Paper · 2024 · GSC Biological and Pharmaceutical Sciences

Evaluation of the performance of three barley varieties under the influence of nitrogen fertilizer

Raad Ahmed Hameed; Husham Abdul-Rahman Ahmed; Jasim Abdullah Hayawi

4
claims
8
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

The study was conducted in the fields of the Department of Agricultural Research / Nineveh during the season. (2023 - 2024). Research included two factors: first: nitrogen fertilizer (fertilized, non-fertilized). Second factor: barley varieties (Rehan, Samir, Amal). The study utilized a completely randomized block design. The global experimental system with three replicates was conducted at the end of the season . The data was analyzed using the SAS program on a computer, with different averages marked with different alphabets, and the results were as follows: The nitrogen fertilizer treatment demonstrated a significant improvement over the non-fertilized. The treatment focuses on average traits. (plant height, spike length, number of spikes m-2, weight of 1000 grains, and grain yield). The Samir barley variety was significantly superior to the rest of the varieties in terms of characteristics (plant height, 1000 grain weight, and grain yield). The interaction between nitrogen fertilizer treatment and the barley variety Samir demonstrated significant superiority in all studied traits. The aim of the research is to determine the response of the three best varieties to nitrogen fertilizer in terms of growth and productivity.

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

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer significantly improved plant height, spike length and number of spikes per square metre compared with non-fertilized barley.

Treatment
nitrogen fertilizere1
Outcome
plant height, spike length, number of spikes m-2e1
Direction
significant improvemente1
Comparator
non-fertilizede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“performance of three barley varieties”

✓ located verbatim in the source · title, characters 18–55 · show in text ↑
e1

“The nitrogen fertilizer treatment demonstrated a significant improvement over the non-fertilized. The treatment focuses on average traits. (plant height, spike length, number of spikes m-2, weight of 1000 grains, and grain yield)”

✓ located verbatim in the source · abstract, characters 567–796 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer significantly improved weight of 1000 grains and grain yield compared with non-fertilized barley.

Treatment
nitrogen fertilizere1
Outcome
weight of 1000 grains, and grain yielde1
Direction
significant improvemente1
Comparator
non-fertilizede1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“performance of three barley varieties”

✓ located verbatim in the source · title, characters 18–55 · show in text ↑
e1

“The nitrogen fertilizer treatment demonstrated a significant improvement over the non-fertilized. The treatment focuses on average traits. (plant height, spike length, number of spikes m-2, weight of 1000 grains, and grain yield)”

✓ located verbatim in the source · abstract, characters 567–796 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The Samir barley variety was significantly superior to the other varieties in plant height, 1000 grain weight and grain yield.

Material
Samire2
Outcome
plant height, 1000 grain weight, and grain yielde2
Direction
superiore2
Comparator
the rest of the varietiese2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“performance of three barley varieties”

✓ located verbatim in the source · title, characters 18–55 · show in text ↑
e2

“The Samir barley variety was significantly superior to the rest of the varieties in terms of characteristics (plant height, 1000 grain weight, and grain yield)”

✓ located verbatim in the source · abstract, characters 798–957 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The interaction of nitrogen fertilizer and the Samir variety was significantly superior in all studied traits.

Material
Samire3
Treatment
nitrogen fertilizere3
Outcome
all studied traitse3
Direction
significant superioritye3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“performance of three barley varieties”

✓ located verbatim in the source · title, characters 18–55 · show in text ↑
e3

“The interaction between nitrogen fertilizer treatment and the barley variety Samir demonstrated significant superiority in all studied traits”

✓ located verbatim in the source · abstract, characters 959–1100 · show in text ↑

fertilization · yield · Hordeum vulgare (barley)Positive and negative results

550 papers: 473 positive, 77 negative or no effect

472 papers in the same direction as this paper · 66 in the opposite direction · 11 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

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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.