Connectivity of change in yield of grain and leguminous crops and level of application of fertilisers by district of the Republic of Belarus

DOI: https://doi.org/10.33581/2521-6740-2022-1-15-27

Abstract

The article discusses territorial and structural changes in the productivity of grain and leguminous crops in the districts of the Republic of Belarus, as well as differences in the doses of mineral fertilisers for certain types from 2014 to 2018. The aim of the study is to determine the degree of influence of fertilisers on the dynamics of productivity for the studied period and to analyse the reasons for changes in the level of yields of grain and leguminous crops in the regions of the country. The work is based on statistical research methods – correlation and regression analysis of the relationship between mineral fertilisers and productivity were carried out. Correlation analysis showed a significant inverse linear dependence of the yield dynamics on the fertility score (correlation coefficient – 0.66), proving that more fertile soils lose in harvests of grain and leguminous crops are almost 2 times in comparison with less suitable land. Regression analysis confirmed the significant effect of mineral fertilisers (determination coefficient 56 %) on the final harvests of grain and leguminous crops. The novelty of the research lies in the mathematical formalisation of the stochastic dependence of the yield of grain and leguminous crops on the level of application of certain types of mineral fertilisers and the establishment of its linear character. With the help of GIS technologies, territorial differences in the effectiveness of the use of fertilisers for grain and leguminous crops in the administrative regions of the Republic of Belarus were established and three clusters of productivity in the country were identified – highly productive south-west (Grodno Region, Brest Region and adjacent districts of Minsk Region), productive south-east (Gomel Region and Mogilev Region with border areas of neighbouring regions) and low-productive north (Vitebsk Region with northern regions of Minsk Region and Grodno Region).

Author Biographies

Nikolay V. Klebanovich, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

doctor of science (agricultural sciences), full professor; professor at the department of soil science and land information systems, faculty of geography and geoinformatics

Arkady L. Kindeev, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

junior researcher at the laboratory of landscape ecology, faculty of geography and geoinformatics

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Published
2022-05-26
Keywords: productivity, fertiliser application, grain crops, leguminous crops, Republic of Belarus, soil fertility, correlation analysis, regression analysis
How to Cite
Klebanovich, N. V., & Kindeev, A. L. (2022). Connectivity of change in yield of grain and leguminous crops and level of application of fertilisers by district of the Republic of Belarus. Journal of the Belarusian State University. Geography and Geology, 1, 15-27. https://doi.org/10.33581/2521-6740-2022-1-15-27
Issue
No 1 (2022): Journal of the Belarusian State University. Geography and Geology
Section
Geography

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