Paper · 2022 · Journal of Agricultural Science

Agronomic Efficiency of Signum Inoculant in Pre-inoculation of Soybean at 35 and 20 Days Before Sowing in Treated Seeds

Gabriela S. Machineski; Andrea S. Scaramal; Maria A. Matos; et al.

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claims
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verbatim quotes
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citations
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research areas
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Open access · cc-by

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.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 2

Intervention effectobservedoriginal resultnegativemeasured

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
soybeanGlycine 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
BradyrhizobiumBradyrhizobiume0symbiont
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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Bradyrhizobium
Bradyrhizobium · Interactor · picture of the genus (one of its species)Louisa Howard - Dartmouth Electron Microscope Facility · Public domain · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 708–939 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

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
soybeanGlycine 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.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

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”

✓ located verbatim in the source · abstract, characters 950–1169 · show in text ↑

inoculation · Bradyrhizobium · Glycine max (soybean)Positive and negative results

34 papers: 29 positive, 5 negative or no effect

4 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

30 papers more in this group

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.