Avhustynovych M. Agroecological assessment of the impact of microbiological preparations and humic fertilizers for spring triticale in Western Forest Steppe of Ukraine

The work aims to justify economic and environmental expediency of application of humic fertilizers and Azoter bioagent in agrocenoses of spring triticale. The research argues that agrochemical indicators of gray forest light loamy soils are improved under the influence of humic fertilizer and the microbiological agent. It is proved that their application contributes to highly productive agrophytocenosis and obtaining of high-quality products, improving indicators of the yield structure (plant height, length of spike and number of grains) and increasing grain yield. It also forces rise of the share of grain protein, gluten and major nutrients (nitrogen, phosphorus, potassium), as well as reduces level of nitrates. Analyzing translocation of heavy metals in "soil - plant" system, it is found out that application of humic fertilizers and the bioagent helps reduction of the level of toxic metals in the soil. Basing on the experimental data, we have calculated and argued environmental feasibility as to application of Azoter bioagent and humic fertilizer in agrocenoses of spring triticale. It is proved that from biological and bioenergetics viewpoint, application of the studied fertilizers in cultivation of spring triticale is an effective measure, and conditionally net profit supports application of the bioagent with payback at the level of 1.80 - 2.05 UAH per one spent hryvnia.