Wei Huang

1 Changshan Qiaojia Agricultural Technology Co., Ltd., Changshan 324200, Zhejiang,China
2 Zhejiang Agronomist College, Hangzhou, 310021, Zhejiang, China
Author    Correspondence author
Legume Genomics and Genetics, 2026, Vol. 17, No. 1   
Received: 18 Feb., 2026    Accepted: 20 Mar., 2026    Published: 31 Mar., 2026

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Planting density is a key agronomic factor influencing soybean growth and yield formation. This study investigated the effects of different planting densities on soybean growth traits, physiological characteristics, and yield components through field experiments. The results showed that increasing planting density significantly affected plant height, leaf area index, and dry matter accumulation. Moderate density improved canopy structure and enhanced light and resource use efficiency, thereby increasing population yield. However, excessive density intensified intraspecific competition, leading to reduced seed weight and individual plant productivity. An optimal planting density range was identified to balance individual growth and population yield. These findings provide a theoretical basis for optimizing soybean cultivation practices and improving yield under different production conditions.

Soybean; Planting density; Growth traits; Yield components; Resource use efficiency