Abstract
The high cost and the low efficiency of fertilizers, especially nitrogen (N), are of major concerns in agriculture. This study aimed to evaluate the effect of N fertilizers sources in Urochloa brizantha cv. Marandu (palisade grass). The study was conducted in Cerrado of Brazil to evaluate dry-matter yield (DMY), recovery of applied N (RAN), N use efficiency (NUE), and chemical composition of palisade grass in response to sources of N (ammonium nitrate, ammonium sulfate, ammonium sulfate-nitrate, urea, urea with urease inhibitor, polymer-coated urea, and control) in seven harvests (100 kg ha -1 N were applied after each harvest). The N fertilization increased DMY and growth of palisade grass compared to control (without N fertilization). However, there was not any difference in DMY due to N sources. Application of ammonium sulfate-nitrate increased RAN. The urea, urea with urease inhibitor, and polymercoated urea improved NUE. Concentration of neutral detergent fiber (NDF) was decreased, while concentrations of acid detergent fiber (ADF) and cellulose were not affected by the fertilizers. Crude protein (CP) content was increased with N supply, but CP fractions A and B were not changed, except in the fifth period of growth. The results indicated protected fertilizers (ammonium sulfate-nitrate, urea with urease inhibitor, and polymer-coated urea) are more recommended for the cultivation of palisade grass in the Cerrado biome of Brazil.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 11
Claim · model-written summary
Nitrogen fertilization increased palisade grass dry matter yield and growth over the unfertilized control.
- Taxon
- palisade grass
Urochloa brizanthae0 - Treatment
- N fertilizatione0
- Outcome
- DMY and growthe0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The N fertilization increased DMY and growth of palisade grass compared to control (without N fertilization).”
Claim · model-written summary
Dry matter yield did not differ by nitrogen source.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- N sourcese0
- Outcome
- DMYe0
- Direction
- not any differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was not any difference in DMY due to N sources.”
t0“palisade grass”
Claim · model-written summary
Ammonium sulfate-nitrate increased recovery of applied nitrogen.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- ammonium sulfate-nitratee0
- Outcome
- RANe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of ammonium sulfate-nitrate increased RAN.”
t0“palisade grass”
Claim · model-written summary
Urea improved nitrogen use efficiency.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- ureae0
- Outcome
- NUEe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The urea, urea with urease inhibitor, and polymercoated urea improved NUE.”
t0“palisade grass”
Claim · model-written summary
Urea with urease inhibitor improved nitrogen use efficiency.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- urea with urease inhibitore0
- Outcome
- NUEe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The urea, urea with urease inhibitor, and polymercoated urea improved NUE.”
t0“palisade grass”
Claim · model-written summary
Polymercoated urea improved nitrogen use efficiency.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- polymercoated ureae0
- Outcome
- NUEe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The urea, urea with urease inhibitor, and polymercoated urea improved NUE.”
t0“palisade grass”
Claim · model-written summary
Fertilizers decreased neutral detergent fiber concentration.
- Taxon
- palisade grassUrochloa brizanthat0
- Outcome
- Concentration of neutral detergent fiber (NDF)e0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentration of neutral detergent fiber (NDF) was decreased”
t0“palisade grass”
Claim · model-written summary
Fertilizers did not affect acid detergent fiber or cellulose concentrations.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- fertilizerse0
- Outcome
- concentrations of acid detergent fiber (ADF) and cellulosee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“concentrations of acid detergent fiber (ADF) and cellulose were not affected by the fertilizers.”
t0“palisade grass”
Claim · model-written summary
Nitrogen supply increased crude protein content.
- Taxon
- palisade grassUrochloa brizanthat0
- Treatment
- N supplye0
- Outcome
- Crude protein (CP) contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Crude protein (CP) content was increased with N supply”
t0“palisade grass”
Claim · model-written summary
Crude protein fractions A and B were unchanged except during the fifth growth period.
- Taxon
- palisade grassUrochloa brizanthat0
- Outcome
- CP fractions A and Be0
- Direction
- not changede0
- Qualifier
- except in the fifth period of growthe0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CP fractions A and B were not changed, except in the fifth period of growth.”
t0“palisade grass”
Claim · model-written summary
The authors recommend protected fertilizers for palisade grass cultivation in the Cerrado.
- Taxon
- palisade grassUrochloa brizanthae0
- Outcome
- protected fertilizers (ammonium sulfate-nitrate, urea with urease inhibitor, and polymer-coated urea) are more recommendede0
- Setting
- Cerrado biome of Brazile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“protected fertilizers (ammonium sulfate-nitrate, urea with urease inhibitor, and polymer-coated urea) are more recommended for the cultivation of palisade grass in the Cerrado biome of Brazil.”
The same questions in other papers
fertilization · quality: grain · Urochloa brizantha (palisade grass)Results differ
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →nitrogen · nutrient: efficiency · Urochloa brizantha (palisade grass)Positive and negative results
2 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
fertilization · yield · Urochloa brizantha (palisade grass)Positive and negative results
17 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- no effect
- no effect
19 papers more in this group
See all 23 papers →nitrogen · quality: protein · Urochloa brizantha (palisade grass)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.