Correlation-regression analysis of the relationship between alfalfa yield and the level of mineral nutrition under irrigation conditions
https://doi.org/10.32786/2071-9485-2024-03-06
Abstract
Introduction. The relevance of the research is determined by the need to expand the areas of irrigated field forage production in the arid zone in combination with an increase in the yield of forage crops. The main reserve for increasing yield is directly related to the level of mineral nutrition of plants. Correlation and regression analysis allows us to assess the dependence of yield on the amount of fertilizer applied. The article presents this analysis using the example of the dependence of the yield of alfalfa cultivated under irrigation on the dose of mineral fertilizers. The results obtained show the existing relationship between the characteristics. Object. The object of the study is alfalfa cultivated under irrigation conditions and its responsiveness to mineral fertilizers. Materials and methods. The study used methods of systemic and complex analysis, as well as methods of correlation and regression analysis. Results and conclusions. The research results showed that with an increase in the dose of mineral fertilizers, an increase in the yield of alfalfa cultivated under irrigation conditions is observed, but only up to a certain point, after which a decline in yield is recorded. This trend is observed in all studied irrigation regimes. The correlation coefficient calculated using the Pearson method indicates a strong (0,87 – irrigation regime for alfalfa 65-70% NV and 0,81 – 70-75% NV) and very strong correlation dependence (0,92 – irrigation regime 75- 80% NV) between the level of mineral nutrition and the yield of the crop under study.
About the Authors
A. A. AitpaevaRussian Federation
Aitpayeva Aigul Aldungarovna, Candidate of Agricultural Sciences, Associate Professor in the specialty “Economics and Management of the National Economy”, Associate Professor of the Department of “Expertise, Operation and Management of Real Estate”, Head of the Department of Research Work and International Relations; Researcher
414056, Astrakhan, Tatishcheva st., 18
N. V. Tyutyuma
Russian Federation
Tyutyuma Natalya Vladimirovna, Doctor of Agricultural Sciences, Corresponding Member of the Russian Academy of Sciences, Director
416251, Astrakhan region, Chernoyarsky district, Solenoe Zaimishche, Severny quarter, 8
G. K. Bulahtina
Russian Federation
Bulakhtina Galina Konstantinovna, Candidate of Agricultural Sciences, Department of Environmental Management, Head of Department
416251, Astrakhan region, Chernoyarsky district, Solenoe Zaimishche, Severny quarter, 8
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Review
For citations:
Aitpaeva A.A., Tyutyuma N.V., Bulahtina G.K. Correlation-regression analysis of the relationship between alfalfa yield and the level of mineral nutrition under irrigation conditions. Title in english. 2024;(3 (75)):52-62. (In Russ.) https://doi.org/10.32786/2071-9485-2024-03-06