Abstract
Maize plants have a high nitrogen (N) demand, and thus, the fertilizers’ sustainable management and the inoculation with N2-fixing bacteria are the alternatives to reduce fertilization cost and the environmental impacts with N fertilizers. Under no tillage system, the N2-fixing inoculant Azospirillum brasiliense effects were compared with mineral N fertilization for maize crop. The N fertilization treatments influenced all variables in the 2014/2015 season and the cob insertion, plant height, yield, and N concentration in leaves in the 2015/2016 season, suggesting that the N supply, either N mineral from A. brasiliense increased growth and yield of maize plants. The maize cultivars influenced all variables in the two seasons. There was no interaction effect of cultivars × N fertilization on the variables. Thus, the maize cultivars had similar performance regardless treatments. The inoculation with A. brasiliense increased maize yield compared with non-N-fertilized plants and the inoculation with Azospirillum at sowing + mineral N at topdress provided similar grain yield as mineral N at sowing and topdress for both cultivars.
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Claims 6
Claim · model-written summary
Nitrogen fertilization affected all measured maize variables in 2014/2015.
Not reportedTaxonComparatorDirection
Verbatim
e0“The N fertilization treatments influenced all variables in the 2014/2015 season”
Claim · model-written summary
Nitrogen fertilization affected cob insertion, plant height, yield and leaf nitrogen in 2015/2016.
- Outcome
- cob insertion, plant height, yield, and N concentration in leavese0
- Qualifier
- 2015/2016 seasone0
Not reportedTaxonTreatmentComparatorDirection
Verbatim
e0“the cob insertion, plant height, yield, and N concentration in leaves in the 2015/2016 season”
Claim · model-written summary
Maize cultivar influenced all measured variables in both seasons.
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maize cultivars influenced all variables in the two seasons.”
Claim · model-written summary
Cultivar and nitrogen treatment showed no interaction on the measured variables.
Not reportedTaxon
Verbatim
e0“There was no interaction effect of cultivars × N fertilization on the variables.”
Claim · model-written summary
Azospirillum inoculation increased maize yield relative to plants without nitrogen fertilizer.
- Treatment
- inoculation with A. brasiliensee0
- Interactor
- A. brasiliensee0symbiont
- Outcome
- maize yielde0
- Direction
- increasede0
- Comparator
- non-N-fertilized plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inoculation with A. brasiliense increased maize yield compared with non-N-fertilized plants”
Claim · model-written summary
Azospirillum at sowing plus mineral nitrogen at topdress gave grain yield similar to mineral nitrogen at sowing and topdress.
- Treatment
- inoculation with Azospirillum at sowing + mineral N at topdresse0
- Interactor
- Azospirillum
Azospirillume0symbiont - Outcome
- grain yielde0
- Direction
- similare0
- Comparator
- mineral N at sowing and topdresse0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the inoculation with Azospirillum at sowing + mineral N at topdress provided similar grain yield as mineral N at sowing and topdress for both cultivars.”
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