Abstract
Selecting the appropriate nitrogen source for onion cultivation requires alignment with specific production objectives. To improve seed yield and quality of onion, a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP), using nine treatments with varying nitrogen sources (CAN, urea and calcium nitrate) in RCBD with three replications. Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹). However, Treatment Trt5 (75% CAN + 25% calcium nitrate) excelled in leaf length and seed yield (766.52 kg ha⁻¹). Both Trt1 and Trt5 showed high nitrogen use efficiency and residual soil nitrogen. Moreover, T1 recorded the highest benefit-cost ratio (3.53), making it the most effective nitrogen source for enhancing onion seed yield and quality under mid-hill conditions of Himachal Pradesh.
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Claims 13
Claim · model-written summary
Trt1 (100% N applied as CAN) showed superior vegetative growth in onion.
- Taxon
- Onion
Allium cepat0 - Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- vegetative growthe0
- Direction
- superiore0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 bolted early in onion, at 91.33 days.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- early boltinge0
- Direction
- lowerinferrede0
- Value
- 91.33 dayse0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 gave the highest umbel size in onion, 7.43 cm.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- umbel sizee0
- Direction
- higheste0
- Value
- 7.43 cme0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 gave the most seeds per umbel in onion, 1143.80.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- seeds per umbele0
- Direction
- higherinferrede0
- Value
- 1143.80e0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 gave the highest germination of onion seed, 91.50%.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- germinatione0
- Direction
- higherinferrede0
- Value
- 91.50%e0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 gave superior seedling vigour in onion.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- seedling vigoure0
- Direction
- higherinferrede0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt1 gave the lowest electrical conductivity of onion seed, 0.109 dS m⁻¹.
- Taxon
- OnionAllium cepat0
- Treatment
- 100% N (147.5 g/plot)was applied as CANe0
- Outcome
- electrical conductivitye0
- Direction
- loweste0
- Value
- 0.109 dS m⁻¹e0
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e0“Treatment Trt1 in which 100% N (147.5 g/plot)was applied as CAN showed superior vegetative growth, early bolting (91.33 days), highest umbel size (7.43 cm), seeds per umbel (1143.80), and seed quality traits such as germination (91.50%), seedling vigour and lowest electrical conductivity (0.109 dS m⁻¹)”
Claim · model-written summary
Trt5 (75% CAN + 25% calcium nitrate) excelled in leaf length in onion.
- Taxon
- OnionAllium cepat0
- Treatment
- 75% CAN + 25% calcium nitratee4
- Outcome
- leaf lengthe4
- Direction
- excellede4
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e4“Treatment Trt5 (75% CAN + 25% calcium nitrate) excelled in leaf length and seed yield (766.52 kg ha⁻¹)”
Claim · model-written summary
Trt5 (75% CAN + 25% calcium nitrate) excelled in onion seed yield, 766.52 kg ha⁻¹.
- Taxon
- OnionAllium cepat0
- Treatment
- 75% CAN + 25% calcium nitratee4
- Outcome
- seed yielde4
- Direction
- excellede4
- Value
- 766.52 kg ha⁻¹e4
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e4“Treatment Trt5 (75% CAN + 25% calcium nitrate) excelled in leaf length and seed yield (766.52 kg ha⁻¹)”
Claim · model-written summary
Trt1 showed high nitrogen use efficiency and high residual soil nitrogen in onion.
- Taxon
- OnionAllium cepat0
- Treatment
- Trt1e2
- Outcome
- nitrogen use efficiency and residual soil nitrogene2
- Direction
- highe2
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e2“Both Trt1 and Trt5 showed high nitrogen use efficiency and residual soil nitrogen”
Claim · model-written summary
Trt5 showed high nitrogen use efficiency and high residual soil nitrogen in onion.
- Taxon
- OnionAllium cepat0
- Treatment
- Trt5e2
- Outcome
- nitrogen use efficiency and residual soil nitrogene2
- Direction
- highe2
- Setting
- Nauni, Solan (HP)e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e1“a study was conducted in 2020-2021 at Dr YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP)”
e2“Both Trt1 and Trt5 showed high nitrogen use efficiency and residual soil nitrogen”
Claim · model-written summary
T1 gave the highest benefit-cost ratio (3.53) in onion.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e3“T1 recorded the highest benefit-cost ratio (3.53)”
Claim · model-written summary
T1 is the most effective nitrogen source for enhancing onion seed yield and quality under mid-hill conditions of Himachal Pradesh.
- Taxon
- OnionAllium cepat0
- Outcome
- most effective nitrogen sourcee3
- Qualifier
- for enhancing onion seed yield and qualitye3
- Setting
- mid-hill conditions of Himachal Pradeshe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Onion”
e3“making it the most effective nitrogen source for enhancing onion seed yield and quality under mid-hill conditions of Himachal Pradesh”
The same questions in other papers
calcium nitrate · growth · Allium cepa (onion)Results agree
2 papers in the same direction as this paper
- positive
- positive
calcium nitrate · yield · Allium cepa (onion)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 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.