Paper · 2025 · International Journal of Development and Sustainability

Agronomic performance of sweet potato genotypes in Eswatini under organic and inorganic soil amendments

Nhlanhla Hlophe; Zukiswa Zikalala; Paul Wahome; et al.

5
claims
10
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by

Abstract

Two field trials were conducted at the Lowveld Experimental Station (LES) and Malkerns Research Station (MRS) to determine the agronomic performance of sweet potato genotypes in Eswatini under organic and inorganic soil amendments.A 3 x 5 factorial experiment was laid out in a randomised complete block with three replications.The treatments included four sweetpotato genotypes, Namanga, Cecelia, Melinda and Ligwalagwala with five nutrient amendments: no fertiliser/manure, four rates of cattle manure at 20, 40, 60 and NPK 2:3:4 (39) at 0.45 tonnes per hectare.Field results showed significant differences (P < 0.05) among sweet potato genotypes and yield at LES and MRS.Mean petiole and vines lengths at LES and MRS under the different treatments.showed significant differences among sweet potato genotypes.Results from LES and MRS showed that growing Melinda using inorganic fertilizers at 0.45 t/ha gave the highest marketable yield of 29.46 and 26.34 t/ha respectively.The results showed relatively similar levels of performance of inorganic fertilizer when compared with cattle manure applications.

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

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sweet potato genotypes differed significantly in yield at both stations.

Taxon
sweet potatoIpomoea batatase0
Material
sweet potato genotypese0
Outcome
yielde0
Setting
LES and MRSe0

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

“Field results showed significant differences (P < 0.05) among sweet potato genotypes and yield at LES and MRS.”

✓ located verbatim in the source · abstract, characters 564–674 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Mean petiole and vine lengths differed significantly among genotypes at both stations.

Taxon
sweet potatoIpomoea batatase0
Material
sweet potato genotypese0
Outcome
Mean petiole and vines lengthse0
Setting
LES and MRSe0

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

“Mean petiole and vines lengths at LES and MRS under the different treatments.showed significant differences among sweet potato genotypes”

✓ located verbatim in the source · abstract, characters 674–810 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melinda with inorganic fertilizer gave the highest marketable yield at LES, 29.46 t/ha.

Taxon
sweet potatoIpomoea batatast0
Material
Melindae0
Treatment
inorganic fertilizers at 0.45 t/hae0
Outcome
marketable yielde0
Direction
higheste0
Value
29.46e0
Setting
LESe1

Not reportedComparator

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

“growing Melinda using inorganic fertilizers at 0.45 t/ha gave the highest marketable yield of 29.46 and 26.34 t/ha respectively”

✓ located verbatim in the source · abstract, characters 848–975 · show in text ↑
e1

“Results from LES and MRS”

✓ located verbatim in the source · abstract, characters 811–835 · show in text ↑
t0

“sweet potato genotypes”

✓ located verbatim in the source · title, characters 25–47 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Melinda with inorganic fertilizer gave the highest marketable yield at MRS, 26.34 t/ha.

Taxon
sweet potatoIpomoea batatast0
Material
Melindae0
Treatment
inorganic fertilizers at 0.45 t/hae0
Outcome
marketable yielde0
Direction
higheste0
Value
26.34 t/hae0
Setting
MRSe1

Not reportedComparator

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

“growing Melinda using inorganic fertilizers at 0.45 t/ha gave the highest marketable yield of 29.46 and 26.34 t/ha respectively”

✓ located verbatim in the source · abstract, characters 848–975 · show in text ↑
e1

“Results from LES and MRS”

✓ located verbatim in the source · abstract, characters 811–835 · show in text ↑
t0

“sweet potato genotypes”

✓ located verbatim in the source · title, characters 25–47 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Inorganic fertilizer and cattle manure gave relatively similar performance.

Taxon
sweet potatoIpomoea batatast0
Treatment
inorganic fertilizere0
Outcome
performancee0
Direction
relatively similare0
Comparator
cattle manure applicationse0

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

“relatively similar levels of performance of inorganic fertilizer when compared with cattle manure applications”

✓ located verbatim in the source · abstract, characters 995–1105 · show in text ↑
t0

“sweet potato genotypes”

✓ located verbatim in the source · title, characters 25–47 · show in text ↑

fertilization · quality: postharvest · Ipomoea batatas (sweet potato)Positive and negative results

16 papers: 13 positive, 3 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

12 papers more in this group

See all 16 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.