PREDICTION OF SPRING WHEAT YIELD BY AGROCHEMICAL PROPERTIES IN TETYUSHSKIY DISTRICT OF THE REPUBLIC OF TATARSTAN

DOI 10.12737/2073-0462-2023-39-45 УДК 631.45:631.81

Authors

  • Anas Ahtyamovich Lukmanov Center of Agrochemical Service “Tatarskiy”, Kazan, Russia
  • Yuriy Petrovich Perevedentsev Kazan Federal University, Kazan, Russia
  • Aisylu Bilalovna Mustafina
  • Ildar Maratovich Ibatullin Kazan State Agrarian University, Kazan, Russia
  • Daynis Faritovich Zaripov Tatar Institute for Retraining Agribusiness Personnel, Kazan, Russia.

Keywords:

yield, spring wheat, fertilizers, pairwise and multiple correlation, prediction of yield.

Abstract

A half-century sample from 1970 to 2022 consisting of 7 components was considered, in which the yield of spring wheat (Uf) performs the desired function, with the role of the arguments being the content of mobile phosphorus (Р2О5), exchangeable potassium (К2О), the proportion of acidic soils in the plough layer (Дкп), the saturation of the plough layer with mineral (Min.) and organic (Org.) fertilizers, and their sum (NPK) in kg/ha per dry matter within one municipal district. A statistically significant relationship was established between the agrochemical properties (К2О, Дкп) and Uf with correlation coefficients (r) of -0.48 and 0.39 at α = 0.05. Taking into account pairwise correlation, multiple correlation was calculated. For the entire sample (6 factors), r was 0.55, and for 2 factors, 0.53. Based on the parameters of correlation and regression analysis, an equation for predicting the yield of spring wheat based on agrochemical properties has been developed. This equation can be used to increase the effectiveness of fertilizers, prevent soil degradation, optimize land use, and increase profits in agriculture. At the limiting values of the actual yield of spring wheat - 0.86-4.59 t/ha, the calculated yield (Urasch) varies from 1.44 (1990) to 2.77 (2017) t/ha. The absolute difference between the actual and predicted (calculated) yield varies from 0.02 to 1.97 t/ha. The relative deviation in % ranges from 1.03 (1985) to 161.6% (2010) with average values of 25.5%. Deviations of more than 50% occurred in 1981, 1988, 1998, 1999, and 2010, which were due to the influence of extreme drought years, indicating the need to expand the sample by agroclimatic factors.

Information about the authors

Anas Ahtyamovich Lukmanov , Center of Agrochemical Service “Tatarskiy”, Kazan, Russia

Doctor of Agricultural Sciences, Director, e-mail: agrohim_16_1@mail.ru
Center of Agrochemical Service “Tatarskiy”, Kazan, Russia

Yuriy Petrovich Perevedentsev, Kazan Federal University, Kazan, Russia

Doctor of Geographical Sciences, Professor of the Department of Meteorology, Climatol
ogy and Atmospheric Ecology, e-mail: ypereved@kpfu.ru

Aisylu Bilalovna Mustafina

Ph.D. of Geographical Sciences, Senior Lecturer at the Department of Land Management
and Cadastre, e-mail: ayslu_mustafina@mail.ru

Ildar Maratovich Ibatullin , Kazan State Agrarian University, Kazan, Russia

postgraduate student, e-mail: kandidatagrotat@gmail.com
Kazan State Agrarian University, Kazan, Russia

Daynis Faritovich Zaripov , Tatar Institute for Retraining Agribusiness Personnel, Kazan, Russia.

postgraduate student, email: zaripov122@mail.ru

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Published

2026-07-22

How to Cite

Lukmanov А. . А. ., Perevedentsev Ю. . П., Mustafina А. Б., Ibatullin И. М., & Zaripov Д. . Ф. (2026). PREDICTION OF SPRING WHEAT YIELD BY AGROCHEMICAL PROPERTIES IN TETYUSHSKIY DISTRICT OF THE REPUBLIC OF TATARSTAN: DOI 10.12737/2073-0462-2023-39-45 УДК 631.45:631.81 . Vestnik of Kazan State Agrarian University, 18(3). Retrieved from http://vestnik-kazgau.ru/index.php/vestnik/article/view/226

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