Paper · 2007 · VTechWorks (Virginia Tech)

Phosphor Rate for Vegetable Grown in the Ultisol - Nanggung, Bogor, Indonesia

Anas D. Susila; Juang Gema Kartika; M.C. Palada

13
claims
26
verbatim quotes
0
citations
1
research areas
✓
Open access

Abstract

Amaranth (Amaranthus sp), Kangkung (Ipomoea aquatica L), Eggplant (Solanum melongena L), Chili (Capsicum annuum L), Tomato (Lycopersicon esculentum Mill), Green Bean (Pahaseolus vulgaris L), and Yard Long Bean (Vigna unguilata L) were grown on Ultisol Nanggung soil with low pH (5.2), low C-Organic (1.70%), very low N-total (0.21 %), low K content (0.33 me/100 g), but high soil P2O5 concentration (10.8 ppm) to optimize P rate application. Treatments were P rate : 0, 45, 90, 135 and 180 kg P2O5ha-1 or equal to 0, 125, 250, 375 and 500 kg SP36 (36% P2O5) ha-1. Treatments were arranged in Randomized Completely Block design with three replications. In the level of soil P concentration of 10.8 ppm (Bray-1) of Ultisol, application of P fertilizer up 180 kg P2O5 ha-1 increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean and increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean. To achieve optimum P fertilizer rate, the range of P rate application needs to be increased.

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Claims 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of kangkung linearly.

Taxon
kangkunge1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of eggplant linearly.

Taxon
eggplantSolanum melongenae1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of chili linearly.

Taxon
chilie1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of tomato linearly.

Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

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

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of yard long bean linearly.

Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

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

Vigna unguiculata subsp. sesquipedalis
Vigna unguiculata subsp. sesquipedalis · TaxonDavid · Public domain · Wikimedia Commons ↗

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased plant height of green bean linearly.

Taxon
green beane1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
plant heighte1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly plant height of kangkung, eggplant, chili, tomato, yard long bean and green bean”

✓ located verbatim in the source · abstract, characters 770–869 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of amaranth linearly.

Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

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

Amaranthus caudatus
Amaranthus caudatus · TaxonTubifex · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of kangkung linearly.

Taxon
kangkunge1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of eggplant linearly.

Taxon
eggplantSolanum melongenae1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

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

Solanum melongena
Solanum melongena · TaxonBeraDigle · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of chili linearly.

Taxon
chilie1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of tomato linearly.

Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

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

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

P fertilizer up to 180 kg P2O5 ha-1 increased yield of green bean linearly.

Taxon
green beane1
Treatment
application of P fertilizer up 180 kg P2O5 ha-1e0
Outcome
yielde1
Direction
increasede1
Qualifier
linearlye1

Not reportedComparator

Verbatim

e0

“application of P fertilizer up 180 kg P2O5 ha-1”

✓ located verbatim in the source · abstract, characters 722–769 · show in text ↑
e1

“increased linearly yield of amaranth, kangkung, eggplant, chili, tomato and green bean”

✓ located verbatim in the source · abstract, characters 874–960 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors conclude that the range of P rates applied needs to be increased to find the optimum P fertilizer rate.

Taxon
Vegetablet0
Outcome
optimum P fertilizer ratee0

Verbatim

t0

“Phosphor Rate for Vegetable”

✓ located verbatim in the source · title, characters 0–27 · show in text ↑
e0

“To achieve optimum P fertilizer rate, the range of P rate application needs to be increased”

✓ located verbatim in the source · abstract, characters 962–1053 · show in text ↑

phosphorus · yield · Capsicum (peppers)Results differ

16 papers: 13 positive, 3 negative or no effect

12 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

12 papers more in this group

See all 16 papers →

fertilization · yield · Amaranthus caudatus (amaranth)Results differ

32 papers: 31 positive, 1 negative or no effect

30 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

28 papers more in this group

See all 32 papers →

phosphorus · growth · Vigna unguiculata (cowpea)Results differ

56 papers: 52 positive, 4 negative or no effect

51 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. no effect

52 papers more in this group

See all 56 papers →

phosphorus · yield · Solanum lycopersicum (tomato)Results differ

101 papers: 80 positive, 21 negative or no effect

79 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

97 papers more in this group

See all 101 papers →

fertilization · yield · Capsicum (peppers)Results differ

163 papers: 152 positive, 11 negative or no effect

151 papers in the same direction as this paper · 9 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

159 papers more in this group

See all 163 papers →

phosphorus · growth · Capsicum (peppers)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

phosphorus · growth · Solanum melongena (eggplant)Positive and negative results

13 papers: 12 positive, 1 negative or no effect

11 papers in the same direction as this paper · 1 in the opposite direction

  1. negative
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

phosphorus · growth · Phaseolus vulgaris (common bean)Positive and negative results

67 papers: 53 positive, 14 negative or no effect

52 papers in the same direction as this paper · 14 in the opposite direction

  1. no effect
  2. negative
  3. negative

63 papers more in this group

See all 67 papers →

8 of 20 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.