Paper · 2013 · International Research Journal of Agriculture and Soil Science

Cost-benefit analysis of melon (egusi) seed and seed-oil yield responses to phosphorus fertilizer application

O. J. Ayodele; O. S. Shittu

10
claims
18
verbatim quotes
10
citations
2
research areas
—
Not open access

Abstract

Seed and seed-oil yield of melon (egusi), relevant to farmers’ economic well-being and poverty alleviation, were significantly increased by phosphorus (P) fertilizer application in trials conducted at Ado Ekiti, Nigeria during the early and late seasons of 2008 and 2009. The optimum application rate was 20 kg P.ha-1 which increased the two-year average seed yield, oil content and seed-oil yield over the control (0 kg P.ha-1) treatment by 65.6, 23.0 and 126.2%, respectively. Cost-benefit analysis of seed yield and seed-oil yield responses to P application gave highest Value-Cost ratio (VCR) at 20 kg P.ha-1 in 2008 and at 10 kg P.ha-1 in 2009 as rising costs at higher rates reduced the profit margins. VCR reduced at the unsubsidized prices of the single superphosphate fertilizer for each P rate which justifies the retention of fertilizer subsidy for egusi production. The 40kg P.ha-1 rate gave highest seedoil yield but profit was maximized at the 20kg P.ha-1 which should be recommended as the economic rate for melon (egusi) production.

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Claims 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Phosphorus fertilizer significantly increased seed and seed-oil yield.

Taxon
melon (egusi)Cucumis meloe0
Treatment
phosphorus (P) fertilizer applicatione0
Outcome
Seed and seed-oil yielde0
Direction
increasede0
Setting
Ado Ekiti, Nigeriae0

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Seed and seed-oil yield of melon (egusi), relevant to farmers’ economic well-being and poverty alleviation, were significantly increased by phosphorus (P) fertilizer application in trials conducted at Ado Ekiti, Nigeria during the early and late seasons of 2008 and 2009”

✓ located verbatim in the source · abstract, characters 0–270 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 20 kg P.ha-1, average seed yield increased 65.6% over control.

Taxon
melon (egusi)Cucumis melot0
Treatment
20 kg P.ha-1e0
Outcome
seed yielde0
Direction
increasede0
Value
65.6e0
Comparator
control (0 kg P.ha-1)e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The optimum application rate was 20 kg P.ha-1 which increased the two-year average seed yield, oil content and seed-oil yield over the control (0 kg P.ha-1) treatment by 65.6, 23.0 and 126.2%, respectively”

✓ located verbatim in the source · abstract, characters 272–477 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 20 kg P.ha-1, oil content increased 23.0% over control.

Taxon
melon (egusi)Cucumis melot0
Treatment
20 kg P.ha-1e0
Outcome
oil contente0
Direction
increasede0
Value
23.0e0
Comparator
control (0 kg P.ha-1)e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The optimum application rate was 20 kg P.ha-1 which increased the two-year average seed yield, oil content and seed-oil yield over the control (0 kg P.ha-1) treatment by 65.6, 23.0 and 126.2%, respectively”

✓ located verbatim in the source · abstract, characters 272–477 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 20 kg P.ha-1, seed-oil yield increased 126.2% over control.

Taxon
melon (egusi)Cucumis melot0
Treatment
20 kg P.ha-1e0
Outcome
seed-oil yielde0
Direction
increasede0
Value
126.2%e0
Comparator
control (0 kg P.ha-1)e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The optimum application rate was 20 kg P.ha-1 which increased the two-year average seed yield, oil content and seed-oil yield over the control (0 kg P.ha-1) treatment by 65.6, 23.0 and 126.2%, respectively”

✓ located verbatim in the source · abstract, characters 272–477 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Value-Cost ratio was highest at 20 kg P.ha-1 in 2008.

Taxon
melon (egusi)Cucumis melot0
Outcome
Value-Cost ratio (VCR)e0
Direction
higheste0
Value
20 kg P.ha-1e0
Qualifier
2008e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Cost-benefit analysis of seed yield and seed-oil yield responses to P application gave highest Value-Cost ratio (VCR) at 20 kg P.ha-1 in 2008”

✓ located verbatim in the source · abstract, characters 479–620 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Value-Cost ratio was highest at 10 kg P.ha-1 in 2009.

Taxon
melon (egusi)Cucumis melot0
Outcome
profit marginse0
Direction
reducede0
Value
10 kg P.ha-1e0
Qualifier
2009e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“at 10 kg P.ha-1 in 2009 as rising costs at higher rates reduced the profit margins”

✓ located verbatim in the source · abstract, characters 625–707 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Unsubsidized fertilizer prices reduced Value-Cost ratio at every phosphorus rate.

Taxon
melon (egusi)Cucumis melot0
Outcome
VCRe0
Direction
reducede0
Qualifier
unsubsidized pricese0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“VCR reduced at the unsubsidized prices of the single superphosphate fertilizer for each P rate”

✓ located verbatim in the source · abstract, characters 709–803 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 40kg P.ha-1 rate gave the highest seedoil yield.

Taxon
melon (egusi)Cucumis melot0
Treatment
40kg P.ha-1e0
Outcome
seedoil yielde0
Direction
higheste0

Not reportedComparator

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The 40kg P.ha-1 rate gave highest seedoil yield”

✓ located verbatim in the source · abstract, characters 878–925 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Profit was maximized at 20kg P.ha-1.

Taxon
melon (egusi)Cucumis melot0
Outcome
profite0
Direction
maximizede0
Value
20kg P.ha-1e0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“profit was maximized at the 20kg P.ha-1”

✓ located verbatim in the source · abstract, characters 930–969 · show in text ↑
t0

“melon (egusi)”

✓ located verbatim in the source · title, characters 25–38 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommend 20kg P.ha-1 as the economic rate.

Taxon
melon (egusi)Cucumis meloe0
Outcome
20kg P.ha-1e0
Qualifier
economic ratee0

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

Cucumis melo
Cucumis melo · TaxonUSDA photo by Scott Bauer. Image Number K7355-11. · Public domain · Wikimedia Commons ↗

Verbatim

e0

“20kg P.ha-1 which should be recommended as the economic rate for melon (egusi) production”

✓ located verbatim in the source · abstract, characters 958–1047 · show in text ↑

fertilization · yield · Cucumis melo (muskmelon)Results differ

95 papers: 72 positive, 23 negative or no effect

71 papers in the same direction as this paper · 18 in the opposite direction · 5 reporting no difference from an alternative

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

91 papers more in this group

See all 95 papers →

phosphorus · yield · Cucumis melo (muskmelon)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

3 papers more in this group

See all 7 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.