The preparations contain pure lyophilisates of papillary bacteria, specific to the bean plant species. By entering into symbiosis with broad bean plants, the papillary bacteria supply them with nitrogen – the most important yield-forming nutrient – in return extracting carbon compounds. The use of seed treatment not only increases the yield of the crop, but also improves its quality by increasing the proportion of protein in the total weight of the crop.
The products of the bacteria’s metabolism and the nitrogen they assimilate enrich the soil, improving soil fertility and enhancing crop yields in succeeding crops. The use of Rhizobium allows nitrogen fertiliser rates to be significantly reduced. The vaccines are produced in a way that guarantees a high concentration and viability of the bacteria, which contributes to their stability and high reproducibility.