Paper · 2025 · American Journal of Bioscience and Bioengineering

Response of Sweet Potato (Ipomoea Batatas L.) Variety to Nitrogen and Farmyard Manure Fertilizer Application in Mulo District, Ethiopia

Alemu Deme; Biratu Erandufa

18
claims
40
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

A field experiment was carried out during the 2020–2021 growing season to examine how the sweet potato responded to various doses of organic and inorganic fertilizer. The treatment included three levels of farmyard waste and four levels of nitrogen fertilizers (0, 40, 70, and 100 kg N ha-1) (0, 5and 10 FYM t ha-1). The experiment was performed three times and set up using a Randomized Complete Block Design in a factorial layout. Software called SAS (version 9.3) was used to examine the data. The findings showed that the majority of the growth, yield, and yield components were significantly (P 0.01) impacted by the application of N and farmyard manure fertilizers. The highest and lowest vine lengths measured were 160.23 and 112.17 cm, respectively. Other measurements included shoot fresh weight (1009.6 and 109.8 g hill-1), shoot dry weight (141.35 and 61.6 g hill-1), days of bud sprouting (13.27 and 6.34), days of physiological maturity (147.8 and 119), number of branches per plant (7.30 and 4.28), harvest index (0.36 and 0.28%), biomass yield (1009.2 and 579.7), tuberous storage tuber diameter (22.5 and 15.6 cm), total tuber yield (22.45 and 7.05 tha-1), marketable tuber yield (21.85 and 7.65 tha-1), unmarketable tuber yield (3.25 and 0.31 t/ha), marketable storage tuber number (3.2 and 0.83), and un marketable tuber number (0.38 and 0.02) were obtained from 10t ha-1farmyard manure plus 100 kgha-1 N fertilizer. However, the above-mentioned factors were countered by the number of branches per plant, the quantity of unmarketable tubers, and the yield of unmarketable tubers. In conclusion, the findings showed that the application of inorganic nitrogen fertilizer along with farmyard manure might improve the growth, production, and yield components of sweet potatoes. To get more trustworthy data, though, additional research must be done in various environments and at various times of the year while taking fertilizer rates for nitrogen and FYM into account.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

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Claims 18

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen and farmyard manure fertilizer application significantly impacted growth, yield and yield components.

Taxon
Sweet PotatoIpomoea batatast0
Treatment
application of N and farmyard manure fertilizerse1
Outcome
growth, yield, and yield componentse1
Setting
fielde0

Not reportedComparatorDirection

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e0

“A field experiment was carried out during the 2020–2021 growing season to examine how the sweet potato responded to various doses of organic and inorganic fertilizer”

✓ located verbatim in the source · abstract, characters 0–165 · show in text ↑
e1

“The findings showed that the majority of the growth, yield, and yield components were significantly (P 0.01) impacted by the application of N and farmyard manure fertilizers”

✓ located verbatim in the source · abstract, characters 519–692 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Vine lengths were 160.23 cm at the highest and 112.17 cm at the lowest level.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
vine lengthse2
Value
160.23 and 112.17 cme2
Qualifier
highest and loweste2

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e2

“The highest and lowest vine lengths measured were 160.23 and 112.17 cm, respectively”

✓ located verbatim in the source · abstract, characters 694–778 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Shoot fresh weight was 1009.6 and 109.8 g per hill at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
shoot fresh weighte3
Value
1009.6 and 109.8 ge3

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e3

“Other measurements included shoot fresh weight (1009.6 and 109.8 g hill”

✓ located verbatim in the source · abstract, characters 780–851 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Shoot dry weight was 141.35 and 61.6 g per hill at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
shoot dry weighte4
Value
141.35 and 61.6 ge4

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e4

“shoot dry weight (141.35 and 61.6 g hill”

✓ located verbatim in the source · abstract, characters 867–907 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Days of bud sprouting were 13.27 and 6.34 at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
days of bud sproutinge5
Value
13.27 and 6.34e5

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e5

“days of bud sprouting (13.27 and 6.34)”

✓ located verbatim in the source · abstract, characters 923–961 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Days of physiological maturity were 147.8 and 119 at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
days of physiological maturitye6
Value
147.8 and 119e6

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e6

“days of physiological maturity (147.8 and 119)”

✓ located verbatim in the source · abstract, characters 963–1009 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Number of branches per plant was 7.30 and 4.28 at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
number of branches per plante7
Value
7.30 and 4.28e7

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e7

“number of branches per plant (7.30 and 4.28)”

✓ located verbatim in the source · abstract, characters 1011–1055 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Harvest index was 0.36 and 0.28% at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
harvest indexe1
Value
0.36 and 0.28%e1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“harvest index (0.36 and 0.28%)”

✓ located verbatim in the source · abstract, characters 1057–1087 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Biomass yield was 1009.2 and 579.7 at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
biomass yielde1
Value
1009.2 and 579.7e1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“biomass yield (1009.2 and 579.7)”

✓ located verbatim in the source · abstract, characters 1089–1121 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Storage tuber diameter was 22.5 and 15.6 cm at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
storage tuber diametere1
Value
22.5 and 15.6 cme1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“tuberous storage tuber diameter (22.5 and 15.6 cm)”

✓ located verbatim in the source · abstract, characters 1123–1173 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Total tuber yield was 22.45 at the highest level and 7.05 t/ha at the lowest.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
total tuber yielde1
Value
22.45e1
Qualifier
7.05 thae2

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“total tuber yield (22.45”

✓ located verbatim in the source · abstract, characters 1175–1199 · show in text ↑
e2

“and 7.05 tha”

✓ located verbatim in the source · abstract, characters 1211–1223 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Marketable tuber yield was 21.85 and 7.65 t/ha at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
marketable tuber yielde1
Value
21.85 and 7.65e1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“marketable tuber yield (21.85 and 7.65”

✓ located verbatim in the source · abstract, characters 1239–1277 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Unmarketable tuber yield was 3.25 at the highest level and 0.31 t/ha at the lowest.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
unmarketable tuber yielde1
Value
3.25e1
Qualifier
0.31e2

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“unmarketable tuber yield (3.25”

✓ located verbatim in the source · abstract, characters 1308–1338 · show in text ↑
e2

“and 0.31”

✓ located verbatim in the source · abstract, characters 1350–1358 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Marketable storage tuber number was 3.2 and 0.83 at the highest and lowest levels.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
marketable storage tuber numbere1
Value
3.2 and 0.83e1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“marketable storage tuber number (3.2 and 0.83)”

✓ located verbatim in the source · abstract, characters 1377–1423 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Unmarketable tuber number was 0.38 at the highest level and 0.02 at the lowest.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
un marketable tuber numbere1
Value
0.38e1
Qualifier
0.02e2

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“un marketable tuber number (0.38”

✓ located verbatim in the source · abstract, characters 1429–1461 · show in text ↑
e2

“and 0.02)”

✓ located verbatim in the source · abstract, characters 1473–1482 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The highest values were obtained from 10 t/ha farmyard manure plus 100 kg N/ha.

Taxon
Sweet PotatoIpomoea batatast0
Treatment
10t hae1
Outcome
were obtainede1
Qualifier
100 kghae2

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“were obtained from 10t ha”

✓ located verbatim in the source · abstract, characters 1483–1508 · show in text ↑
e2

“plus 100 kgha”

✓ located verbatim in the source · abstract, characters 1537–1550 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Number of branches per plant was countered by the above-mentioned factors.

Taxon
Sweet PotatoIpomoea batatast0
Outcome
number of branches per plante1
Qualifier
the above-mentioned factors were countered bye1

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Response of Sweet Potato”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
e1

“the above-mentioned factors were countered by the number of branches per plant”

✓ located verbatim in the source · abstract, characters 1587–1665 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Inorganic nitrogen fertilizer along with farmyard manure might improve growth, production and yield components of sweet potato (author recommendation).

Taxon
sweet potatoesIpomoea batatase0
Treatment
inorganic nitrogen fertilizer along with farmyard manuree0
Outcome
growth, production, and yield componentse0

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

Ipomoea batatas
Ipomoea batatas · TaxonEarth100 · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the application of inorganic nitrogen fertilizer along with farmyard manure might improve the growth, production, and yield components of sweet potatoes”

✓ located verbatim in the source · abstract, characters 1782–1934 · show in text ↑

nitrogen · yield · Ipomoea batatas (sweet potato)Results differ

35 papers: 31 positive, 4 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

31 papers more in this group

See all 35 papers →

fertilization · yield · Ipomoea batatas (sweet potato)Positive and negative results

145 papers: 126 positive, 19 negative or no effect

125 papers in the same direction as this paper · 18 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

141 papers more in this group

See all 145 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.