Abstract
This study was mainly conducted to fabricate and evaluate a harvester unit for onion crop. So the experimental design was implemented with four different of blade types, tilt angle of shares and speed ratio under three different harvesting depths. These variables were tested according to Total losses concerning(Blade damage - Brushing damage - Conveying losses - Un-lifted bulbs ratio); Efficiencies concerning(Digging efficiency - Cleaning efficiency - Harvesting efficiency - Field efficiency); Effective field capacity; Specific energy and Total costs. All trials were preceded in El-Serw Agic. Res. Station, Damietta Governorate during the onion harvest season 2020-2021. The overall results were summarized into the modification in the onion harvester with blades changed to scoop shapes with tilt angle of shares of 250 and speed ratio of 2.11 under harvesting depth of 11 cm to achieve the lowest total damage and high efficiencies and specific energy with less overall costs in general. While some parameters showed the best results in partial variables as gator blades and 5 cm digging depth for effective field capacity and field efficiency; speed ratio of 1.7 for effective field capacity, cleaning efficiency and specific energy and blade angle of 200 for field efficiency.
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
Scoop shaped blades with a share tilt angle of 250, speed ratio 2.11 and 11 cm depth gave the lowest total damage.
- Taxon
- onion
Allium cepat0 - Treatment
- blades changed to scoop shapes with tilt angle of shares of 250 and speed ratio of 2.11 under harvesting depth of 11 cme0
- Outcome
- total damagee0
- Direction
- loweste0
- Value
- 11 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modification in the onion harvester with blades changed to scoop shapes with tilt angle of shares of 250 and speed ratio of 2.11 under harvesting depth of 11 cm to achieve the lowest total damage”
t0“Onion”
Claim · model-written summary
The scoop blade configuration gave high efficiencies and specific energy with lower overall costs.
- Taxon
- onionAllium cepat0
- Treatment
- blades changed to scoop shapese0
- Outcome
- high efficiencies and specific energy with less overall costse0
- Value
- 2.11e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blades changed to scoop shapes with tilt angle of shares of 250 and speed ratio of 2.11 under harvesting depth of 11 cm to achieve the lowest total damage and high efficiencies and specific energy with less overall costs”
t0“Onion”
Claim · model-written summary
Gator blades and 5 cm digging depth gave the best effective field capacity and field efficiency.
- Taxon
- onionAllium cepat0
- Treatment
- gator blades and 5 cm digging depthe0
- Outcome
- effective field capacity and field efficiencye0
- Value
- 5 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“gator blades and 5 cm digging depth for effective field capacity and field efficiency”
t0“Onion”
Claim · model-written summary
A speed ratio of 1.7 gave the best effective field capacity, cleaning efficiency and specific energy.
- Taxon
- onionAllium cepat0
- Outcome
- effective field capacity, cleaning efficiency and specific energye0
- Value
- 1.7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“speed ratio of 1.7 for effective field capacity, cleaning efficiency and specific energy”
t0“Onion”
Claim · model-written summary
A blade angle of 200 gave the best field efficiency.
- Taxon
- onionAllium cepat0
- Outcome
- field efficiencye0
- Value
- 200e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“blade angle of 200 for field efficiency”
t0“Onion”