Application of Bioorganic Fertilizer on Panax notoginseng Improves Plant Growth by Altering the Rhizosphere Microbiome Structure and Metabolism

Abstract

Bioorganic fertilizers can alleviate (a) biotic stresses and sustainably increase crop yields. The effect of bioorganic fertilizers on the rhizosphere bacterial community of Panax notoginseng and soil metabolism remains unknown. Here, we tracked the changes in the soil physicochemical properties, bacterial microbiota responses, and soil metabolic functions after the addition of a bioorganic fertilizer in a P. notoginseng field. The application of a bioorganic fertilizer reduced the soil acidification, improved the organic matter, and increased the contents of the total/available soil nutrients. Soil amendment with a bioorganic fertilizer significantly affected the structure of the rhizosphere bacterial community, leading to the enrichment of specific bacterial consortia such as Rhodanobacter, Arthrobacter, Sphingomonas, Devosia, Pseudolabrys, Luteimonas, Lysobacter, Nitrosospira, and Nakamurella. Previously, many of these genera have been associated with nutrient cycling, plant productivity, and disease suppression. Metabolome analysis further highlighted that the bioorganic fertilizer treatment significantly reduced phenolic acids and flavonoids and enhanced organic acids, saccharides and alcohols, and amino acids. This result indicates a high survival of bacterial microbiota in the rhizosphere and an availability of nutrients for P. notoginseng growth. This work showed that the application of bioorganic fertilizers significantly improves soil health status, alters soil metabolic functions, and stimulates a specific subset of rhizosphere microbiota for nutrient cycling and disease protection in P. notoginseng.

Effects of nitrogen reduction combined with bio-organic fertilizer on soil bacterial community diversity of red raspberry orchard

“…Only a small percentage of the bacterial species in the soil samples came from the organic manure itself. Shi [ 72 ] found that Shannon diversity decreased, and bacterial community composition shifted in the bioorganic fertilizer treatment compared to non-fertilizer treatment. There was no significant difference in species richness between the two treatments.…”

The effects of two biofertilizers on the physiology of replanted Zanthoxylum bungeanum and soil phenolic acids

“…Due to the numerous advantages of biofertilizers, extensive research has been conducted in this eld. For instance, bioorganic fertilizers have been successfully used in various crops such as peas and oats (Jannoura et al 2014), Panax notoginseng (Shi et al 2022), grapes , apples (Gu et al 2024), and walnuts (Du et al 2022) due to their high e ciency, fast results, and cost-effectiveness. Microbial fertilizers, which contain a plethora of bene cial microorganisms, are primarily employed for biological control of plant and soil diseases.…”

Coupling Effect of Water and Soluble Organic Fertilizer on Yield and Quality of Panax notoginseng under Micro-Sprinkler Irrigation in Southwest China

“…A reasonable fertilizer plan is needed to ensure the long-term growth of agriculture [21]. To improve soil health and increase crop yields, organic fertilizers are a great alternative to chemical fertilizers [22,23]. The benefits of applying organic fertilizer to soil include the strengthening of soil physical properties, the preservation of fertilizer and water functions, the enhancement of soil nutrient content, the improvement of soil microbial community structure and microenvironment, and the promotion of crop growth for roots and branches [24][25][26][27][28][29].…”