Rizoliq® Top S

Promotes the formation of nodule bacteria on the roots of the soybean plant.

Listed in the
FiBL Input List for
organic farming
in Germany

The nodule-forming bacteria in legumes supply the plants with the necessary nitrogen from the atmosphere. Even without the use of mineral nitrogen fertilizers, maximum yields are ensured for crops such as soybeans.

Advantages of Rizoliq® Top S

Climate-adapted bacteria

Contains the Bradyrhizobium japonicum bacterial strains – SEMIA specially selected for Germany.

First-class handling and labor saving

Liquid formulation enables inoculation of larger seed quantities via seed coating machines.

Reduces stress

TOP technology is a unique high-tech manufacturing process. It strengthens bacterial cell walls and thus reduces stress, such as soil pH, dryness, etc.

Long shelf life

TOP technology achieves higher germination rates and a longer shelf life in the packaging and on the seed.

More flexibility after inoculation

With the addition of Premax® liquid bacterial nutrition and bacterial protection, sowing is possible up to 20 days after treatment. See application recommendation.

Higher bacterial density

With at least 2 x 109 CFU per ml, Rizoliq® Top S contains significantly more bacteria than comparable products. This ensures improved nodule formation.

Very high adhesion

The preparation is particularly suitable for use in pneumatic seed drills, as Rizoliq® Top S adheres very well to the seed as a liquid inoculant.

  • At least 2 x 109 CFU per ml (at the end of the shelf life)
  • Bradyrhizobium japonicum SEMIA 5079 and SEMIA 5080
  • Simple inoculation:
    300 ml Rizoliq® Top S and
    100 ml Premax®
    per hectare of seed
  • Double inoculation:
    2 x 300 ml Rizoliq® Top S
    and 1 x 100 ml
    Premax® per hectare of seed
Two packaging units
  • 300 ml Rizoliq® Top S and
    100 ml Premax® for 1 ha
  • 1.500 ml Rizoliq® Top S and
    500 ml Premax® for 5 h

What is
“Top” technology?

  • A procedure during the manufacturing process of the inoculants
    • The bacteria are exposed to various “stress situations”
  • The main objective is to strengthen the bacterial cell membrane. The advantages are:
    • Protection of the bacteria from drying out: this ensures that the bacteria can achieve a significantly extended survival time on the inoculated seed.
    • More CFU per ml of inoculant and longer shelf life in the packaging: Higher efficiencies are achieved and the shelf life of the inoculants in storage is improved. (unopened, 18 months shelf life!)
    • Higher bacterial concentration and better survival rate on the seed. This is important in order to place as many bacteria as possible on the individual seeds and also to be able to carry out inoculation up to 20 days before sowing.

of bacteria
drying out

More KBE per ml
of vaccine
and longer
packaging life

Higher bacterial
concentration and
better survival rate
on the seed

Influence of the “top” formulation on bacterial life (inoculated seed)


Application recommendation
Rizoliq® Top S

Inoculation without UV light:

Seed treatment should be carried out in a place protected from direct sunlight.

Shake before use:

The bags of Rizoliq® Top S und Premax® should be shaken before use.


Mix Rizoliq® Top S und Premax® together and then add it to the seed at the specified dosage until it is evenly wetted.

Limit the amount of Premax®:

Only add a maximum of 100 ml Premax® when doubling the amount of inoculant, otherwise sticking may occur.

Drying before sowing:

Allow the inoculated seed to dry for a few minutes or overnight before sowing.

Greater flexibility when inoculating:

For high efficacy, inoculated seed should be sown as soon as possible, even if sowing is possible up to 20 days after treatment with Rizoliq® Top S and Premax®.


Please store treated seed that is not sown immediately in a cool, dry place away from direct light.

Seed drill:

Calibrate the seed drill with the treated and dried seed.

Ask your local retail partner for a suitable offer!

Interesting facts about
Rizoliq® Top S

Main root or secondary root?

Nodules on the main/primary root are ten times more efficient than nodules on the lateral/secondary roots

Measurement of nitrogenase* activity in the nodules

  • Nodules PR: 36 µM.g-1.h-1
  • Nodules LR: 2.86 µM.g-1.h-1
* Nitrogenase: enzyme complex that makes elementary nitrogen N2 available to plants

Effects of bacterial concentration on the number of nodules and location of formationg
(LR: lateral root, PR: primary root)


Nodule formation through seed inoculation

Root inoculation process
Formation of root nodules

* Bacteroids are deformed bacterial cells that have the ability to fix nitrogen