Investigating the impact of soil properties on the nutrient content and microbial community of sisal (Agave sisalana Perrine)

• Autores: Ping Liu, Zhaoxue Huang, Shibei Tan, Weihuai Wu, Tao Chen, Jianfeng Qin, Kexian Yi, Helong Chen
• Localización: Agricultura técnica, ISSN-e 0718-5839, ISSN 0365-2807, Vol. 85, Nº. 2, 2025, págs. 215-231
• Idioma: inglés
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  • ABSTRACT Sisal (Agave sisalana Perrine), a crucial natural fiber source, exhibits varying yields in China’s Guangdong and Guangxi regions. This groundbreaking study sampled soil and sisal leaves from these production hubs to explore the interplay among soil pH, enzyme activity, microorganisms, and sisal nutrition. Using PCR and high-throughput sequencing, results indicate Guangdong’s soil is mildly acidic, contrasting with Guangxi’s neutral to slightly alkaline soil. Both regions show a robust correlation between soil pH and nutrient availability (organic matter, P, K). Enhanced soil enzyme activity is observed at higher pH levels (6.09, 7.39). Dominant bacterial phyla Acidobacteria, Proteobacteria, and Actinobacteria peak at pH 7.39, 6.09, and 5.41, respectively. Fungal phyla Ascomycota, Basidiomycota, and Mortierellomycota thrive at pH 4.23, 7.39, and 6.48. Sisal leaves display optimal nutrient levels at specific pHs: N, P, and K at pH 6.09; Ca at pH 7.39; Mg at pH 6.48. Functional predictions reveal fungal abundance varies with pH, while bacterial functions like metabolism, disease resistance, and environmental adaptation are bolstered in Guangxi’s alkaline soils compared to Guangdong’s acidic ones. These findings provide a scientific basis for optimizing sisal cultivation management.