Abstract
Nitrogen (N) is an essential nutrient, which often limits crop production. Due to their sparse and shallow root system, the N fertilizer use efficiency in onion production is often low and the risk of nitrate leaching losses is high. Micronutrients play a crucial role in enabling crops and vegetables to achieve optimum productivity, improve storage quality, and overcome physiological disorders. A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023. The main factor was the forms of nitrogen fertilizer N1: Urea (NH2)2CO, N2 (NH4)2SO4 and N3 Ca(NO3)2 .The sub main factor treatments consisted of two levels of foliar application of ZnSO4 (1% and 1.5%) that laid out in spilt plot design with three replications. Data on growth, yield, bulb quality and storage life parameters were recorded and analyzed using co-stat. Optimizing N and zn fertilization strategies, particularly through the combined application of urea and 1.5% ZnSO4, can significantly enhance fresh weight (14176.17 and 14200.67 kg/fed) for both season respectively and overall plant productivity. Also urea and foliar application of 1% ZnSO4gave the most effective content of zn (44.5 and 46 ppm) respectively.. The 1% Zn treatment is recommended for maximizing zinc uptake and overall plant health.. The application of zinc, particularly at a rate of 1.5% with calcium nitrate, was proved to enhance soil nitrogen availability(54.22 and 54.77 mg/kg) respectively, potentially improved crop growth and yield.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 5
Claim · model-written summary
Combined urea and 1.5% ZnSO4 application can significantly enhance onion fresh weight (14176.17 and 14200.67 kg/fed) in both seasons
- Taxon
- onion
Allium cepae0 - Material
- Giza 20e0
- Treatment
- combined application of urea and 1.5% ZnSO4e1
- Outcome
- fresh weighte1
- Direction
- enhancee1
- Value
- 14176.17 and 14200.67 kg/fede1
- Qualifier
- for both season respectivelye1
- Setting
- field experimente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023”
e1“combined application of urea and 1.5% ZnSO4, can significantly enhance fresh weight (14176.17 and 14200.67 kg/fed) for both season respectively”
Claim · model-written summary
Urea with foliar 1% ZnSO4 gave the highest zinc content in onion (44.5 and 46 ppm)
- Taxon
- onionAllium cepae0
- Treatment
- urea and foliar application of 1% ZnSO4e2
- Outcome
- content of zne2
- Direction
- most effectivee2
- Value
- 44.5 and 46 ppme2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023”
e2“urea and foliar application of 1% ZnSO4gave the most effective content of zn (44.5 and 46 ppm) respectively”
Claim · model-written summary
The 1% Zn treatment is recommended for maximizing zinc uptake and overall plant health
- Taxon
- onionAllium cepae0
- Treatment
- 1% Zn treatmente3
- Outcome
- zinc uptakee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023”
e3“The 1% Zn treatment is recommended for maximizing zinc uptake and overall plant health”
Claim · model-written summary
Zinc applied at 1.5% with calcium nitrate was shown to increase soil nitrogen availability (54.22 and 54.77 mg/kg)
- Taxon
- onionAllium cepae0
- Treatment
- zinc, particularly at a rate of 1.5% with calcium nitratee4
- Outcome
- soil nitrogen availabilitye4
- Direction
- enhancee4
- Value
- 54.22 and 54.77 mg/kge4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023”
e4“The application of zinc, particularly at a rate of 1.5% with calcium nitrate, was proved to enhance soil nitrogen availability(54.22 and 54.77 mg/kg) respectively”
Claim · model-written summary
Zinc application at 1.5% with calcium nitrate potentially improves onion growth and yield
- Taxon
- onionAllium cepae0
- Treatment
- zinc, particularly at a rate of 1.5% with calcium nitratee4
- Outcome
- crop growth and yielde5
- Direction
- improvede5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A field experiment was conducted to determine the effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) cv. Giza 20 during season of 2022/ 2023”
e4“The application of zinc, particularly at a rate of 1.5% with calcium nitrate, was proved to enhance soil nitrogen availability(54.22 and 54.77 mg/kg) respectively”
e5“potentially improved crop growth and yield”
The same questions in other papers
zinc atom · yield · Allium cepa (onion)Results differ
32 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
32 papers more in this group
See all 36 papers →zinc atom · soil: chemistry · Allium cepa (onion)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
zinc sulfate · molecular: metabolites · Allium cepa (onion)Results agree
3 papers in the same direction as this paper
- positive
- 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 →zinc sulfate · growth · Allium cepa (onion)Results agree
15 papers in the same direction as this paper
- positive
- positive
- positive
12 papers more in this group
See all 16 papers →nitrogen · growth · Allium cepa (onion)Results differ
70 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- no effect
77 papers more in this group
See all 81 papers →nitrogen · molecular: metabolites · Allium cepa (onion)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
4 papers more in this group
See all 8 papers →application · molecular: metabolites · Allium cepa (onion)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
8 papers more in this group
See all 12 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.