Abstract
The grain production area in the Brazilian agricultural region known as SEALBA, especially in Alagoas State, has seen significant growth in recent years. This study aims to contribute to sustainable regional development by evaluating the effects of inoculation, co-inoculation, and the application of starter mineral nitrogen (N), either individually or in combination, on soybean growth and yield. Eight field experiments were conducted from 2018 to 2021 in two municipalities within Alagoas, covering soybean cultivation areas ranging from the first to the fourth year. The experiments followed a randomized complete block design with four replications, employing a factorial arrangement of treatments. The first factor encompassed five levels related to inoculation technologies and N management: 1) Inoculation with Bradyrhizobium; 2) Inoculation with Bradyrhizobium combined with N basal fertilization; 3) Co-inoculation of Bradyrhizobium + Azospirillum; 4) Co-inoculation of Bradyrhizobium + Azospirillum + N fertilization at the base; and 5) Control treatment without microbiological inputs or nitrogen fertilizers. The second factor involved the evaluation of different soybean cultivars, with two materials assessed in 2018 and three cultivars in 2019, 2020, and 2021. Results demonstrated that seed inoculation with Bradyrhizobium led to increased soybean grain yield in first-year cultivation areas. However, N basal fertilization, commonly known as starter fertilization, did not result in yield improvements compared to the use of microbiological inputs alone. Soybean cultivars BRS 9383 IPRO and FTR 3191 IPRO exhibited greater responsiveness to seed inoculation with Bradyrhizobium.
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Claims 4
Claim · model-written summary
Bradyrhizobium seed inoculation increased soybean grain yield in first-year cultivation areas.
- Taxon
- soybean
Glycine maxe0 - Treatment
- seed inoculation with Bradyrhizobiume0
- Interactor
- Bradyrhizobium
Bradyrhizobiume0symbiont - Outcome
- soybean grain yielde0
- Direction
- increasede0
- Setting
- first-year cultivation arease0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Results demonstrated that seed inoculation with Bradyrhizobium led to increased soybean grain yield in first-year cultivation areas.”
Claim · model-written summary
Starter N fertilization did not improve soybean yield relative to microbiological inputs alone.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- N basal fertilizatione0
- Outcome
- yielde0
- Direction
- did not result in yield improvementse0
- Comparator
- microbiological inputs alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N basal fertilization, commonly known as starter fertilization, did not result in yield improvements compared to the use of microbiological inputs alone.”
t0“Soybean production”
Claim · model-written summary
BRS 9383 IPRO showed greater responsiveness to Bradyrhizobium seed inoculation.
- Taxon
- SoybeanGlycine maxe0
- Material
- BRS 9383 IPROe0
- Treatment
- seed inoculation with Bradyrhizobiume0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- responsiveness to seed inoculation with Bradyrhizobiume0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean cultivars BRS 9383 IPRO and FTR 3191 IPRO exhibited greater responsiveness to seed inoculation with Bradyrhizobium.”
Claim · model-written summary
FTR 3191 IPRO showed greater responsiveness to Bradyrhizobium seed inoculation.
- Taxon
- SoybeanGlycine maxe0
- Material
- FTR 3191 IPROe0
- Treatment
- seed inoculation with Bradyrhizobiume0
- Interactor
- BradyrhizobiumBradyrhizobiume0symbiont
- Outcome
- responsiveness to seed inoculation with Bradyrhizobiume0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean cultivars BRS 9383 IPRO and FTR 3191 IPRO exhibited greater responsiveness to seed inoculation with Bradyrhizobium.”
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