Abstract
The present study aimed to assess the effect of tillage systems and crop residues on grain yield and weed infestation of spring barley. The experiment was established with the method of randomized sub-blocks. The main experimental factor was the tillage system (TS): conventional tillage (CT), reduced tillage (RT), and no-tillage (NT). The second experimental factor included plots with crop residues (CR): straw (S) or without straw (WS). A higher grain yield of barley was determined in the RT than NT system. The RT system allowed producing a higher spike number and a higher 1000 grain weight. A higher grain yield was also obtained on the plots with straw (S) than without straw (WS). Greater weed density in barley stands was determined on RT and NT plots without crop residues (WS), whereas the lowest one was found on the CT plots with the residues (S). The air-dry weight of weeds was higher on the NT plots without crop residues (WS) than on the other plots, while the lowest air-dry weight of weeds was determined on the CT plots with the residues (S). The biodiversity of weeds in a barley stand was greater on the WS than on the S plots.
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Claims 9
Claim · model-written summary
Reduced tillage produced higher barley grain yield than no tillage.
- Taxon
- Spring barley
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Hordeum vulgaret0 - Treatment
- RTe0
- Outcome
- grain yield of barleye0
- Direction
- highere0
- Comparator
- NTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“A higher grain yield of barley was determined in the RT than NT system.”
t0“Spring barley”
Claim · model-written summary
Reduced tillage increased barley spike number.
- Taxon
- Spring barleyHordeum vulgaret0
- Treatment
- RTe0
- Outcome
- spike numbere0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RT system allowed producing a higher spike number and a higher 1000 grain weight.”
t0“Spring barley”
Claim · model-written summary
Reduced tillage increased barley 1000 grain weight.
- Taxon
- Spring barleyHordeum vulgaret0
- Treatment
- RTe0
- Outcome
- 1000 grain weighte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The RT system allowed producing a higher spike number and a higher 1000 grain weight.”
t0“Spring barley”
Claim · model-written summary
Barley plots with straw had higher grain yield than plots without straw.
- Taxon
- Spring barleyHordeum vulgaret0
- Treatment
- straw (S)e0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- without straw (WS)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A higher grain yield was also obtained on the plots with straw (S) than without straw (WS).”
t0“Spring barley”
Claim · model-written summary
Weed density was greater in barley stands under reduced or no tillage without residues.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- RT and NT plots without crop residues (WS)e0
- Interactor
- weede0weed
- Outcome
- weed density in barley standse0
- Direction
- Greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater weed density in barley stands was determined on RT and NT plots without crop residues (WS), whereas the lowest one was found on the CT plots with the residues (S).”
Claim · model-written summary
Conventional tillage with residues had the lowest weed density in barley stands.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- CT plots with the residues (S)e0
- Interactor
- weede0weed
- Outcome
- weed density in barley standse0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Greater weed density in barley stands was determined on RT and NT plots without crop residues (WS), whereas the lowest one was found on the CT plots with the residues (S).”
Claim · model-written summary
Weed air-dry weight was higher under no tillage without residues than on other barley plots.
- Taxon
- Spring barleyHordeum vulgaret0
- Treatment
- NT plots without crop residues (WS)e0
- Interactor
- weedse0weed
- Outcome
- air-dry weight of weedse0
- Direction
- highere0
- Comparator
- other plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The air-dry weight of weeds was higher on the NT plots without crop residues (WS) than on the other plots, while the lowest air-dry weight of weeds was determined on the CT plots with the residues (S).”
t0“Spring barley”
Claim · model-written summary
Conventional tillage with residues had the lowest weed air-dry weight.
- Taxon
- Spring barleyHordeum vulgaret0
- Treatment
- CT plots with the residues (S)e0
- Interactor
- weedse0weed
- Outcome
- air-dry weight of weedse0
- Direction
- loweste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The air-dry weight of weeds was higher on the NT plots without crop residues (WS) than on the other plots, while the lowest air-dry weight of weeds was determined on the CT plots with the residues (S).”
t0“Spring barley”
Claim · model-written summary
Weed biodiversity in barley stands was greater without straw than with straw.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- WSe0
- Interactor
- weedse0weed
- Outcome
- biodiversity of weedse0
- Direction
- greatere0
- Comparator
- S plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biodiversity of weeds in a barley stand was greater on the WS than on the S plots.”
The same questions in other papers
tillage · yield · Hordeum vulgare (barley)Positive and negative results
104 papers in the same direction as this paper · 43 in the opposite direction · 13 reporting no difference from an alternative
- positive
- positive
- no effect
157 papers more in this group
See all 161 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.