Abstract
The leafy vegetable shallot (Allium ascalonium L.) is grown in many tropical locations, including Ethiopia. Due to insufficient soil fertility, a lack of better planting materials, improper plant density, and a lack of agronomy research, the study area's shallot yield is low. Thus, this experiment was carried out during the 2021–2022 off-season in Mulo District, Oromia Regional State, Ethiopia. The primary goal of this study was to assess intra-row spacing and nitrogen fertilizer rates affected shallot growth, yield, and quality. Four intra-row spacings (5, 10, 15, and 20 cm) and four nitrogen fertilizer rates (0, 50, 100, and 150 kg N ha⁻¹) were set up in a 4 × 4 factorial experiment utilizing a randomized full block design with three replications. Data were collected on yield components, yield, and quality parameters of shallots. Both the main effects and their interaction exhibited a substantial (p < 0.05) impact on yield and quality parameters, according to analysis of variance. The maximum marketable and total bulb yields were obtained from the interaction of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing, while the lowest yields 16.79tha-1 were recorded from the zero kg N and at the narrowest spacing. Therefore, the use of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing can be recommended for improved shallot production under the conditions of the study area. However, further studies across different seasons would be to validate these findings.
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Claims 5
Claim · model-written summary
Nitrogen rate and spacing, including their interaction, significantly affected shallot yield and quality.
- Taxon
- Shallot
Allium cepa var. aggregatumt0 - Treatment
- main effects and their interactione0
- Outcome
- yield and quality parameterse0
- Value
- p < 0.05e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Shallot (Allium ascalonium L.)”
e0“Both the main effects and their interaction exhibited a substantial (p < 0.05) impact on yield and quality parameters”
Claim · model-written summary
Marketable bulb yield was maximal with 150 kg N ha⁻¹ and 15 cm spacing.
- Taxon
- ShallotAllium cepa var. aggregatumt0
- Treatment
- 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacinge0
- Outcome
- marketablee0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Shallot (Allium ascalonium L.)”
e0“The maximum marketable and total bulb yields were obtained from the interaction of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing”
Claim · model-written summary
Total bulb yield was maximal with 150 kg N ha⁻¹ and 15 cm spacing.
- Taxon
- ShallotAllium cepa var. aggregatumt0
- Treatment
- 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacinge0
- Outcome
- total bulb yieldse0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Shallot (Allium ascalonium L.)”
e0“The maximum marketable and total bulb yields were obtained from the interaction of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing”
Claim · model-written summary
The lowest yields, 16.79tha-1, occurred with zero N and narrowest spacing.
- Taxon
- ShallotAllium cepa var. aggregatumt0
- Treatment
- zero kg N and at the narrowest spacinge0
- Outcome
- yieldse0
- Direction
- loweste0
- Value
- 16.79tha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Shallot (Allium ascalonium L.)”
e0“the lowest yields 16.79tha-1 were recorded from the zero kg N and at the narrowest spacing”
Claim · model-written summary
The authors recommend 150 kg N ha⁻¹ with 15 cm spacing for shallot production.
- Taxon
- ShallotAllium cepa var. aggregatumt0
- Treatment
- 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacinge0
- Outcome
- improved shallot productione0
- Setting
- study areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Shallot (Allium ascalonium L.)”
e0“the use of 150 kg N ha⁻¹ nitrogen fertilizer with 15 cm intra-row spacing can be recommended for improved shallot production under the conditions of the study area”
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