Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan

Temirzhan Aitbayev; Akbope Aitbayeva; Zhainagul Yertayeva; Evgeny Petrov; Berik Zorzhanov; Bekzat Turegeldiyev; Elmira Yeleuova

doi:10.18393/ejss.1718601

Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan

Abstract

Tomato (Lycopersicon esculentum L.) is a vital horticultural crop in Kazakhstan, especially in the southern and southeastern regions, where yields often fall short of their biological potential. This study evaluated the effects of selected foliar-applied biostimulants and micronutrient formulations on vegetative growth, yield, fruit quality, and economic performance of tomato under the agroecological conditions of Southeastern Kazakhstan. The experimental design included seven treatments: six commercial products—Fitolaza, Nano Sulfur, Scudo, Calcium Humate, CompleMet-Tomato, and BioSok Energy—applied individually or in combination, alongside a non-treated control. All treatments improved vegetative parameters such as plant height, stem diameter, leaf number, and total biomass. The T3 treatment (Fitolaza + Nano Sulfur) consistently delivered superior performance across all growth stages and achieved the highest fruit yield (26.10 t/ha), representing a 31.49% increase over the control. T7 (CompleMet-Tomato) and T5 (Calcium Humate) also demonstrated notable yield improvements. Biochemical analyses revealed that these treatments enhanced dry matter, total sugar, and vitamin C content in fruits, while keeping nitrate levels below the permissible threshold. Economic evaluation identified T3 as the most profitable treatment (USD 1,932.99/ha), followed by T7 and T5, with profitability rates exceeding 140%. These results highlight the potential of foliar biostimulant strategies to enhance both productivity and profitability in tomato cultivation, offering a viable path toward more sustainable and resource-efficient horticultural practices.

Keywords

References

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Details

Primary Language

English

Subjects

Soil Sciences and Plant Nutrition (Other)

Journal Section

Research Article

Authors

Temirzhan Aitbayev This is me
0000-0001-9725-985X
Kazakhstan

Akbope Aitbayeva This is me
0000-0003-3829-2937
Kazakhstan

Zhainagul Yertayeva ^*
0000-0001-8848-6794
Kazakhstan

Evgeny Petrov This is me
0009-0003-2891-7910
Kazakhstan

Berik Zorzhanov This is me
0000-0002-1552-7505
Kazakhstan

Bekzat Turegeldiyev This is me
0000-0003-4455-6994
Kazakhstan

Elmira Yeleuova This is me
0000-0002-6488-2714
Kazakhstan

Publication Date

October 1, 2025

Submission Date

December 12, 2024

Acceptance Date

June 5, 2025

Published in Issue

Year 2025 Volume: 14 Number: 4

DOI

https://doi.org/10.18393/ejss.1718601

IZ

https://izlik.org/JA59TK65HT

Cite

RIS / Bibtex

APA

Aitbayev, T., Aitbayeva, A., Yertayeva, Z., Petrov, E., Zorzhanov, B., Turegeldiyev, B., & Yeleuova, E. (2025). Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan. Eurasian Journal of Soil Science, 14(4), 313-324. https://doi.org/10.18393/ejss.1718601

AMA

1.Aitbayev T, Aitbayeva A, Yertayeva Z, et al. Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan. EJSS. 2025;14(4):313-324. doi:10.18393/ejss.1718601

Chicago

Aitbayev, Temirzhan, Akbope Aitbayeva, Zhainagul Yertayeva, et al. 2025. “Evaluation of Foliar Biostimulants and Micronutrient Complexes for Improving Tomato Growth, Yield, and Fruit Quality in Southeastern Kazakhstan”. Eurasian Journal of Soil Science 14 (4): 313-24. https://doi.org/10.18393/ejss.1718601.

EndNote

Aitbayev T, Aitbayeva A, Yertayeva Z, Petrov E, Zorzhanov B, Turegeldiyev B, Yeleuova E (October 1, 2025) Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan. Eurasian Journal of Soil Science 14 4 313–324.

IEEE

[1]T. Aitbayev et al., “Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan”, EJSS, vol. 14, no. 4, pp. 313–324, Oct. 2025, doi: 10.18393/ejss.1718601.

ISNAD

Aitbayev, Temirzhan - Aitbayeva, Akbope - Yertayeva, Zhainagul - Petrov, Evgeny - Zorzhanov, Berik - Turegeldiyev, Bekzat - Yeleuova, Elmira. “Evaluation of Foliar Biostimulants and Micronutrient Complexes for Improving Tomato Growth, Yield, and Fruit Quality in Southeastern Kazakhstan”. Eurasian Journal of Soil Science 14/4 (October 1, 2025): 313-324. https://doi.org/10.18393/ejss.1718601.

JAMA

1.Aitbayev T, Aitbayeva A, Yertayeva Z, Petrov E, Zorzhanov B, Turegeldiyev B, Yeleuova E. Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan. EJSS. 2025;14:313–324.

MLA

Aitbayev, Temirzhan, et al. “Evaluation of Foliar Biostimulants and Micronutrient Complexes for Improving Tomato Growth, Yield, and Fruit Quality in Southeastern Kazakhstan”. Eurasian Journal of Soil Science, vol. 14, no. 4, Oct. 2025, pp. 313-24, doi:10.18393/ejss.1718601.

Vancouver

1.Temirzhan Aitbayev, Akbope Aitbayeva, Zhainagul Yertayeva, Evgeny Petrov, Berik Zorzhanov, Bekzat Turegeldiyev, Elmira Yeleuova. Evaluation of foliar biostimulants and micronutrient complexes for improving tomato growth, yield, and fruit quality in Southeastern Kazakhstan. EJSS. 2025 Oct. 1;14(4):313-24. doi:10.18393/ejss.1718601

Cited By

Sequential foliar NPK nutrition and amino acid supplementation mitigate plant-available water deficit effects on growth, yield, and tuber carbohydrates of potato under greenhouse conditions

EURASIAN JOURNAL OF SOIL SCIENCE (EJSS)

https://doi.org/10.18393/ejss.1893889