Proceedings of the 2025 6th International Conference on Management Science and Engineering Management (ICMSEM 2025)

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Effects of Polyglutamic Acid Controlled - Release Formulations on the Growth of Different Crops

Authors
Shousen Guo1, Lianqiang Xing6, Xinzhu Li4, Fujia Li1, Kunlun Li3, Wenjing Li5, Chen Zhao2, *, Lin Zhao1, *
1State Key Laboratory of Biobased Material and Green Papermaking, Shandong Provincial Key Laboratory of Microbial Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
2Yuantan Environmental Protection Technology (Shandong) Co., Ltd., Jinan, China
3Jinan Hangchen Biotechnology Co., Ltd., Jinan, People’s Republic of China
4Kingenta Ecological Engineering Group Co., Ltd., Linyi, China
5Shandong Institute of Commerce and Technology, Jinan, China
6Ferlang (China) Biotechnology Co., Ltd., Linyi, China
*Corresponding author. Email: zhaochen_bioeng@163.com
*Corresponding author. Email: iahb205@163.com
Corresponding Authors
Chen Zhao, Lin Zhao
Available Online 16 September 2025.
DOI
10.2991/978-94-6463-845-5_47How to use a DOI?
Keywords
Polyglutamic Acid; Controlled-Release Formulations; Crop Growth
Abstract

With the continuous growth of global food demand, enhancing agricultural productivity has become crucial. Traditional fertilization methods suffer from significant nutrient loss, whereas polyglutamic acid (γ-PGA) has attracted considerable attention owing to its capabilities in retaining water, enhancing fertilizer efficiency, amending soil, and boosting crop growth. However, commercially available polyglutamic acid products are predominantly quick-release formulations, characterized by rapid nutrient release, low utilization efficiency, and an inability to meet the sustained nutrient demands of long-cycle crops. This study developed three controlled-release polyglutamic acid powders—fast-acting, medium-acting, and slow-acting—and investigated their effects on crops with different growth cycles (chili peppers, tomatoes, and maize) through pot experiments when combined with blended fertilizers. Studies have shown that fast-acting polyglutamic acid significantly enhances stem diameter and other growth indicators in plants.aboveground fresh weight in chili peppers; medium-acting formulations were more effective in enhancing plant height and stem diameter in tomatoes; and medium- to slow-acting formulations demonstrated superior performance in improving plant height, stem diameter, and aboveground fresh weight in maize. The research confirms that controlled-release polyglutamic acid formulations exhibit significant adaptive differences in promoting crop growth, providing a theoretical basis for precisely selecting polyglutamic acid products according to crop characteristics in agricultural practices. This approach aids in optimizing fertilization strategies and enhancing fertilizer utilization efficiency.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 2025 6th International Conference on Management Science and Engineering Management (ICMSEM 2025)
Series
Atlantis Highlights in Economics, Business and Management
Publication Date
16 September 2025
ISBN
978-94-6463-845-5
ISSN
2667-1271
DOI
10.2991/978-94-6463-845-5_47How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Shousen Guo
AU  - Lianqiang Xing
AU  - Xinzhu Li
AU  - Fujia Li
AU  - Kunlun Li
AU  - Wenjing Li
AU  - Chen Zhao
AU  - Lin Zhao
PY  - 2025
DA  - 2025/09/16
TI  - Effects of Polyglutamic Acid Controlled - Release Formulations on the Growth of Different Crops
BT  - Proceedings of the 2025 6th International Conference on Management Science and Engineering Management (ICMSEM 2025)
PB  - Atlantis Press
SP  - 462
EP  - 470
SN  - 2667-1271
UR  - https://doi.org/10.2991/978-94-6463-845-5_47
DO  - 10.2991/978-94-6463-845-5_47
ID  - Guo2025
ER  -