The Effects of Foliar Application of Vermicompost, Humic Acid, And Seaweed Liquid Fertilizers on the Growth and Development of Forage Soybean Varieties

DOI

10.2991/978-94-6239-666-1_40How to use a DOI?

Keywords

Seaweed; Humic acid; Forage soybean; Vermicompost

Abstract

This study was conducted in the climate chamber of the Department of Field Crops, Faculty of Agriculture, Van Yüzüncü Yıl University, using a randomized plot design with three replications. The plant materials consisted of forage soybean [Glycine max (L.) Merr.] varieties “Yemsoy” and “Yeşilsoy.” DAP was applied as the basal fertilizer, while seaweed extract, humic acid, and vermicompost were used as foliar fertilizers. The results indicated that the application factor had a significant effect at the 1% level on stem, fresh, dry, and leaf weights. The variety factor was significant for fresh weight (5%), leaf weight (1%), leaf ratio (5%), and stem ratio (5%). The application × variety interaction was significant only for dry weight at the 1% level. According to the findings, no significant difference was observed between varieties in terms of stem weight. The highest value was obtained from vermicompost with 3.84 g, while the lowest was recorded in the control plots with 2.49 g. For fresh weight, Yemsoy (12.82 g) was higher than Yeşilsoy (11.93 g); among the applications, the highest value was obtained from vermicompost (14.37 g), whereas the lowest was recorded in the control (10.45 g). Regarding dry weight, the highest value was obtained from seaweed (4.47 g) and the lowest from the control (3.20 g).When the varieties were compared, Yemsoy showed a higher leaf ratio (75.5%) than Yeşilsoy (73.38%), while Yeşilsoy had a higher stem ratio (26.62%) compared to Yemsoy (24.50%). No statistically significant differences were detected among applications in terms of leaf and stem ratios.

Copyright

© 2026 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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TY  - CONF
AU  - Zübeyir Ağirağaç
AU  - Muhammed Öztürk
AU  - Şeyda Zorer Çelebi
PY  - 2026
DA  - 2026/05/07
TI  - The Effects of Foliar Application of Vermicompost, Humic Acid, And Seaweed Liquid Fertilizers on the Growth and Development of Forage Soybean Varieties
BT  - Proceedings of the 5th International Conference on Research of Agricultural and Food Technologies (I-CRAFT 2025)
PB  - Atlantis Press
SP  - 432
EP  - 441
SN  - 3005-155X
UR  - https://doi.org/10.2991/978-94-6239-666-1_40
DO  - 10.2991/978-94-6239-666-1_40
ID  - Ağirağaç2026
ER  -