Abstract
Excessive application of basal and additional fertilizers strongly affects the physiological responses of onion bulbs, including yield, quality, and decay during long-term storage. This study evaluated the effects of additional fertilizer application times and strength on onion bulb number and yield at harvest and bulb quality attributes during storage at ambient temperature and relative humidity. Relative to the recommended levels of additional and conventional fertilization for standard onion cultivation, 0.5-, 1-, 1.5-, and 2-fold application strengths and 1, 2, and 3 application times were tested in individual experiments. Although onion bulb number and fresh weight per bulb size were not affected by the application strength of additional fertilizer, onion bulb yield increased at the application strengths lower or higher than the recommended levels. Bulb fresh weight loss and bulb decay severity were the highest at the 2.0-fold application strength of additional fertilizer. With the increase in the application times of additional fertilizer, bulb yield increased gradually but bulb number and fresh weight per bulb size remained unchanged. Furthermore, bulb weight loss and decay severity were the highest when additional fertilizer was applied thrice. Therefore, heavy and repetitive application of additional fertilizers may reduce the quality of onion bulbs through weight loss and severe decay during storage at ambient temperature, regardless of the high bulb yield at harvest.
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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 9
Claim · model-written summary
Additional fertilizer strength did not affect bulb number.
- Taxon
- Onion
Allium cepat0 - Treatment
- application strength of additional fertilizere0
- Outcome
- onion bulb numbere0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion bulb number and fresh weight per bulb size were not affected by the application strength of additional fertilizer”
t0“Onion”
Claim · model-written summary
Additional fertilizer strength did not affect fresh weight per bulb size.
- Taxon
- OnionAllium cepat0
- Treatment
- application strength of additional fertilizere0
- Outcome
- fresh weight per bulb sizee0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion bulb number and fresh weight per bulb size were not affected by the application strength of additional fertilizer”
t0“Onion”
Claim · model-written summary
Bulb yield increased at fertilizer strengths below or above recommended levels.
- Taxon
- OnionAllium cepat0
- Treatment
- application strengths lower or higher than the recommended levelse0
- Outcome
- onion bulb yielde0
- Direction
- increasede0
- Comparator
- recommended levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“onion bulb yield increased at the application strengths lower or higher than the recommended levels”
t0“Onion”
Claim · model-written summary
Bulb fresh weight loss was highest at 2.0-fold additional fertilizer strength.
- Taxon
- OnionAllium cepat0
- Treatment
- 2.0-fold application strength of additional fertilizere0
- Outcome
- Bulb fresh weight losse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bulb fresh weight loss and bulb decay severity were the highest at the 2.0-fold application strength of additional fertilizer”
t0“Onion”
Claim · model-written summary
Bulb decay severity was highest at 2.0-fold additional fertilizer strength.
- Taxon
- OnionAllium cepat0
- Treatment
- 2.0-fold application strength of additional fertilizere0
- Outcome
- bulb decay severitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bulb fresh weight loss and bulb decay severity were the highest at the 2.0-fold application strength of additional fertilizer”
t0“Onion”
Claim · model-written summary
Bulb yield rose with additional fertilizer application times.
- Taxon
- OnionAllium cepat0
- Treatment
- increase in the application times of additional fertilizere0
- Outcome
- bulb yielde0
- Direction
- increased graduallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase in the application times of additional fertilizer, bulb yield increased gradually”
t0“Onion”
Claim · model-written summary
Bulb number and fresh weight per bulb size remained unchanged as fertilizer application times increased.
- Taxon
- OnionAllium cepat0
- Treatment
- increase in the application times of additional fertilizere0
- Outcome
- bulb number and fresh weight per bulb sizee0
- Direction
- remained unchangede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase in the application times of additional fertilizer, bulb yield increased gradually but bulb number and fresh weight per bulb size remained unchanged”
t0“Onion”
Claim · model-written summary
Bulb weight loss was highest when additional fertilizer was applied thrice.
- Taxon
- OnionAllium cepat0
- Treatment
- additional fertilizer was applied thricee0
- Outcome
- bulb weight losse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bulb weight loss and decay severity were the highest when additional fertilizer was applied thrice”
t0“Onion”
Claim · model-written summary
Bulb decay severity was highest when additional fertilizer was applied thrice.
- Taxon
- OnionAllium cepat0
- Treatment
- additional fertilizer was applied thricee0
- Outcome
- decay severitye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bulb weight loss and decay severity were the highest when additional fertilizer was applied thrice”
t0“Onion”
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