Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 24 ISSUE 2
Written by Katerina CHURKOVA, Boryana CHURKOVA

The impact of organic fertilizers, such as Blago 5 at doses of 300 and 600 ml/da and Fertileader Axis at doses of 500 and ,000 ml/da were tested on a bird's foot trefoil grassland (Lotus corniculatus L.) in the experimental field of the Research Institute of Mountain Stockbreeding and Agriculture of Troyan (RIMSA) from 2020 to 2023. To analyze the main economic indicators based on dry matter yield, graphical and tabular methods, comparative methods were used; method of analysis and synthesis; descriptive statistical analysis and correlation analysis. The high productivity of the grassland treated with the Blago 5 at doses of 600 ml/da determined the lowest cost price and the highest profitability rate of this organic fertilizer. A strong correlation dependence of yield with gross revenue and gross profit (r= .000) was established, and the high correlation coefficient between gross profit and profitability (0.994) proves the good interdependence between these two indicators. The established results show that Blago 5 applied at a dose of 600 ml/da is a suitable for practical use for the production of bird's foot trefoil forage.

[Read full article] [Citation]