Phosbac® 45
Biological Support for Root Development and Nutrient Availability
Phosbac 45® is a microbial biostimulant containing spores of the naturally occurring soil bacterium Bacillus velezensis strain FZB45. Designed to support root development and nutrient mobilisation, it helps improve nutrient availability, strengthen root systems, and enhance plant resilience under challenging growing conditions.
Suitable for a wide range of cropping systems, Phosbac 45® integrates easily into existing production programmes and is compatible with most fertilizers and crop protection products. It can be applied through seed treatment, drenching, soil application, fertigation, hydroponic systems, and root dipping. Applied early in plant development, Phosbac 45® provides flexible, reliable support for healthier crop establishment and growth.
Product Facts
Against
Nutrient availability and root development challenges
Active Ingredient
Bacillus velezensis strain FZB45
(synonym Bacillus amyloliquefaciens ssp. plantarum)
Formulation Type
Suspension concentrate and dry formulations
Concentration
Refer to label
Standard Dosage
Refer to label
Crops
Vegetables, potatoes, ornamentals, berries, fruit trees, soybean, wheat, barley, rye, sugar beet, corn, buckwheat, sunflower, rice and other crops
Shelf Life
Refer to label
Pack Size
1 L, 10 L
SDS
Tech
Sheet
Product
Label
Application Guidelines
Refer to the label
Apply early in plant development. Repeat applications may be used according to crop requirements and local recommendations.
At sowing, planting, transplanting, or during early crop establishment.
Seed treatment, drenching, soil incorporation, soil surface spraying, fertigation, hydroponic injection, or root dipping.
Compatible with most fertilizers and crop protection products. Conduct a jar test before tank mixing.
Suitable for organic and residue-free production systems.
Key Product Benefits
Promotes strong root growth and establishment for improved nutrient uptake.
Helps unlock nutrients within the soil and improve their availability to plants.
Mixes easily with most fertilizers and crop protection products for flexible use across different crop management programs.
Suitable for seed treatment, drenching, soil application, fertigation, hydroponics and root dipping.
Compatible with organic and residue-free production systems.
Liquid formulation with a two-year shelf life at room temperature.
Supporting Plant Performance
Grow with Us
Trusted by Growers and Partners
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Disclaimer
Performance information for Phosbac® 45 is based on internal trials, field observations and/or publicly available data. Results may vary depending on local crop management, soil type and weather conditions. Always read and follow label directions.
© 2026 Andermatt Group. Phosbac® 45 is a registered trademark of Andermatt Group.