Abstract
Abstract: The objective of this work was to evaluate the effect of inoculation with Azospirillum brasilense, associated with N rates and sources, in soil of the Cerrado (Brazilian savanna), on the grain yield of irrigated wheat (Triticum aestivum). The experiment was carried out under a no-tillage system in a Typic Haplustox. The experimental design was randomized complete blocks with four replicates, in a 2x5x2 factorial arrangement: two N sources (urea and urea with NBPT urease inhibitor); five N rates applied as topdressing (0, 50, 100, 150, and 200 kg ha-1); and with or without seed inoculation with A.brasilense. The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat, regardless of the use of NBPT urease inhibitor with conventional urea. Singly, inoculation with A.brasilense does not affect production components and grain yield, despite the increase in N content in wheat straw. The inoculation with A.brasilense, associated with the application of 140 kg ha-1 N, provides the highest grain yield of irrigated wheat cropped after corn in low-altitude Cerrado.
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Claims 6
Claim · model-written summary
Increasing N rates positively affected spike length, number of spikelets and grains per spike of irrigated wheat.
- Taxon
- wheat
Triticum aestivume1 - Organ / stage
- spikee1
- Treatment
- N ratese1
- Outcome
- spike length, number of spikelets and of grains per spikee1
- Direction
- positively affectede1
- Setting
- Cerradoe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soil of the Cerrado (Brazilian savanna)”
e1“The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat”
Claim · model-written summary
Increasing N rates positively affected number of spikes per meter, N accumulation in wheat straw and leaf chlorophyll content.
- Taxon
- wheatTriticum aestivume1
- Organ / stage
- strawe1
- Treatment
- N ratese1
- Outcome
- number of spikes per meter, N accumulation in the straw, leaf chlorophyll contente1
- Direction
- positively affectede1
- Setting
- Cerradoe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soil of the Cerrado (Brazilian savanna)”
e1“The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat”
Claim · model-written summary
Increasing N rates positively affected grain yield of irrigated wheat.
- Taxon
- wheatTriticum aestivume1
- Treatment
- N ratese1
- Outcome
- grain yielde1
- Direction
- positively affectede1
- Setting
- Cerradoe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in soil of the Cerrado (Brazilian savanna)”
e1“The increase in the N rates positively affected spike length, number of spikelets and of grains per spike, number of spikes per meter, N accumulation in the straw, leaf chlorophyll content, and grain yield of irrigated wheat”
Claim · model-written summary
Singly, inoculation with A. brasilense does not affect production components or grain yield of wheat.
- Taxon
- wheatTriticum aestivume2
- Treatment
- inoculation with A.brasilensee2
- Interactor
- A.brasilense
Azospirillum brasilensee2symbiont - Outcome
- production components and grain yielde2
- Direction
- does not affecte2
- Comparator
- without seed inoculatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Singly, inoculation with A.brasilense does not affect production components and grain yield, despite the increase in N content in wheat straw”
e4“with or without seed inoculation with A.brasilense”
Claim · model-written summary
Inoculation with A. brasilense alone was accompanied by increased N content in wheat straw.
- Taxon
- wheatTriticum aestivume2
- Treatment
- inoculation with A.brasilensee2
- Interactor
- A.brasilenseAzospirillum brasilensee2symbiont
- Outcome
- N content in wheat strawe2
- Direction
- increasee2
- Comparator
- without seed inoculatione4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Singly, inoculation with A.brasilense does not affect production components and grain yield, despite the increase in N content in wheat straw”
e4“with or without seed inoculation with A.brasilense”
Claim · model-written summary
Inoculation with A. brasilense combined with 140 kg ha-1 N gave the highest grain yield of irrigated wheat cropped after corn in low-altitude Cerrado.
- Taxon
- wheatTriticum aestivume3
- Treatment
- inoculation with A.brasilense, associated with the application of 140 kg ha-1 Ne3
- Interactor
- A.brasilenseAzospirillum brasilensee3symbiont
- Outcome
- grain yielde3
- Direction
- higheste3
- Setting
- low-altitude Cerradoe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“The inoculation with A.brasilense, associated with the application of 140 kg ha-1 N, provides the highest grain yield of irrigated wheat cropped after corn in low-altitude Cerrado”
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