Abstract
Abstract: The objective of this work was to evaluate the morphogenic and structural characteristics of Megathyrsus maximus 'BRS Tamani', subjected to increasing nitrogen doses, as well as the components of its biomass. The experiment was carried out in a randomized complete block design with four treatments (0, 300, 600, and 1,200 kg ha-1 N per year) and three replicates, in 12 experimental units of 12.5 m² each. The evaluations were performed in the rest period of the pasture, after defoliation to a residual leaf area index of 1.0, until the pasture reached the number 3.0 of new leaves produced per tiller. Leaf and stem elongation rates increased with the increment in N doses up to 1,200 kg ha-1 N per year. There was a decreasing linear response for phyllochron and leaf life span. Increases of 704% were observed for the harvestable green leaf biomass, at the dose equivalent to 1,200 kg ha-1 N per year. The biomasses of dead forage and harvestable stem were not affected by the N doses. Nitrogen fertilization shows a positive effect on the morphogenic, structural, and productive characteristics of 'BRS Tamani' guinea grass up to the dose equivalent to 1,200 kg ha-1 N per year.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 4
Claim · model-written summary
Leaf and stem elongation rates increased with nitrogen doses up to 1,200 kg ha-1 N per year.
- Taxon
- guinea grass
.jpg?width=60)
Megathyrsus maximust0 - Material
- BRS Tamanie0
- Treatment
- increment in N dosese1
- Outcome
- Leaf and stem elongation ratese1
- Direction
- increasede1
- Qualifier
- up to 1,200 kg ha-1 N per yeare1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“guinea grass”
e0“Megathyrsus maximus 'BRS Tamani', subjected to increasing nitrogen doses”
e1“Leaf and stem elongation rates increased with the increment in N doses up to 1,200 kg ha-1 N per year”
Claim · model-written summary
Phyllochron and leaf life span decreased linearly with increasing nitrogen doses.
- Taxon
- guinea grassMegathyrsus maximust0
- Treatment
- increasing nitrogen dosese0
- Outcome
- phyllochron and leaf life spane2
- Direction
- decreasinge2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guinea grass”
e0“Megathyrsus maximus 'BRS Tamani', subjected to increasing nitrogen doses”
e2“There was a decreasing linear response for phyllochron and leaf life span”
Claim · model-written summary
Harvestable green leaf biomass increased by 704% at the dose equivalent to 1,200 kg ha-1 N per year.
- Taxon
- guinea grassMegathyrsus maximust0
- Treatment
- dose equivalent to 1,200 kg ha-1 N per yeare3
- Outcome
- harvestable green leaf biomasse3
- Direction
- Increasese3
- Value
- 704%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guinea grass”
e3“Increases of 704% were observed for the harvestable green leaf biomass, at the dose equivalent to 1,200 kg ha-1 N per year”
Claim · model-written summary
Biomass of dead forage and harvestable stem was not affected by nitrogen doses.
- Taxon
- guinea grassMegathyrsus maximust0
- Treatment
- N dosese4
- Outcome
- biomasses of dead forage and harvestable steme4
- Direction
- not affectede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“guinea grass”
e4“The biomasses of dead forage and harvestable stem were not affected by the N doses”
The same questions in other papers
nitrogen · growth · Megathyrsus maximus (Guinea grass)Positive and negative results
14 papers in the same direction as this paper · 1 reporting no difference from an alternative
- positive
- no effect
- positive
12 papers more in this group
See all 16 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.