Paper · 2008 · International Journal of Vegetable Science

Growth, Yield, and Economics of Okra and Amaranth Production Under Irrigation

D. A. Okunade; O. A. Olanusi; K. O. Adekalu

10
claims
16
verbatim quotes
8
citations
1
research areas
—
Not open access

Abstract

Small-scale vegetable growers need investment and cost guidelines for irrigation systems in order to evaluate the economics and profitability of growing crops with irrigation. Growth, yield, and economics of producing okra and amaranth under four irrigation methods—basin, drip, furrow, and sprinkler—were evaluated. The experiment was conducted at the Teaching and Research Farm at Obafemi Awolowo University, Ile-Ife, Nigeria, on a sandy loam soil during the dry season. Plant heights and leaf area index were measured at different stages of plant growth; yield was measured at maturity. Fixed and variable costs of all the methods were estimated using results from field experiments and data collected from 50 farms, as well as from the State Agricultural Development Authority. Economic analyses of crop growth under the four methods were carried out. Results indicated that plants receiving drip and sprinkler irrigation had significantly higher yield than furrow and basin for both amaranth (Amaranthus cruentus L.) and okra [Abelmoschus esculentus (L.) Moench]. However, drip irrigation had higher water use efficiency than the sprinkler system for both crops; for okra, water use efficiency with furrow irrigation was significantly higher than that for basin irrigation. Partial budgeting indicated that all systems were profitable. However, basin irrigation had the least cost-benefit ratio and drip had the highest. Economic analyses indicated that a minimum of a 2½- and 3-year period would be needed to pay off fixed assets for drip irrigation for amaranth and okra, respectively. It is recommended that drip irrigation be used for production of amaranth and okra, especially where labor is neither readily available nor cheap.

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Claims 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Drip and sprinkler irrigation gave significantly higher okra yield than furrow and basin irrigation.

Treatment
drip and sprinkler irrigatione1
Outcome
yielde1
Direction
highere1
Comparator
furrow and basine1
Setting
Ile-Ife, Nigeriae2

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“Results indicated that plants receiving drip and sprinkler irrigation had significantly higher yield than furrow and basin for both amaranth (Amaranthus cruentus L.) and okra [Abelmoschus esculentus (L.) Moench]”

✓ located verbatim in the source · abstract, characters 856–1067 · show in text ↑
e2

“The experiment was conducted at the Teaching and Research Farm at Obafemi Awolowo University, Ile-Ife, Nigeria, on a sandy loam soil during the dry season”

✓ located verbatim in the source · abstract, characters 317–471 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Drip and sprinkler irrigation gave significantly higher amaranth yield than furrow and basin irrigation.

Treatment
drip and sprinkler irrigatione1
Outcome
yielde1
Direction
highere1
Comparator
furrow and basine1
Setting
Ile-Ife, Nigeriae2

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

e1

“Results indicated that plants receiving drip and sprinkler irrigation had significantly higher yield than furrow and basin for both amaranth (Amaranthus cruentus L.) and okra [Abelmoschus esculentus (L.) Moench]”

✓ located verbatim in the source · abstract, characters 856–1067 · show in text ↑
e2

“The experiment was conducted at the Teaching and Research Farm at Obafemi Awolowo University, Ile-Ife, Nigeria, on a sandy loam soil during the dry season”

✓ located verbatim in the source · abstract, characters 317–471 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drip irrigation had higher water use efficiency than sprinkler irrigation for both okra and amaranth.

Treatment
drip irrigatione3
Outcome
water use efficiencye3
Direction
highere3
Comparator
the sprinkler systeme3

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 ↗
Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Okra and Amaranth Production Under Irrigation”

✓ located verbatim in the source · title, characters 32–77 · show in text ↑
e3

“However, drip irrigation had higher water use efficiency than the sprinkler system for both crops”

✓ located verbatim in the source · abstract, characters 1069–1166 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

For okra, water use efficiency under furrow irrigation was significantly higher than under basin irrigation.

Treatment
furrow irrigatione4
Outcome
water use efficiencye4
Direction
highere4
Comparator
basin irrigatione4

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e4

“for okra, water use efficiency with furrow irrigation was significantly higher than that for basin irrigation”

✓ located verbatim in the source · abstract, characters 1168–1277 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

All irrigation systems were profitable for okra and amaranth in partial budgeting.

Outcome
profitablee5

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 ↗
Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Okra and Amaranth Production Under Irrigation”

✓ located verbatim in the source · title, characters 32–77 · show in text ↑
e5

“Partial budgeting indicated that all systems were profitable”

✓ located verbatim in the source · abstract, characters 1279–1339 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Basin irrigation had the least cost-benefit ratio among the irrigation methods for okra and amaranth.

Treatment
basin irrigatione6
Outcome
cost-benefit ratioe6
Direction
leaste6

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 ↗
Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Okra and Amaranth Production Under Irrigation”

✓ located verbatim in the source · title, characters 32–77 · show in text ↑
e6

“basin irrigation had the least cost-benefit ratio and drip had the highest”

✓ located verbatim in the source · abstract, characters 1350–1424 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Drip irrigation had the highest cost-benefit ratio among the irrigation methods for okra and amaranth.

Treatment
dripe6
Outcome
cost-benefit ratioe6
Direction
higheste6

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 ↗
Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

t0

“Okra and Amaranth Production Under Irrigation”

✓ located verbatim in the source · title, characters 32–77 · show in text ↑
e6

“basin irrigation had the least cost-benefit ratio and drip had the highest”

✓ located verbatim in the source · abstract, characters 1350–1424 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Drip irrigation needed a minimum of about 2½ years to pay off fixed assets for amaranth.

Treatment
drip irrigatione7
Outcome
pay off fixed assetse7
Value
2½e7
Qualifier
minimume7

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

e7

“Economic analyses indicated that a minimum of a 2½- and 3-year period would be needed to pay off fixed assets for drip irrigation for amaranth and okra, respectively”

✓ located verbatim in the source · abstract, characters 1426–1591 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Drip irrigation needed a minimum of about 3 years to pay off fixed assets for okra.

Treatment
drip irrigatione7
Outcome
pay off fixed assetse7
Value
3-yeare7
Qualifier
minimume7

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

Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e7

“Economic analyses indicated that a minimum of a 2½- and 3-year period would be needed to pay off fixed assets for drip irrigation for amaranth and okra, respectively”

✓ located verbatim in the source · abstract, characters 1426–1591 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Drip irrigation should be used for production of amaranth and okra, especially where labor is scarce or costly.

Outcome
drip irrigation be used for productione1
Qualifier
especially where labor is neither readily available nor cheape1

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 ↗
Abelmoschus esculentus
Abelmoschus esculentus · TaxonKristine Paulus from New York, United States · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e1

“It is recommended that drip irrigation be used for production of amaranth and okra, especially where labor is neither readily available nor cheap”

✓ located verbatim in the source · abstract, characters 1593–1738 · show in text ↑

irrigation · yield · Amaranthus caudatus (amaranth)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

2 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

1 paper more in this group

See all 5 papers →

irrigation · physiology: water · Abelmoschus esculentus (okra)Positive and negative results

20 papers: 16 positive, 4 negative or no effect

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

  1. negative
  2. negative
  3. negative

16 papers more in this group

See all 20 papers →

irrigation · yield · Abelmoschus esculentus (okra)Positive and negative results

63 papers: 48 positive, 15 negative or no effect

47 papers in the same direction as this paper · 13 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

59 papers more in this group

See all 63 papers →

irrigation · physiology: water · Amaranthus caudatus (amaranth)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 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.