Abstract
Pre-inoculating soybean seeds can make sowing faster and provide additional benefits to farmers. However, it needs to guarantee the nitrogen supply to maintain the viability and sustainability of the technique. In this study, we evaluated the agronomic efficiency of SIGNUM® inoculant in the pre-inoculation at 20 and 35 days before sowing chemically treated soybean seeds. Experiments were conducted in four field experiments located at Paraná, Brazil, with a history of soybean cultivation managed under no-tillage systems, with crop rotation according to regional edaphoclimatic conditions. Agronomic efficiency in fields were compared with standard inoculation with a registered product used by farmers. Chemical treatment of soybean seeds with Standak Top® or Maxin XL® + Cruiser® associated with pre-inoculation of the inoculant SIGNUM® for 25 and 30 days reduced the concentration of viable Bradyrhizobium cells recovered from seeds. However, no significant difference was observed regarding nodulation, biological nitrogen fixation, and yield between the soybean inoculated with standard inoculation on farm or pre-inoculation with SIGNUM® in most studied areas.
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Claims 2
Claim · model-written summary
Chemical seed treatment with Standak Top or Maxin XL + Cruiser combined with pre-inoculation with SIGNUM for 25 and 30 days reduced the concentration of viable Bradyrhizobium cells recovered from soybean seeds.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Chemical treatment of soybean seeds with Standak Top® or Maxin XL® + Cruiser® associated with pre-inoculation of the inoculant SIGNUM® for 25 and 30 dayse0
- Interactor
- Bradyrhizobium
Bradyrhizobiume0symbiont - Outcome
- concentration of viable Bradyrhizobium cells recovered from seedse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e0“Chemical treatment of soybean seeds with Standak Top® or Maxin XL® + Cruiser® associated with pre-inoculation of the inoculant SIGNUM® for 25 and 30 days reduced the concentration of viable Bradyrhizobium cells recovered from seeds”
Claim · model-written summary
In most studied areas, soybean pre-inoculated with SIGNUM showed no significant difference in nodulation, biological nitrogen fixation and yield compared with standard on-farm inoculation.
- Taxon
- soybean
Glycine maxe0 - Treatment
- pre-inoculation with SIGNUM®e0
- Outcome
- nodulation, biological nitrogen fixation, and yielde0
- Direction
- no significant differencee0
- Qualifier
- in most studied arease0
- Comparator
- standard inoculation on farme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“no significant difference was observed regarding nodulation, biological nitrogen fixation, and yield between the soybean inoculated with standard inoculation on farm or pre-inoculation with SIGNUM® in most studied areas”
The same questions in other papers
inoculation · Bradyrhizobium · Glycine max (soybean)Positive and negative results
4 papers in the same direction as this paper · 29 in the opposite direction
- positive
- positive
- positive
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See all 34 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.