Abstract
ABSTRACT There is a great interest to reduce doses and increase efficiency of inputs in agriculture. One alternative to lower doses of N fertilizers in corn is seed inoculation with diazotrophic bacteria, which can fix atmospheric N in soil. This study aimed to evaluate the effect of N doses-in the absence and presence of Azospirillum brasilense-on plant nutritional status at different growth stages and on seed yield of corn. The experiment was conducted during the 2011/2012 production season on a typical cerrado soil in Uberlândia, Triângulo Mineiro. The experimental design was randomized blocks with six repetitions. The treatments consisted of five N doses and the absence or presence of Azospirillum brasilense (100 mL ha-1) as a seed inoculant. A commercial product with minimum concentration of 2x108 CFU mL-1 100 mL ha-1 was used. Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage. Corn yield increased with N doses up to 150 kg N ha-1.
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Claims 5
Claim · model-written summary
Azospirillum seed inoculation did not significantly affect corn macronutrient content.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilense
Azospirillum brasilensee0symbionte1 - Outcome
- corn macronutrient contente0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage.”
e1“diazotrophic bacteria”
Claim · model-written summary
Azospirillum seed inoculation did not significantly affect yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbionte1
- Outcome
- yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage.”
e1“diazotrophic bacteria”
Claim · model-written summary
The inoculation exception involved foliar calcium at the V8 stage under 200 kg N ha-1.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbionte1
- Outcome
- foliar calciume0
- Qualifier
- at 200 kg N ha-1 at the V8 stagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage.”
e1“diazotrophic bacteria”
Claim · model-written summary
The inoculation exception involved potassium at the V8 stage under 200 kg N ha-1.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbionte1
- Outcome
- potassiume0
- Qualifier
- at 200 kg N ha-1 at the V8 stagee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation with Azospirillum brasilense did not significantly affect corn macronutrient content and yield, except for foliar calcium and potassium at 200 kg N ha-1 at the V8 stage.”
e1“diazotrophic bacteria”
Claim · model-written summary
Corn yield increased with nitrogen doses up to 150 kg N ha-1.
- Taxon
- CornZea mays subsp. mayse0
- Treatment
- N doses up to 150 kg N ha-1e0
- Outcome
- Corn yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Corn yield increased with N doses up to 150 kg N ha-1.”
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