratory germination
increased by 6.0 %. With an increase in the dose o f the preparation to 1.5 l/t, these
indicators increased by 5.0 and 7.3 %, respectively. Pre-sowing treatment o f seeds with
the studied preparations also had a positive effect on such indicators as the length o f the
coleoptile and roots o f winter wheat seedlings. The analysis o f biometric parameters o f
winter wheat growth and yield after harvesting showed that in the experimental variant,
such indicators as grain weight, number o f grains per ear and yield were significantly
higher. With almost the same plant height and a slight increase in the length o f the ear,
the stimulating effect o f feeding winter wheat in the earing phase with Nanoverm was
expressed in an increase in the number o f grains per ear by 15.3 %, and the weight o f
grain per ear by 22.2 % (p<0.001). As a result, the grain yield in the experimental group
was 8.3 c/ha higher than in the control group (p<0.001). Conclusions. It was found that
pre-sowing treatment o f seeds with vermigum or biological product ‘Nanoverm ’
improves all the indicators that characterise the first stages o f ontogeny o f winter wheat
variety Podolyanka. Fertilising winter wheat in the earing phase with Nanoverm at a
dose o f 1.5 l/ha led to the activation ofgrowth processes and contributed to the formation
o f higher productivity. As a result o f a significant increase in the number and weight o f
grains in the ear, the yield increased by 22.3 % and amounted to 47.2 c/ha
Key words: california worms, vermicompost, Nanoverm, winter wheat, Podolianka,
growth, yield.
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