Abstract
A field experiment was conducted at Shire, Lemlem demonstration farm under rainfall condition to study the impact of nitrogen (N) fertilizer rates and intra row spacing on growth bulb yields and profitability of onion (Allium cepa L.).Treatments consisted of factorial combination of four rates of N fertilizer (0, 50, 100 and 150 kg ha -1 ) and four intra row spacing (4, 6, 8, and 10 cm).The experiment was laid out as a Randomized Complete Block Design with three replications.The result of this study revealed that the interaction effect of N and spacing affected days to maturity and plant height.The main effect of N significantly affected most of the studied parameters while spacing affected number of leaves and yield.Days to maturity of onions were prolonged in response to the increased rate of nitrogen application.Increasing nitrogen from the nil to 150 kg N ha -1 decreased bolting percentage by 62%.Increasing the rate of nitrogen from 50 to 100 kg N ha -1 increased the total bulb yield and leaf number by about 26.7% and 29% respectively.However, increasing the rate of N further from 100 to 150 kg N ha -1 tended to decrease total bulb yield by 5.3 %.Higher marketable yield of 31.455t ha -1 were obtained at 100 kg N ha .-1 .The result of partial Budget analysis showed that 100 kg N ha -1 combined with 6 cm intra row spacing was found the best treatment than others in relation to bulb yield and economic benefits under the condition of Shire, northern Ethiopia.
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Claims 12
Claim · model-written summary
Nitrogen rate and spacing interacted in their effects on days to maturity.
- Taxon
- onion
Allium cepae0 - Treatment
- N and spacinge1
- Outcome
- days to maturitye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“the interaction effect of N and spacing affected days to maturity and plant height”
Claim · model-written summary
Nitrogen rate and spacing interacted in their effects on plant height.
- Taxon
- onionAllium cepae0
- Treatment
- N and spacinge1
- Outcome
- plant heighte1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“the interaction effect of N and spacing affected days to maturity and plant height”
Claim · model-written summary
The main nitrogen effect significantly affected most studied parameters.
- Taxon
- onionAllium cepae0
- Treatment
- Ne1
- Outcome
- most of the studied parameterse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“The main effect of N significantly affected most of the studied parameters”
Claim · model-written summary
Spacing affected onion leaf number.
- Taxon
- onionAllium cepae0
- Treatment
- spacinge1
- Outcome
- number of leavese1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“spacing affected number of leaves and yield”
Claim · model-written summary
Spacing affected onion yield.
- Taxon
- onionAllium cepae0
- Treatment
- spacinge1
- Outcome
- yielde1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“spacing affected number of leaves and yield”
Claim · model-written summary
Increasing nitrogen rate prolonged onion days to maturity.
- Taxon
- onionsAllium cepae0
- Treatment
- increased rate of nitrogen applicatione0
- Outcome
- Days to maturitye0
- Direction
- prolongede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Days to maturity of onions were prolonged in response to the increased rate of nitrogen application”
Claim · model-written summary
Increasing nitrogen from nil to 150 kg N ha -1 decreased bolting by 62%.
- Taxon
- onionAllium cepae0
- Treatment
- 150 kg N ha -1e1
- Outcome
- bolting percentagee1
- Direction
- decreasede1
- Value
- 62%e1
- Comparator
- nile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“Increasing nitrogen from the nil to 150 kg N ha -1 decreased bolting percentage by 62%”
Claim · model-written summary
Increasing nitrogen from 50 to 100 kg N ha -1 increased total bulb yield by about 26.7%.
- Taxon
- onionAllium cepae0
- Treatment
- 100 kg N ha -1e1
- Outcome
- total bulb yielde1
- Direction
- increasede1
- Value
- 26.7%e1
- Comparator
- 50e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“Increasing the rate of nitrogen from 50 to 100 kg N ha -1 increased the total bulb yield and leaf number by about 26.7% and 29% respectively”
Claim · model-written summary
Increasing nitrogen from 50 to 100 kg N ha -1 increased leaf number by about 29%.
- Taxon
- onionAllium cepae0
- Treatment
- 100 kg N ha -1e1
- Outcome
- leaf numbere1
- Direction
- increasede1
- Value
- 29%e1
- Comparator
- 50e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“Increasing the rate of nitrogen from 50 to 100 kg N ha -1 increased the total bulb yield and leaf number by about 26.7% and 29% respectively”
Claim · model-written summary
Increasing nitrogen from 100 to 150 kg N ha -1 tended to decrease total bulb yield by 5.3%.
- Taxon
- onionAllium cepae0
- Treatment
- 150 kg N ha -1e1
- Outcome
- total bulb yielde1
- Direction
- decreasee1
- Value
- 5.3 %e1
- Qualifier
- tended toe1
- Comparator
- 100e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“increasing the rate of N further from 100 to 150 kg N ha -1 tended to decrease total bulb yield by 5.3 %”
Claim · model-written summary
The higher marketable yield at 100 kg N ha .-1 was 31.455t ha -1.
- Taxon
- onionAllium cepae0
- Treatment
- 100 kg N ha .-1e1
- Outcome
- marketable yielde1
- Direction
- Highere1
- Value
- 31.455t ha -1e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“Higher marketable yield of 31.455t ha -1 were obtained at 100 kg N ha .-1”
Claim · model-written summary
The budget analysis identified 100 kg N ha -1 with 6 cm spacing as the best treatment for bulb yield and economic benefit under Shire conditions.
- Taxon
- onionAllium cepae0
- Treatment
- 100 kg N ha -1 combined with 6 cm intra row spacinge1
- Outcome
- best treatment than others in relation to bulb yield and economic benefitse1
- Setting
- Shire, northern Ethiopiae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion (Allium cepa L.)”
e1“100 kg N ha -1 combined with 6 cm intra row spacing was found the best treatment than others in relation to bulb yield and economic benefits under the condition of Shire, northern Ethiopia”
The same questions in other papers
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156 papers in the same direction as this paper · 23 in the opposite direction · 4 reporting no difference from an alternative
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See all 184 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.