Abstract
During winter seasons of 2017-2018 and 2018-2019, an experiment was conducted at a privet farm located in El-Sarou, Damietta governorate, Egypt, on onion growth, yield, and quality as affected by humic substances and foliar application with plant extracts. In split plot design, the experimental was consisted of 3 replicate having 15 treatments arrangement as; 5 treatments of humic substance (control, 2 and 4 kg for each humic and fulvic in form of potassium) as main plot, 3 levels of plant extract (without, 10 and 20 ml.L-1 mix from garlic and onion extract) as sub plot. The obtained results indicated that, soil addition of 4 kg.fed-1 potassium humate recorded highest significant values for growth traits, yield and its components as well as N, P, K, Fe, Mn and Zn in leaves and bulb, also, chemical and physical quality of bulb. On the same parameters, foliar application of 20 ml.L-1 from plant extract recorded the highest values. The combined application between 4 kg.fed-1 potassium humate with foliar 20 ml.L-1 plant extract was more prominent in enhancing the aforementioned parameters. Addition of potassium humate 4 kg.fed-1 increased available N, P, K mg.kg-1 and porosity, while decreased EC ds.m-1 in the soil after harvesting.
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Claims 8
Claim · model-written summary
Potassium humate at 4 kg.fed-1 gave the highest significant onion growth and yield values.
- Taxon
- Onion
Allium cepat0 - Treatment
- 4 kg.fed-1 potassium humatee0
- Outcome
- growth traits, yield and its componentse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soil addition of 4 kg.fed-1 potassium humate recorded highest significant values for growth traits, yield and its components”
t0“Productivity of Onion”
Claim · model-written summary
Potassium humate at 4 kg.fed-1 gave the highest leaf and bulb mineral values.
- Taxon
- Onion
Allium cepat0 - Treatment
- 4 kg.fed-1 potassium humatee0
- Outcome
- N, P, K, Fe, Mn and Zn in leaves and bulbe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soil addition of 4 kg.fed-1 potassium humate recorded highest significant values for growth traits, yield and its components as well as N, P, K, Fe, Mn and Zn in leaves and bulb”
t0“Productivity of Onion”
Claim · model-written summary
Potassium humate at 4 kg.fed-1 gave the highest bulb chemical and physical quality.
- Taxon
- Onion
Allium cepat0 - Treatment
- 4 kg.fed-1 potassium humatee1
- Outcome
- chemical and physical quality of bulbe0
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“chemical and physical quality of bulb”
e1“soil addition of 4 kg.fed-1 potassium humate recorded highest significant values”
t0“Productivity of Onion”
Claim · model-written summary
Foliar plant extract at 20 ml.L-1 gave the highest values for growth, yield, mineral content and bulb quality.
- Taxon
- Onion
Allium cepat0 - Treatment
- foliar application of 20 ml.L-1 from plant extracte0
- Outcome
- growth traits, yield and its components as well as N, P, K, Fe, Mn and Zn in leaves and bulb, also, chemical and physical quality of bulbe1
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“foliar application of 20 ml.L-1 from plant extract recorded the highest values”
e1“growth traits, yield and its components as well as N, P, K, Fe, Mn and Zn in leaves and bulb, also, chemical and physical quality of bulb”
t0“Productivity of Onion”
Claim · model-written summary
Combined potassium humate and plant extract application enhanced the measured onion parameters more prominently.
- Taxon
- Onion
Allium cepat0 - Treatment
- 4 kg.fed-1 potassium humate with foliar 20 ml.L-1 plant extracte0
- Outcome
- aforementioned parameterse0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The combined application between 4 kg.fed-1 potassium humate with foliar 20 ml.L-1 plant extract was more prominent in enhancing the aforementioned parameters”
t0“Productivity of Onion”
Claim · model-written summary
Potassium humate increased available soil N, P and K after harvest.
- Taxon
- Onion
Allium cepat0 - Treatment
- potassium humate 4 kg.fed-1e0
- Outcome
- available N, P, K mg.kg-1e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Addition of potassium humate 4 kg.fed-1 increased available N, P, K mg.kg-1 and porosity, while decreased EC ds.m-1 in the soil after harvesting”
t0“Productivity of Onion”
Claim · model-written summary
Potassium humate increased soil porosity after harvest.
- Taxon
- Onion
Allium cepat0 - Treatment
- potassium humate 4 kg.fed-1e0
- Outcome
- porositye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Addition of potassium humate 4 kg.fed-1 increased available N, P, K mg.kg-1 and porosity, while decreased EC ds.m-1 in the soil after harvesting”
t0“Productivity of Onion”
Claim · model-written summary
Potassium humate decreased soil EC after harvest.
- Taxon
- Onion
Allium cepat0 - Treatment
- potassium humate 4 kg.fed-1e0
- Outcome
- EC ds.m-1 in the soile0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Addition of potassium humate 4 kg.fed-1 increased available N, P, K mg.kg-1 and porosity, while decreased EC ds.m-1 in the soil after harvesting”
t0“Productivity of Onion”
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