Study of leaf surface area, content of photosynthetic pigments in leaves and yield of Pechorsky potato variety under different doses of mineral fertilizers
https://doi.org/10.32634/0869-8155-2026-405-04-86-93
Abstract
Relevance. The objective of the study was to determine the effect of different rates of mineral fertilizers on tuber yield and to conduct a qualitative analysis of the leaves for their essential photosynthetic pigment content.
Methods. The study was conducted from 2023 to 2025 in breeding nurseries.The objects of study were the Pechorsky potato variety and a field experiment presented in five variants in fourfold replication: without the use of mineral fertilizers, with half, full, one and a half and double doses of applied complex granular mineral fertilizers (nitroammophoska) as top dressing (30 g/m2) with a ratio of 16:16:16% of the active substance.
Results. The research demonstrated the highly responsive nature of the Pechorsky potato variety to various doses of mineral fertilizers, enabling yields of up to 25.6–35.7 t/ha in experimental settings, with high-quality tuber characteristics (dry matter, starch), exceeding those of the unfertilized variety. A tendency toward increased foliar growth was noted with higher fertilizer doses, which affects the assimilation process and, consequently, may impact yield. The economic analysis recommends the use of a complete mineral fertilizer system with a 1.5 NPK and 2.0 NPK schedule, ensuring highly profitable production in the agroclimatic conditions of the Komi Republic.
Keywords
potato (Solanum tuberosum L.),
variety,
yield,
leaf area,
photosynthetic pigments,
mineral fertilizers
Supporting agencies: The research was conducted under state assignment No. FUUU-2026-0010 (registration No. 1023032700219-2-4.1.6) with the financial support of the Ministry of Science and Higher Education of the Russian Federation
About the Authors
A. G. Tulinov
A.V. Zhuravsky Institute of Agro-Biotechnologies of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Aleksei Gennad’evich Tulinov, Candidate of Agricultural Sciences, Researcher
27 Rucheinaya st., Syktyvkar, Komi Republic,167023
M. P. Koroleva
A.V. Zhuravsky Institute of Agro-Biotechnologies of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
Maria Petrovna Koroleva, Junior Researcher
27 Rucheinaya st., Syktyvkar, Komi Republic,167023
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For citations:
Tulinov A.G., Koroleva M.P. Study of leaf surface area, content of photosynthetic pigments in leaves and yield of Pechorsky potato variety under different doses of mineral fertilizers. Agrarian science. 2026;(4):86-93. (In Russ.) https://doi.org/10.32634/0869-8155-2026-405-04-86-93
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