bi fosfor

Phosphate Solubilizing Bacteria

The microbial fertilizer bi fosfor contains phosphate solubilizing bacteria that enrich the soil and positively influence plant growth and health. The product stimulates plant growth and yield by delivering selected strains of phosphate solubilizing bacteria Bacillus megaterium to the soil, facilitating the release of phosphorus for plants.
Available packaging:
100 g
1 kg
5 kg
20 kg

Benefits of use:

Provides plants with readily available phosphorus from the soil by dissolving complex compounds and backward forms
Supports the formation of humus, providing plants with optimal growth conditions
Contributes to the creation of beneficial granular soil structure
Improves yield quantity and quality
Reduces the occurrence of harmful pathogens in crops

Product description:


The specialist microbial fertilizer bi fosfor contains carefully selected phosphate solubilizing bacteria Bacillus megaterium, which contribute to soil quality improvement. B. megaterium bacteria are referred to as "super bacteria" because they enhance soil fertility by providing plants with phosphorus that is readily available. Bacillus megaterium strains break down backward and bound forms of phosphorus (including phosphonates, phosphites) into phosphorus with excellent availability.

Bi fosfor contains a large quantity of Bacillus megaterium bacteria, allowing for the addition of up to 20-40 kg of extra phosphorus per hectare. This mineral participates in all plant life processes. Phosphorus is necessary for photosynthesis, metabolism, and the formation of proteins and reserve substances such as chitin and fats. Although this element is relatively immobile, it must be available at a specific depth in the soil profile – precisely in the rhizosphere, where root systems are located. It is important to note that plants absorb phosphorus from the soil only in the form of phosphoric acid (V) ions, and an adequate supply of this element is an essential element of successful cultivation.

Phosphorus deficiency disrupts plant's basic life functions – it weakens their growth and leads to problems in the development of the root system, resulting in poor uptake of nutrients contained in the soil. Unfortunately, the proportion of readily available phosphorus forms in Polish soils is too low, and it usually needs to be supplied systematically. By using phosphate solubilizing bacteria, also known as PSB, it is possible to dissolve backward phosphates and obtain more absorbable forms of phosphorus. PSB introduce not only phosphorus but also compounds such as auxins, cytokinins, siderophores, and vitamins into the soil. The use of phosphate solubilizing bacteria from the bi fosfor helps to optimize agricultural production in a natural way.

The microbial fertilizer bi fosfor is a unique product supporting organic farming. Developed using modern technologies, the product positively affects soil quality by providing optimal conditions for plant growth, development, and abundant yields. Phosphate solubilizing bacteria contained in bi fosfor are excellent for various types of crops, both in the field and under cover. This natural fertilizer improves plant resistance to stress, promotes the development of root mass, and counteracts pathogenic pathogens.

Bacillus megaterium at a concentration of 1x10⁹ CFU per gram of product.

Field crops0,5-1 kg/200-350 l water/ha1-2 times per spring season
Field vegetables0,5-1 kg/200-350 l water/ha1-2 times per spring season
Protected vegetables25 g/60-100 m21-2 times per spring season
Fruit trees and shrubs0,5-1 kg/400-600 l water/ha1-2 times per spring season
Berry crops: strawberries, currants, raspberries0,5-1 kg/200-400 l water/ha1-2 times per spring season

Additional information:

The microbial fertilizer bi fosfor with phosphate solubilizing bacteria should always be applied to moist soil, preferably together with humic acids promoting bacterial proliferation. The fertilizer should not be used in sunny weather or during droughts. Mixing it with fungicides is also not recommended.

bi fosfor has been approved for use in organic farming by the Institute of Soil Science and Plant Cultivation in Puławy, approval number: (SE/26/2020).


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