Yuping Huang , Yunxia Chen , Hangming Lin

Tropical Legume Research Center, Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, Hainan, China
Author    Correspondence author
Legume Genomics and Genetics, 2025, Vol. 16, No. 6   doi: 10.5376/lgg.2025.16.0026
Received: 05 Sep., 2025    Accepted: 22 Oct., 2025    Published: 05 Nov., 2025

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.

Huang Y.P., Chen Y.X., and Lin H.M., 2025, Study on optimizing density planting and fertilization strategies to increase bean yield, Legume Genomics and Genetics, 16(6): 253-269 (doi: 10.5376/lgg.2025.16.0026)

Legumes play an important role in ensuring food security and promoting sustainable agricultural development. As key agronomic measures to increase legume yields, dense planting and fertilization management have attracted increasing attention for their optimal combination. Based on field trials of various legumes and recent research results, this study systematically explored the effects of different dense planting levels on plant morphology, population structure and yield composition, analyzed the regulatory mechanisms of nitrogen, phosphorus and potassium ratios, organic and inorganic fertilizer synergy and topdressing timing on nutrient absorption and nitrogen fixation efficiency, and further discussed the effects of the interactive effects of dense planting and fertilization on biomass accumulation and resource allocation. Through regional trials in Zhumadian, Henan and Qiqihar, Heilongjiang, this study clarified the yield potential and economic benefits of the "medium-high density + nitrogen reduction and potassium increase" and "medium density + controlled-release fertilizer" models, providing a theoretical basis and practical path for achieving regionalized precision management and green and high-yield legume cultivation, which will help improve China's legume self-sufficiency level and promote the green transformation of agriculture.

Legume crops; Close planting; Nutrient management; Nitrogen fixation; Organic and inorganic fertilizers; High-yield cultivation