Abstract
We studied the effect of the Gumi-Omi-Phosphorus organic fertilizer and the superphosphate mineral fertilizer on the biomass of roots and the formation of arbuscular mycorrhiza. The mass of roots was shown to increase in all studied plants in case of using fertilizers (Pisum sativum L., Avena sativa L., Triticum aestivum L.). The intensity of colonization decreased when superphosphate was introduced into the soil, and the effect of Gumi-Omi-phosphorus increased the intensity in comparison with the control plants growing on unsuitable soil. It was concluded that the intensity of mycorrhization fell under the influence of superphosphate, probably due to the presence of readily available phosphorus in greater quantities in the soil. However, the Gumi-Omi-Phosphorus drug could induce the growth of hyphae of mycorrhizal fungi in the soil and stimulate both partners to form arbuscular mycorrhizal symbiosis.
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