Paper · 1988 · Journal of Agronomy and Crop Science

Evaluation of Different Nitrogen Fertilizer Techniques on Emergence and Growth of Tobacco (Nicotiana tabacum L.) Seedlings

B. Marambe; R. Sangakkara

3
claims
5
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

Abstract The effect of two nitrogen fertilizers applied at preplanting, three weeks after sowing (0.5 %), 6 weeks after sowing (1 %) and as a split application were tested on the emergence and growth of tobacco seedlings. Seedling emergence showed no response to fertilizer applications. The seedling growth was superior when ammonium sulphate was applied at preplanting, when compared to urea. The better growth of tobacco seedlings with a basal application of ammonium sulphate is attributed to the lower concentration of nitrogen which is at a non‐toxic level, and the presence of sulphur in this fertilizer.

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Claims 3

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tobacco seedling emergence showed no response to fertilizer applications.

Organ / stage
Seedlinge0
Treatment
fertilizer applicationse0
Outcome
Seedling emergencee0
Direction
no responsee0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Seedling emergence showed no response to fertilizer applications”

✓ located verbatim in the source · abstract, characters 222–286 · show in text ↑
t0

“Tobacco (Nicotiana tabacum L.) Seedlings”

✓ located verbatim in the source · title, characters 82–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplanting ammonium sulphate produced superior tobacco seedling growth compared with urea.

Organ / stage
seedlinge0
Treatment
ammonium sulphate was applied at preplantinge0
Outcome
seedling growthe0
Direction
superiore0
Comparator
ureae0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The seedling growth was superior when ammonium sulphate was applied at preplanting, when compared to urea”

✓ located verbatim in the source · abstract, characters 288–393 · show in text ↑
t0

“Tobacco (Nicotiana tabacum L.) Seedlings”

✓ located verbatim in the source · title, characters 82–122 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The authors attributed improved tobacco seedling growth under basal ammonium sulphate to its lower non-toxic nitrogen concentration and sulfur content.

Organ / stage
seedlingse0
Treatment
basal application of ammonium sulphatee0
Outcome
better growthe0
Qualifier
lower concentration of nitrogen which is at a non‐toxic level, and the presence of sulphure0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The better growth of tobacco seedlings with a basal application of ammonium sulphate is attributed to the lower concentration of nitrogen which is at a non‐toxic level, and the presence of sulphur in this fertilizer”

✓ located verbatim in the source · abstract, characters 395–610 · show in text ↑

ammonium sulfate · growth · Nicotiana tabacum (tobacco)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · growth · Nicotiana tabacum (tobacco)Positive and negative results

182 papers: 154 positive, 28 negative or no effect

27 papers in the same direction as this paper · 154 in the opposite direction

  1. positive
  2. positive
  3. positive

178 papers more in this group

See all 182 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.