Paper · 2009 · World Journal of Agriculture and Soil Science

Effects of planting density and NPK fertilizer application on yield and yield components of tomato (Lycospersicon esculentum Mill) in forest location.

K.E. Law‐Ogbomo; R. K. A. Egharevba

7
claims
14
verbatim quotes
36
citations
1
research areas
—
Not open access

Abstract

2 Abstract: The effect of planting density and NPK 15:15:15 fertilizer application on two cultivars were investigated in two field trials in 2003 and 2004 cropping seasons at Evboneka to determine the optimum planting density and fertilizer rate. Roma VF 3900 and Roma VF 5-80-285 tomato cultivars were grown at three planting densities (33333, 41667 and 55555 plants per hectare) and three levels of NPK fertilizer (0, 200 and 400kg ha ). The trials revealed that a combination of planting density and NPK 15:15:15 fertilizer application 1 increased the productivity of tomato as they positively influenced the plant height at maturity, days to 50% flowering, fruit yield and % marketable yield. However, the treatment combinations do not significantly affect days to flowering. The plots without fertilizer application had the least values in all the measured parameters. However, as fertilizer application rate increases, all measured parameters also increased up to the highest level. From the trials, a combination of 55555 plants per hectare and 400kg NPK ha gave the highest significant yield 1 of 38.90t ha and 35 t ha from Roma VF 3900 and Roma VF 5-80-285, respectively. The highest % marketable 11 yield was also obtained from the same combination with both cultivars.

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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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Density and fertilizer combinations positively influenced height, fruit yield and marketable yield.

Treatment
combination of planting density and NPK 15:15:15 fertilizer applicatione0
Outcome
plant height at maturity, days to 50% flowering, fruit yield and % marketable yielde0
Direction
positively influencede0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a combination of planting density and NPK 15:15:15 fertilizer application 1 increased the productivity of tomato as they positively influenced the plant height at maturity, days to 50% flowering, fruit yield and % marketable yield.”

✓ located verbatim in the source · abstract, characters 465–696 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Treatment combinations did not significantly affect days to flowering.

Treatment
treatment combinationse0
Outcome
days to floweringe0
Direction
do not significantly affecte0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“the treatment combinations do not significantly affect days to flowering.”

✓ located verbatim in the source · abstract, characters 706–779 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unfertilized plots had the lowest values across measured traits.

Treatment
without fertilizer applicatione0
Outcome
all the measured parameterse0
Direction
least valuese0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The plots without fertilizer application had the least values in all the measured parameters.”

✓ located verbatim in the source · abstract, characters 780–873 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Measured parameters rose as fertilizer rate increased.

Treatment
fertilizer application ratee0
Outcome
all measured parameterse0
Direction
increasede0

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“as fertilizer application rate increases, all measured parameters also increased up to the highest level.”

✓ located verbatim in the source · abstract, characters 883–988 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At the highest density and fertilizer combination, Roma VF 3900 yielded 38.90t ha.

Material
Roma VF 3900e0
Treatment
55555 plants per hectare and 400kg NPK hae0
Outcome
yielde0
Direction
higheste0
Value
38.90t hae0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a combination of 55555 plants per hectare and 400kg NPK ha gave the highest significant yield 1 of 38.90t ha and 35 t ha from Roma VF 3900 and Roma VF 5-80-285, respectively.”

✓ located verbatim in the source · abstract, characters 1006–1180 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At the highest density and fertilizer combination, Roma VF 5-80-285 yielded 35 t ha.

Material
Roma VF 5-80-285e0
Treatment
55555 plants per hectare and 400kg NPK hae0
Outcome
yielde0
Direction
higheste0
Value
35 t hae0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“a combination of 55555 plants per hectare and 400kg NPK ha gave the highest significant yield 1 of 38.90t ha and 35 t ha from Roma VF 3900 and Roma VF 5-80-285, respectively.”

✓ located verbatim in the source · abstract, characters 1006–1180 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same density and fertilizer combination gave the highest marketable yield in both cultivars.

Treatment
55555 plants per hectare and 400kg NPK hae1
Outcome
% marketable 11 yielde0
Direction
higheste0

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest % marketable 11 yield was also obtained from the same combination with both cultivars.”

✓ located verbatim in the source · abstract, characters 1181–1279 · show in text ↑
e1

“a combination of 55555 plants per hectare and 400kg NPK ha”

✓ located verbatim in the source · abstract, characters 1006–1064 · show in text ↑
t0

“tomato”

✓ located verbatim in the source · title, characters 92–98 · show in text ↑

density · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

14 papers: 11 positive, 3 negative or no effect

10 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. negative
  3. no effect

10 papers more in this group

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fertilization · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results

111 papers: 90 positive, 21 negative or no effect

89 papers in the same direction as this paper · 17 in the opposite direction · 4 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

107 papers more in this group

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fertilization · yield · Solanum lycopersicum (tomato)Positive and negative results

978 papers: 850 positive, 128 negative or no effect

849 papers in the same direction as this paper · 104 in the opposite direction · 24 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

974 papers more in this group

See all 978 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.