Effects of Different Fertilizer Treatments on Fresh-Cut Rose Planting and Soil Microorganisms

Abstract

Taking the rose variety Beautiful Color as the research subject, five fertilization treatments (T1 to T5) were implemented to investigate their effects on soil microbial communities and diversity. The study aimed to develop scientific and sustainable fertilization practices for rose cultivation. The results revealed that, compared with the unfertilized control (T5), the application of microbial agents (T1-T4) significantly promoted rose growth, enhanced agronomic traits, and improved both the quality and yield of fresh cut flowers. However, there was no significant reduction in disease incidence across the treatments. Among the treatments, T2 (a combination of microbial agents, 20-20-20 water-soluble fertilizer, aminobutyric acid, and polyglutamate) exhibited the most pronounced effects. Bacterial diversity and richness increased by 3.23% and 8.89%, respectively, while the relative abundance of Firmicutes rose by 6.37%. Fungal diversity and richness also improved significantly, with Basidiomycota showing a higher relative abundance compared to T5. These findings provide valuable insights into optimizing rose fertilization techniques and serve as a reference for improving rose cultivation practices.