Abstract
The agronomic potential of corn is below the genetic potential of high technology hybrid available in Brazil due to the inadequate management of soil fertility, especially of nitrogen fertilizer, essential photosynthetic activity and determining the crop yield. This study evaluated the agronomic performance and yield of maize culture grown with increasing doses of nitrogen (N), in the absence and presence of Azospirillum brasilense in brazilian Savanna. The design used was the one of randomized blocks in factorial scheme, with five doses of N in corn (0, 50, 100, 150 and 200 kg ha-1), with and without inoculation of the bacterium, with six replications. It analyzed the N content and leaf chlorophyll was measured plant height, stem diameter, insertion spike length and diameter thousand grain weight, grain rot and productivity. The addition of N fertilizers promotes better agronomic performance of maize plants, being this effect greater in the presence of Azospirillum. The productivity of corn respond the dose of 200 kg ha-1 N in the presence of Azospirillum. In 2012/13 crop corn inoculation with Azospirillum brasilense did not cause differences in productivity, plant height, diameter stem, weight of one thousand grains, number of ears and content of chlorophyll A, B and total. Key words: Fertility, nitrogen fertilization, inoculation, productivity.
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Claims 5
Claim · model-written summary
Nitrogen fertilizer improved maize agronomic performance, more in the presence of Azospirillum.
- Treatment
- addition of N fertilizerse0
- Interactor
- Azospirillum
Azospirillume0symbiont - Outcome
- agronomic performancee0
- Direction
- bettere0
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of N fertilizers promotes better agronomic performance of maize plants, being this effect greater in the presence of Azospirillum”
Claim · model-written summary
Corn productivity responded to 200 kg ha-1 N with Azospirillum.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- dose of 200 kg ha-1 Ne0
- Interactor
- AzospirillumAzospirillume0symbiont
- Outcome
- productivitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The productivity of corn respond the dose of 200 kg ha-1 N in the presence of Azospirillum”
Claim · model-written summary
Azospirillum inoculation did not cause differences in corn productivity, plant height, and stem diameter in 2012/13.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilense
Azospirillum brasilensee0symbiont - Outcome
- productivity, plant height, diameter steme0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012/13 crop corn inoculation with Azospirillum brasilense did not cause differences in productivity, plant height, diameter stem, weight of one thousand grains, number of ears and content of chlorophyll A, B and total”
Claim · model-written summary
Azospirillum inoculation did not cause differences in thousand grain weight or number of ears in 2012/13.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbiont
- Outcome
- weight of one thousand grains, number of earse0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012/13 crop corn inoculation with Azospirillum brasilense did not cause differences in productivity, plant height, diameter stem, weight of one thousand grains, number of ears and content of chlorophyll A, B and total”
Claim · model-written summary
Azospirillum inoculation did not cause differences in chlorophyll A, B, or total content in 2012/13.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- inoculation with Azospirillum brasilensee0
- Interactor
- Azospirillum brasilenseAzospirillum brasilensee0symbiont
- Outcome
- content of chlorophyll A, B and totale0
- Direction
- did not cause differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 2012/13 crop corn inoculation with Azospirillum brasilense did not cause differences in productivity, plant height, diameter stem, weight of one thousand grains, number of ears and content of chlorophyll A, B and total”
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