Paper · 2025 · International Journal of Agricultural Technology

Shallot cultivation on unsuitable agro-climate and marginal lowland treated with chicken manure in Bengkulu, Indonesia

Barchia, M. F.; Rahman, N.; Reflis; et al.

8
claims
11
verbatim quotes
1
citations
1
research areas
✓
Open access · cc-by-nc-nd

Abstract

Agro-climatological condition in Bengkulu is unsuitable and most areas have marginal soil characteristics for shallot cultivation. However, all shallot varieties were adaptable and grown on the cultivation area after the soil characteristics were ameliorated. Faced with unsuitable agro-climatic conditions such as too much rainfall, farmers should construct plastic shade or should adjust planting time during the closed dry season. Futhermore, all shallot varieties responded significantly to the chicken manure applied and 7 varieties involved Bima Brebes, Kramat, TSS Agrihort 1, Violetta 2, Violetta 3 Agrihort 1, Trisula, and Bauji significantly responded to the increasing doses of the manure applied. Bima Brebes and Violetta 3 Agrihort 1 showed the best yield performed by the shallot yields at 10 tons ha-1 of the chicken manure applied while Kramat, TSS Agrohort 1, Violetta 2, and Trisula showed the best yield at 20 tons ha-1 of the manure added. Furthermore, Bauji started to respond significantly at 20 tons ha-1 and increased significantly the yields when the increasing doses of the manure were applied. The highest yields of the shallot bulbs are grown on the irrigated marginal lowland in this area when the chicken manure was applied at 20 tons ha-1 which gave 20.996 tons’ ha-1 for the dry weight of the shallot bulbs.

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

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Claims 8

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

All shallot varieties grew in the cultivation area after soil amelioration.

Outcome
adaptable and growne0
Qualifier
after the soil characteristics were amelioratede0

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“all shallot varieties were adaptable and grown on the cultivation area after the soil characteristics were ameliorated”

✓ located verbatim in the source · abstract, characters 140–258 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

All shallot varieties responded significantly to applied chicken manure.

Treatment
chicken manuree0
Outcome
respondede0
Direction
responded significantlye0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“all shallot varieties responded significantly to the chicken manure applied”

✓ located verbatim in the source · abstract, characters 446–521 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bima Brebes, Kramat, TSS Agrihort 1, Violetta 2, Violetta 3 Agrihort 1, Trisula and Bauji responded significantly to increasing manure doses.

Material
Bima Brebese0
Treatment
increasing doses of the manuree0
Outcome
respondede0
Direction
respondede0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“7 varieties involved Bima Brebes, Kramat, TSS Agrihort 1, Violetta 2, Violetta 3 Agrihort 1, Trisula, and Bauji significantly responded to the increasing doses of the manure applied”

✓ located verbatim in the source · abstract, characters 526–707 · show in text ↑
e1

“all shallot varieties were adaptable”

✓ located verbatim in the source · abstract, characters 140–176 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bima Brebes had its best shallot yield at 10 tons ha-1 chicken manure.

Material
Bima Brebese0
Treatment
10 tons ha-1 of the chicken manuree0
Outcome
shallot yieldse0
Direction
best yielde0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Bima Brebes and Violetta 3 Agrihort 1 showed the best yield performed by the shallot yields at 10 tons ha-1 of the chicken manure applied”

✓ located verbatim in the source · abstract, characters 709–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Violetta 3 Agrihort 1 had its best shallot yield at 10 tons ha-1 chicken manure.

Material
Violetta 3 Agrihort 1e0
Treatment
10 tons ha-1 of the chicken manuree0
Outcome
shallot yieldse0
Direction
best yielde0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Bima Brebes and Violetta 3 Agrihort 1 showed the best yield performed by the shallot yields at 10 tons ha-1 of the chicken manure applied”

✓ located verbatim in the source · abstract, characters 709–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Kramat, TSS Agrohort 1, Violetta 2 and Trisula had their best yields at 20 tons ha-1 manure.

Material
Kramate0
Treatment
20 tons ha-1 of the manuree0
Outcome
yielde0
Direction
best yielde0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Kramat, TSS Agrohort 1, Violetta 2, and Trisula showed the best yield at 20 tons ha-1 of the manure added”

✓ located verbatim in the source · abstract, characters 853–958 · show in text ↑
e1

“shallot yields”

✓ located verbatim in the source · abstract, characters 786–800 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Bauji yield first responded significantly at 20 tons ha-1 manure and then rose significantly with increasing doses.

Material
Baujie0
Treatment
20 tons ha-1e0
Outcome
yieldse0
Direction
increasede0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Bauji started to respond significantly at 20 tons ha-1 and increased significantly the yields when the increasing doses of the manure were applied”

✓ located verbatim in the source · abstract, characters 973–1119 · show in text ↑
e1

“shallot yields”

✓ located verbatim in the source · abstract, characters 786–800 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Across treatments, 20 tons ha-1 chicken manure gave the highest shallot bulb dry-weight yield, 20.996 tons’ ha-1, on irrigated marginal lowland.

Organ / stage
bulbse0
Treatment
chicken manure was applied at 20 tons ha-1e0
Outcome
dry weight of the shallot bulbse0
Direction
highest yieldse0
Value
20.996 tons’ ha-1e0
Setting
irrigated marginal lowlande0

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest yields of the shallot bulbs are grown on the irrigated marginal lowland in this area when the chicken manure was applied at 20 tons ha-1 which gave 20.996 tons’ ha-1 for the dry weight of the shallot bulbs.”

✓ located verbatim in the source · abstract, characters 1121–1339 · show in text ↑

fertilization · growth · Allium cepa (onion)Positive and negative results

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530 papers: 464 positive, 66 negative or no effect

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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.