Abstract
ABSTRACT Different strategies for mechanical in-row weed control were evaluated in direct-sown and transplanted bulb onions (Allium cepa) in terms of in-row weeds, labour requirements for hand weeding and marketable yield. Transplanted onions generally performed much better than direct sown onions. The best strategies in transplanted onions decreased the hand weeding time by 70% and increased marketable yield by 96% compared with the best strategies in direct-sown onions. In transplanted onions, one weed harrowing and three in-row cultivations with torsion weeders reduced in-row weed numbers by 85%, reduced hand weeding time by 73%, and caused no yield reduction compared with the normal strategy of one weed harrowing and ordinary inter-row cultivation. In direct-sown onions, pre-emergence flame weeding and repeated torsion weeding reduced hand weeding time by 40% and caused no yield reduction compared with flame weeding and inter-row cultivation. The effectiveness of in-row cultivation was very dependent on the timing of treatments. Using transplanted onions and in-row weed control is a way to ensure high yields and reduce labour requirements for hand weeding compared with direct-sown onions and inter-row cultivation.
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Claims 9
Claim · model-written summary
The best transplanted-onion strategies cut hand-weeding time by 70% relative to the best direct-sown strategies.
- Taxon
- onions
Allium cepae0 - Treatment
- transplanted onionse0
- Outcome
- hand weeding timee0
- Direction
- decreasede0
- Value
- 70%e0
- Comparator
- direct-sown onionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best strategies in transplanted onions decreased the hand weeding time by 70% and increased marketable yield by 96% compared with the best strategies in direct-sown onions.”
Claim · model-written summary
The best transplanted-onion strategies raised marketable yield by 96%.
- Taxon
- onionsAllium cepae0
- Treatment
- transplanted onionse0
- Outcome
- marketable yielde0
- Direction
- increasede0
- Value
- 96%e0
- Comparator
- direct-sown onionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best strategies in transplanted onions decreased the hand weeding time by 70% and increased marketable yield by 96% compared with the best strategies in direct-sown onions.”
Claim · model-written summary
Weed harrowing plus three torsion cultivations reduced in-row weeds by 85% in transplanted onions.
- Taxon
- onionsAllium cepae0
- Treatment
- one weed harrowing and three in-row cultivations with torsion weederse0
- Interactor
- weede0weed
- Outcome
- in-row weed numberse0
- Direction
- reducede0
- Value
- 85%e0
- Comparator
- one weed harrowing and ordinary inter-row cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In transplanted onions, one weed harrowing and three in-row cultivations with torsion weeders reduced in-row weed numbers by 85%, reduced hand weeding time by 73%, and caused no yield reduction compared with the normal strategy of one weed harrowing and ordinary inter-row cultivation.”
Claim · model-written summary
That strategy reduced hand-weeding time by 73%.
- Taxon
- onionsAllium cepae0
- Treatment
- one weed harrowing and three in-row cultivations with torsion weederse0
- Outcome
- hand weeding timee0
- Direction
- reducede0
- Value
- 73%e0
- Comparator
- one weed harrowing and ordinary inter-row cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In transplanted onions, one weed harrowing and three in-row cultivations with torsion weeders reduced in-row weed numbers by 85%, reduced hand weeding time by 73%, and caused no yield reduction compared with the normal strategy of one weed harrowing and ordinary inter-row cultivation.”
Claim · model-written summary
That strategy caused no yield reduction.
- Taxon
- onionsAllium cepae0
- Treatment
- one weed harrowing and three in-row cultivations with torsion weederse0
- Outcome
- yielde0
- Direction
- no yield reductione0
- Comparator
- one weed harrowing and ordinary inter-row cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In transplanted onions, one weed harrowing and three in-row cultivations with torsion weeders reduced in-row weed numbers by 85%, reduced hand weeding time by 73%, and caused no yield reduction compared with the normal strategy of one weed harrowing and ordinary inter-row cultivation.”
Claim · model-written summary
Flame and repeated torsion weeding in direct-sown onions reduced hand-weeding time by 40%.
- Taxon
- onionsAllium cepae0
- Treatment
- pre-emergence flame weeding and repeated torsion weedinge0
- Outcome
- hand weeding timee0
- Direction
- reducede0
- Value
- 40%e0
- Comparator
- flame weeding and inter-row cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In direct-sown onions, pre-emergence flame weeding and repeated torsion weeding reduced hand weeding time by 40% and caused no yield reduction compared with flame weeding and inter-row cultivation.”
Claim · model-written summary
The same direct-sown strategy caused no yield reduction.
- Taxon
- onionsAllium cepae0
- Treatment
- pre-emergence flame weeding and repeated torsion weedinge0
- Outcome
- yielde0
- Direction
- no yield reductione0
- Comparator
- flame weeding and inter-row cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In direct-sown onions, pre-emergence flame weeding and repeated torsion weeding reduced hand weeding time by 40% and caused no yield reduction compared with flame weeding and inter-row cultivation.”
Claim · model-written summary
In-row cultivation effectiveness depended strongly on treatment timing.
- Taxon
- onionsAllium cepat0
- Treatment
- timing of treatmentse0
- Outcome
- effectiveness of in-row cultivatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effectiveness of in-row cultivation was very dependent on the timing of treatments.”
t0“Bulb Onions”
Claim · model-written summary
The authors recommend transplanting and in-row weed control to maintain yield and reduce weeding labor.
- Taxon
- onionsAllium cepae0
- Outcome
- ensure high yields and reduce labour requirements for hand weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Using transplanted onions and in-row weed control is a way to ensure high yields and reduce labour requirements for hand weeding compared with direct-sown onions and inter-row cultivation.”
The same questions in other papers
herbicide · yield · Allium cepa (onion)Results differ
12 papers in the same direction as this paper · 75 reporting no difference from an alternative
- positive
- positive
- positive
84 papers more in this group
See all 88 papers →transplanting · quality: postharvest · Allium cepa (onion)Results agree
14 papers in the same direction as this paper
- positive
- positive
- positive
11 papers more in this group
See all 15 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.