Paper · 2025 · Advances in Agriculture

The Response of Tomato ( Lycopersicon esculentum Mill.) Varieties to Different Rates of Blended NPS Fertilizer at Wolaita Sodo University, Ethiopia

Tamirat Temesgen; Shumbulo Abrham; Laekemariam Fanuel

12
claims
15
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

Tomato is one of the vital vegetable crops cultivated in Wolaita, southern Ethiopia, for domestic utilization and income generation. Its productivity is challenged mainly by the lack of well‐adapted varieties and feasible fertilizer rates. Therefore, field research was conducted at Wolaita Sodo University to evaluate the response of tomato varieties to blended nitrogen, phosphorus, and sulfur (NPS) fertilizer rates and to determine economically feasible NPS rates for tomato production during the 2021/2022 cropping seasons. Three tomato varieties (AVTO 0301, AVTO 1314, and AVTO 1464) and five NPS fertilizer rates (0, 75,150, 225, and 300 kg/ha) were treatments and laid out in a randomized complete block design (RCBD) in three replications. Growth, phenology, and yield data were collected and analyzed by the Stata 10 software. The result showed that application of 300 kg/ha NPS had delayed days to flowering (55.11 days), increased plant height (80.8 cm), and fruit width (60.03 mm). The maximum number of the primary branches (8.68), fruit number (50.87), marketable fruit/ha (31.48 t), and total fruit/ha (33.50 t) were obtained by 300 kg/ha NPS fertilizers with AVTO 0301 followed by AVTO 1314 variety using 150 kg/ha NPS with marketable and total fruit of (26.91 and 28.94 t/ha), respectively. Economic analysis indicated that 300 kg/ha NPS fertilizers with AVTO 0301 variety gave the maximum net return of birr 733,412ETB with marginal rate of return (MRR; 244.45%). Therefore, it can be concluded that the use of 300 kg/ha NPS fertilizer with AVTO 0301 variety was found to be economically feasible for tomato production in the Wolaita area.

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Claims 12

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

300 kg/ha NPS delayed tomato flowering to 55.11 days.

Treatment
300 kg/ha NPSe0
Outcome
days to floweringe0
Direction
delayede0
Value
55.11 dayse0

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 300 kg/ha NPS had delayed days to flowering (55.11 days)”

✓ located verbatim in the source · abstract, characters 860–931 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 kg/ha NPS increased tomato plant height to 80.8 cm.

Treatment
300 kg/ha NPSe0
Outcome
plant heighte0
Direction
increasede0
Value
80.8 cme0

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 300 kg/ha NPS had delayed days to flowering (55.11 days), increased plant height (80.8 cm)”

✓ located verbatim in the source · abstract, characters 860–965 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

300 kg/ha NPS increased tomato fruit width to 60.03 mm.

Treatment
300 kg/ha NPSe0
Outcome
fruit widthe0
Direction
increasede0
Value
60.03 mme0

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 300 kg/ha NPS had delayed days to flowering (55.11 days), increased plant height (80.8 cm), and fruit width (60.03 mm)”

✓ located verbatim in the source · abstract, characters 860–993 · show in text ↑
t0

“Tomato”

✓ located verbatim in the source · title, characters 16–22 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS had a maximum of 8.68 primary branches.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
number of the primary branchese0
Direction
maximume0
Value
8.68e0

Not reportedTaxonComparator

Verbatim

e0

“The maximum number of the primary branches (8.68), fruit number (50.87), marketable fruit/ha (31.48 t), and total fruit/ha (33.50 t) were obtained by 300 kg/ha NPS fertilizers with AVTO 0301”

✓ located verbatim in the source · abstract, characters 995–1185 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS had a maximum fruit number of 50.87.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
fruit numbere0
Direction
maximume0
Value
50.87e0

Not reportedTaxonComparator

Verbatim

e0

“The maximum number of the primary branches (8.68), fruit number (50.87), marketable fruit/ha (31.48 t), and total fruit/ha (33.50 t) were obtained by 300 kg/ha NPS fertilizers with AVTO 0301”

✓ located verbatim in the source · abstract, characters 995–1185 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS had maximum marketable fruit yield of 31.48 t.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
marketable fruit/hae0
Direction
maximume0
Value
31.48 te0

Not reportedTaxonComparator

Verbatim

e0

“The maximum number of the primary branches (8.68), fruit number (50.87), marketable fruit/ha (31.48 t), and total fruit/ha (33.50 t) were obtained by 300 kg/ha NPS fertilizers with AVTO 0301”

✓ located verbatim in the source · abstract, characters 995–1185 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS had maximum total fruit yield of 33.50 t.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
total fruit/hae0
Direction
maximume0
Value
33.50 te0

Not reportedTaxonComparator

Verbatim

e0

“The maximum number of the primary branches (8.68), fruit number (50.87), marketable fruit/ha (31.48 t), and total fruit/ha (33.50 t) were obtained by 300 kg/ha NPS fertilizers with AVTO 0301”

✓ located verbatim in the source · abstract, characters 995–1185 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 1314 with 150 kg/ha NPS produced 26.91 t/ha marketable fruit.

Material
AVTO 1314e0
Treatment
150 kg/ha NPSe0
Outcome
marketable and total fruite0
Value
26.91e0

Not reportedTaxon

Verbatim

e0

“AVTO 1314 variety using 150 kg/ha NPS with marketable and total fruit of (26.91 and 28.94 t/ha)”

✓ located verbatim in the source · abstract, characters 1198–1293 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 1314 with 150 kg/ha NPS produced 28.94 t/ha total fruit.

Material
AVTO 1314e0
Treatment
150 kg/ha NPSe0
Outcome
total fruite0
Value
28.94 t/hae0

Not reportedTaxon

Verbatim

e0

“AVTO 1314 variety using 150 kg/ha NPS with marketable and total fruit of (26.91 and 28.94 t/ha)”

✓ located verbatim in the source · abstract, characters 1198–1293 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS gave the maximum net return of birr 733,412ETB.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
net returne0
Direction
maximume0
Value
birr 733,412ETBe0

Not reportedTaxon

Verbatim

e0

“300 kg/ha NPS fertilizers with AVTO 0301 variety gave the maximum net return of birr 733,412ETB”

✓ located verbatim in the source · abstract, characters 1342–1437 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

AVTO 0301 with 300 kg/ha NPS gave a marginal rate of return of 244.45%.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizerse0
Outcome
marginal rate of returne0
Value
244.45%e0

Not reportedTaxon

Verbatim

e0

“300 kg/ha NPS fertilizers with AVTO 0301 variety gave the maximum net return of birr 733,412ETB with marginal rate of return (MRR; 244.45%)”

✓ located verbatim in the source · abstract, characters 1342–1481 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors found 300 kg/ha NPS with AVTO 0301 economically feasible for tomato production in Wolaita.

Material
AVTO 0301e0
Treatment
300 kg/ha NPS fertilizere0
Outcome
economically feasiblee0
Setting
Wolaita areae0

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 use of 300 kg/ha NPS fertilizer with AVTO 0301 variety was found to be economically feasible for tomato production in the Wolaita area”

✓ located verbatim in the source · abstract, characters 1519–1657 · show in text ↑

sulfur atom · yield · Solanum lycopersicum (tomato)Positive and negative results

9 papers: 6 positive, 3 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

5 papers more in this group

See all 9 papers →

sulfur atom · quality: postharvest · Solanum lycopersicum (tomato)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

sulfur atom · growth · Solanum lycopersicum (tomato)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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. positive
  2. no effect
  3. negative

97 papers more in this group

See all 101 papers →

phosphorus · phenology · Solanum lycopersicum (tomato)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

5 in the opposite direction

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

nitrogen · phenology · Solanum lycopersicum (tomato)Positive and negative results

13 papers: 8 positive, 5 negative or no effect

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

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

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

16 papers: 12 positive, 4 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

12 papers more in this group

See all 16 papers →

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

34 papers: 22 positive, 12 negative or no effect

21 papers in the same direction as this paper · 12 in the opposite direction

  1. no effect
  2. negative
  3. negative

30 papers more in this group

See all 34 papers →

8 of 14 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.