Abstract
There is a growing interest in optimizing the positive effects of the association between Azospirillum bacteria and corn crop in order to reduce the use of nitrogen fertilizers. This study aimed to evaluate the inoculation efficiency of an A. brasilense-based commercial product in association with different rates of nitrogen fertilization in two corn genotypes. The experiment was arranged in a 2 x 2 x 5 factorial randomized block design, with four replications. The treatments consisted of two corn hybrids (30F53 and CD386); with and without inoculation with a commercial product based on A. brasilense and five nitrogen rates (0, 40, 80, 120 and 160 kg ha-1). The variables plant height, basal stem diameter, leaf area, shoot dry matter, leaf nitrogen content, length and diameter of the cob, weight of 100 grains and grain yield were evaluated. Inoculation with A. brasilense provided increases of 11 and 12% in leaf area and shoot dry matter, respectively. There were differences in the response of the corn hybrids for most variables and the increase in nitrogen supply provided increments in the growth and yield of corn.
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Claims 4
Claim · model-written summary
Azospirillum inoculation increased corn leaf area by 11%.
- Taxon
- corn
Zea mays subsp. mayst0 - Treatment
- Inoculation with A. brasilensee0
- Interactor
- A. brasilense
Azospirillum brasilensee0symbiont - Outcome
- leaf areae0
- Direction
- increasese0
- Value
- 11 and 12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with A. brasilense provided increases of 11 and 12% in leaf area and shoot dry matter, respectively.”
t0“corn hybrids”
Claim · model-written summary
Azospirillum inoculation increased corn shoot dry matter by 12%.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Inoculation with A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- shoot dry mattere0
- Direction
- increasese0
- Value
- 12%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with A. brasilense provided increases of 11 and 12% in leaf area and shoot dry matter, respectively.”
t0“corn hybrids”
Claim · model-written summary
Corn hybrids differed in their responses for most variables.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- response of the corn hybrids for most variablese0
- Direction
- differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were differences in the response of the corn hybrids for most variables”
Claim · model-written summary
Increasing nitrogen supply increased corn growth and yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- increase in nitrogen supplye0
- Outcome
- growth and yielde0
- Direction
- incrementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in nitrogen supply provided increments in the growth and yield of corn”
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