Subtropical Plant Science >

2026 , Vol. 55 >Issue 1: 57 - 63

DOI: https://doi.org/10.3969/j.issn.1009-7791.2026.01.006

Research articles

Effects of Microbial Fertilizers on the Growth of Bischofia javanica Transplanted Trees and Soil Improvement in Coastal Challenging Green Spaces

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  • (1. Xiamen Iport Urban Greening Management Co., Ltd., Xiamen 361102, Fujian China; 2. Fujian Sanju Biotechnology Co., Ltd., Xiamen 361008, Fujian China; 3. Fujian Institute of Subtropical Botany, Xiamen 361006, Fujian China; 4. Zhangzhou Sanju Biotechnology Co., Ltd., Zhangzhou 363601, Fujian China)

Received date: 2025-11-10

  Accepted date: 2025-12-16

  Online published: 2026-02-28

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Abstract

To improve the planting quality of coastal difficult green spaces, microbial fertilizers were used to promote seedling growth and improve soil. Four treatments were set up: organic fertilizer+compound fertilizer (traditional fertilization, CK), solid microbial inoculants+compound fertilizer (T1), solid microbial inoculants+ liquid microbial inoculants+humic acid water-soluble fertilizer (T2), and solid microbial inoculants+compound microbial fertilizer (T3). The effects of microbial fertilizer application on Bischofia javanica seedling growth, root activity, salt ion content, and soil physicochemical properties were analyzed. The results showed that after 6 months of transplanting, the application of microbial fertilizers significantly promoted seedling growth, improved soil physicochemical properties, and inhibited soil salinization, with a survival rate of 100%. In contrast, the survival rate of seedlings with traditional fertilization was only 80%, with leaf curling and wilting, a tendency for top baldness, and salt damage characteristics. Compared with CK, the number of new shoots, root activity, and chlorophyll SPAD of microbial fertilizers increased by 9.7%–34.8%, 26.2%–49.6%, and 6.9%–14.0%, respectively. Treatment T2 had the best effect, followed by T3 and T1. Treatment T2 significantly increased the total nitrogen, alkali-hydrolyzed nitrogen, available potassium, and organic matter content in the soil, and regulated soil pH. After 6 months of transplanting, the chloride ion (Cl–) and sodium ion (Na+) content in the upper layer of the soil (0–30 cm) was higher than that in the lower layer (30–60 cm), showing characteristics of salinization. There was no significant difference in sodium ion (Na+) content among the treatments. Treatment T3 had the most significant effect on inhibiting chloride ion (Cl–) content, followed by T1 and T2. In summary, the application of microbial fertilizers can promote root growth and new shoot development of transplanting seedlings, increase seedling survival rates, and improve soil fertility. The best effect was achieved with the application of solid microbial inoculants+liquid microbial inoculants+humic acid water-soluble fertilizer. For inhibiting soil salinization, the best effect was achieved with the application of solid microbial inoculants + compound microbial fertilizer.

Key words： coastal challenging green spaces; Bischofia javanica; microbial fertilizer; saline-alkalilands; salt re-accumulation; soil improvement

Cite this article

LI Ju-kui, ZHAI Xiu-cai, CHEN Yue-qin, GUO Xiao-hong, YANG Zhi-min, PAN Wei-jie, LIAO Qi-liao, CHEN Xiao-yan . Effects of Microbial Fertilizers on the Growth of Bischofia javanica Transplanted Trees and Soil Improvement in Coastal Challenging Green Spaces[J]. Subtropical Plant Science, 2026 , 55(1) : 57 -63 . DOI: 10.3969/j.issn.1009-7791.2026.01.006

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