UDC 633.491 + 631.86 + 631.81
DOI 10.36461/NP.2024.72.4.021

APPLICATION OF GRANULAR FERTILIZERS BASED ON TURKEY MANURE IN POTATO CULTIVATION
N.P. Chekaev, Candidate of Agricultural Sciences, Associate Professor;
A.A. Galiullin, Candidate of Agricultural Sciences, Associate Professor
Federal State Educational Institution of Higher Education "Penza State Agrarian University",
Russia, tel. 8(8412) 62-83-67, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

The article presents the results of field studies on the effect and aftereffect of granular fertilizers from turkey manure on the agrochemical properties of leached chernozem and the yield of potato tubers, carried out in 2022-2023 in the separate subdivision "Educational and Experimental Farm "Ramzay" of Penza SAU" (Penza region, Mokshansky district). Granular fertilizer from turkey manure, produced at OOO “Bioorganika” (Penza region, Nizhnelomovsky district), is a complex organic fertilizer with a high content of nutrients and is characterized by the content of nitrogen 3.9 %, phosphorus 3.3 %, potassium 4.2%, organic matter (carbon) 41.0 %, pHsalt – 6.7 units. The annual application of granular fertilizers from turkey manure to potatoes in doses of 1 to 3 t/ha leads to a gradual decrease in soil acidity by 0.06-0.15 pH units per year, an increase in alkaline-hydrolyzable nitrogen by 0.5-3.4 mg/kg and mobile phosphorus in the soil by 8.3-20.6 mg/kg. A single application of granular fertilizers from turkey manure in doses of 1 to 3 t/ha leads to an increase in the total yield of potato tubers by 17.4-76.2 % and a repeated application the following year by 45.4-90.9 %. An increase in the yield of marketable tubers was observed. Subsequently, the tuber yield increased by 18.2-45.4 %, indicating a long-lasting effect of the organic fertilizers from manure.
Keywords: granular fertilizer from turkey manure, nitrogen, phosphorus, potassium, soil acidity, potato, yield.

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