Abstract
In order to investigate the effect of nutrient foliar spraying such as amino and humic acids under nitrogen fertilizer levels on growth, yield and keeping quality of onion bulbs cv. Giza 20. Two field experiments were conducted at Gemmeiza Agriculture Research Station Farm, Gharbeia Governorate, Agriculture Research Center, during 2010/2011 and 2011/2012 seasons. The obtained results showed that foliar spraying with humic acid resulted in highest growth characters, total and marketable yields, total culls and bulb weight as well as TSS %, dry matter and total weight loss percentages at storage period compared with the control treatment. Increasing nitrogen fertilizer levels up to 214.2 kg N/ha significantly increased growth characters, total and marketable yields, total culls and bulb weight as well as total weight loss percentages at storage period. In addition, fertilization with 71.4 kg N/ha significantly increased TSS and dry matter percentages. It could be recommended that spraying with humic acid and adding 214.2 kg N/ha maximize onion bulb yield under the environmental conditions of Gharbeia Governorate. The interaction between nutrients spraying and nitrogen fertilizer levels significantly affected foliage fresh weight, total weight loss % after 1, 2, 3 and 5 months.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
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 7
Claim · model-written summary
Humic acid foliar spray gave the highest growth characters, yields, culls and bulb weight versus control.
- Taxon
- ONION
Allium cepat0 - Treatment
- foliar spraying with humic acide0
- Outcome
- growth characters, total and marketable yields, total culls and bulb weighte0
- Direction
- higheste0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“foliar spraying with humic acid resulted in highest growth characters, total and marketable yields, total culls and bulb weight as well as TSS %, dry matter and total weight loss percentages at storage period compared with the control treatment”
Claim · model-written summary
Humic acid spraying gave the highest TSS, dry matter and storage weight loss percentages.
- Taxon
- ONIONAllium cepat0
- Treatment
- foliar spraying with humic acide0
- Outcome
- TSS %, dry matter and total weight loss percentagese0
- Direction
- higheste0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“foliar spraying with humic acid resulted in highest growth characters, total and marketable yields, total culls and bulb weight as well as TSS %, dry matter and total weight loss percentages at storage period compared with the control treatment”
Claim · model-written summary
Increasing nitrogen to 214.2 kg N/ha significantly increased growth, yield, culls, bulb weight and storage weight loss.
- Taxon
- ONIONAllium cepat0
- Treatment
- nitrogen fertilizer levels up to 214.2 kg N/hae0
- Outcome
- growth characters, total and marketable yields, total culls and bulb weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“Increasing nitrogen fertilizer levels up to 214.2 kg N/ha significantly increased growth characters, total and marketable yields, total culls and bulb weight as well as total weight loss percentages at storage period”
Claim · model-written summary
Increasing nitrogen to 214.2 kg N/ha significantly increased storage weight loss.
- Taxon
- ONIONAllium cepat0
- Treatment
- nitrogen fertilizer levels up to 214.2 kg N/hae0
- Outcome
- total weight loss percentages at storage periode0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“Increasing nitrogen fertilizer levels up to 214.2 kg N/ha significantly increased growth characters, total and marketable yields, total culls and bulb weight as well as total weight loss percentages at storage period”
Claim · model-written summary
Fertilization with 71.4 kg N/ha significantly increased TSS and dry matter percentages.
- Taxon
- ONIONAllium cepat0
- Treatment
- fertilization with 71.4 kg N/hae0
- Outcome
- TSS and dry matter percentagese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“fertilization with 71.4 kg N/ha significantly increased TSS and dry matter percentages”
Claim · model-written summary
The authors recommend humic acid spraying and 214.2 kg N/ha for maximum onion bulb yield in Gharbeia Governorate.
- Taxon
- ONIONAllium cepat0
- Treatment
- spraying with humic acid and adding 214.2 kg N/hae0
- Outcome
- maximize onion bulb yielde0
- Setting
- Gharbeia Governoratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“spraying with humic acid and adding 214.2 kg N/ha maximize onion bulb yield under the environmental conditions of Gharbeia Governorate”
Claim · model-written summary
Spray and nitrogen level interaction significantly affected foliage fresh weight and storage weight loss.
- Taxon
- ONIONAllium cepat0
- Treatment
- nutrients spraying and nitrogen fertilizer levelse0
- Outcome
- foliage fresh weight, total weight loss %e0
- Qualifier
- after 1, 2, 3 and 5 monthse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“ONION”
e0“interaction between nutrients spraying and nitrogen fertilizer levels significantly affected foliage fresh weight, total weight loss % after 1, 2, 3 and 5 months”
The same questions in other papers
fertilization · quality: sugar starch · Allium cepa (onion)Results differ
35 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- no effect
- negative
40 papers more in this group
See all 44 papers →nitrogen · quality: sugar starch · Allium cepa (onion)Positive and negative results
9 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- no effect
9 papers more in this group
See all 13 papers →nitrogen · quality: postharvest · Allium cepa (onion)Positive and negative results
35 papers in the same direction as this paper · 5 in the opposite direction
- positive
- negative
- negative
37 papers more in this group
See all 41 papers →fertilization · quality: postharvest · Allium cepa (onion)Positive and negative results
52 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
65 papers more in this group
See all 69 papers →other · quality: postharvest · Allium cepa (onion)Results agree
10 papers in the same direction as this paper
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →application · quality: postharvest · Allium cepa (onion)Results agree
21 papers in the same direction as this paper
- positive
- positive
- positive
18 papers more in this group
See all 22 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.