Paper · 2012 · Turang feiliao

Effect of NPK rate on growth,development and nutrient absorption of flue-cured tobacco

Minglei Li

9
claims
17
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

The tobacco agronomic traits and N,P,K content of different treatment and tobacco yield,percentages of high quality leaves were studied.The results showed that different levels of N,P,K fertilization took effect on tobacco agronomic traits,the impact was N greater than K and greater than P,considering yield and high quality leaves,N2P2K2 was the best fertilization rate,the percentages of high quality leaves decreased whenever N,P or K lack or shortage.Application of appropriate nitrogen was in favor of N and K assimilate,whereas the K content decreased to the extent of 11% at N3 level.The N and K content also decreased at high or low P level.K and N content were improved to the highest extent of 37% as potassium fertilization increasing.With the more nitrogen applying,the nitrogen agronomy use efficiency of fine grade cured leaf decreasing distinctly,whereas phosphorus and potassium agronomy use efficiency increasing to a certain extent.

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Claims 9

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen had greater influence on tobacco agronomic traits than potassium, which exceeded phosphorus.

Outcome
tobacco agronomic traitse0
Direction
greatere0

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

“different levels of N,P,K fertilization took effect on tobacco agronomic traits,the impact was N greater than K and greater than P”

✓ located verbatim in the source · abstract, characters 160–290 · show in text ↑
Observationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

N2P2K2 was the best fertilization rate for yield and high-quality leaves.

Treatment
N2P2K2e0
Outcome
best fertilization ratee0
Direction
beste0

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

“considering yield and high quality leaves,N2P2K2 was the best fertilization rate”

✓ located verbatim in the source · abstract, characters 291–371 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

N, P or K deficiency decreased the share of high-quality leaves.

Treatment
N,P or K lack or shortagee0
Outcome
percentages of high quality leavese0
Direction
decreasede0

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

“the percentages of high quality leaves decreased whenever N,P or K lack or shortage”

✓ located verbatim in the source · abstract, characters 372–455 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Appropriate nitrogen favored nitrogen and potassium assimilation.

Treatment
Application of appropriate nitrogene0
Outcome
N and K assimilatee0
Direction
in favor ofe0

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

“Application of appropriate nitrogen was in favor of N and K assimilate”

✓ located verbatim in the source · abstract, characters 456–526 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Potassium content decreased 11% at N3.

Treatment
N3 levele0
Outcome
K contente0
Direction
decreasede0
Value
11%e0

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

“the K content decreased to the extent of 11% at N3 level”

✓ located verbatim in the source · abstract, characters 535–591 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen and potassium content decreased at high or low phosphorus levels.

Treatment
high or low P levele0
Outcome
N and K contente0
Direction
decreasede0

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

“The N and K content also decreased at high or low P level”

✓ located verbatim in the source · abstract, characters 592–649 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing potassium fertilization improved potassium and nitrogen content by as much as 37%.

Treatment
potassium fertilization increasinge0
Outcome
K and N contente0
Direction
improvede0
Value
37%e0

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

“K and N content were improved to the highest extent of 37% as potassium fertilization increasing”

✓ located verbatim in the source · abstract, characters 650–746 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing nitrogen distinctly decreased nitrogen agronomic use efficiency for fine-grade cured leaf.

Treatment
more nitrogen applyinge0
Outcome
nitrogen agronomy use efficiency of fine grade cured leafe0
Direction
decreasinge0

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

“With the more nitrogen applying,the nitrogen agronomy use efficiency of fine grade cured leaf decreasing distinctly”

✓ located verbatim in the source · abstract, characters 747–862 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing nitrogen increased phosphorus and potassium agronomic use efficiency to some extent.

Treatment
more nitrogen applyinge0
Outcome
phosphorus and potassium agronomy use efficiencye0
Direction
increasinge0

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

“With the more nitrogen applying,the nitrogen agronomy use efficiency of fine grade cured leaf decreasing distinctly,whereas phosphorus and potassium agronomy use efficiency increasing to a certain extent”

✓ located verbatim in the source · abstract, characters 747–950 · show in text ↑
t0

“tobacco”

✓ located verbatim in the source · title, characters 79–86 · show in text ↑

phosphorus · nutrient: content · Nicotiana tabacum (tobacco)Positive and negative results

11 papers: 9 positive, 2 negative or no effect

1 paper in the same direction as this paper · 9 in the opposite direction

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

nitrogen · quality: general · Nicotiana tabacum (tobacco)Positive and negative results

39 papers: 28 positive, 11 negative or no effect

10 papers in the same direction as this paper · 28 in the opposite direction

  1. positive
  2. positive
  3. positive

35 papers more in this group

See all 39 papers →

fertilization · nutrient: content · Nicotiana tabacum (tobacco)Positive and negative results

100 papers: 92 positive, 8 negative or no effect

91 papers in the same direction as this paper · 8 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

96 papers more in this group

See all 100 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.