Abstract
W ang L, G ruber S & C laupein W (2012). Effects of woodchip mulch and barley intercropping on weeds in lentil crops. Weed Research 52 , 161–168. Summary The effect of woodchip mulch on weed infestation and crop yield of lentil ( Lens culinaris ) was tested in a 2‐year field experiment at the organic research station Kleinhohenheim, University of Hohenheim, Germany, in 2009 and 2010. The treatments included no mulch and an amount of 160 m 3 ha −1 (fresh matter) woodchips (a mixture of hedgerow shrub species) applied both in spring‐sown lentil sole cropping and in lentil–barley mixed cropping systems after the crops were well established. Averaged over the two years, woodchip mulch reduced weed biomass and weed density (plants m −2 ) in both cropping systems, with a reduction by 43% and 29% (sole), and by 51% and 30% (mixed) respectively. Compared with lentil sole cropping, lentil–barley mixed cropping decreased weed biomass significantly; however, there was no effect on weed density. Lentil grain yield from sole and mixed cropping was 3.0–3.4 t ha −1 and 2.1–2.2 t ha −1 in 2009 and 1.0–1.1 t ha −1 and 0.8–0.9 t ha −1 in 2010. Barley grain yield was 1.4 t ha −1 in 2009 and 0.7 t ha −1 in 2010. Despite decreasing weeds, the mulch did not improve grain yields of lentil or barley in mixed or sole cropping. In conclusion, the combination of woodchip mulch and mixed cropping is useful to reduce weed infestation in cropping systems where chemical or mechanical weed control is not possible and for crops with a low capacity for competition against weeds.
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Claims 15
Claim · model-written summary
Woodchip mulch reduced weed biomass by 43% in sole-cropped lentil.
- Taxon
- lentil ( Lens culinaris )
Lens culinarise1 - Treatment
- woodchip mulche0
- Outcome
- weed biomasse0
- Direction
- reducede0
- Value
- 43%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“woodchip mulch reduced weed biomass and weed density (plants m −2 ) in both cropping systems, with a reduction by 43% and 29% (sole), and by 51% and 30% (mixed) respectively”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Woodchip mulch reduced weed density by 29% in sole-cropped lentil.
- Taxon
- lentil ( Lens culinaris )Lens culinarise1
- Treatment
- woodchip mulche0
- Outcome
- weed densitye0
- Direction
- reducede0
- Value
- 29%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“woodchip mulch reduced weed biomass and weed density (plants m −2 ) in both cropping systems, with a reduction by 43% and 29% (sole), and by 51% and 30% (mixed) respectively”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Woodchip mulch reduced weed biomass by 51% in mixed lentil-barley cropping.
- Taxon
- lentil ( Lens culinaris )Lens culinarise1
- Treatment
- woodchip mulche0
- Outcome
- weed biomasse0
- Direction
- reducede0
- Value
- 51%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“woodchip mulch reduced weed biomass and weed density (plants m −2 ) in both cropping systems, with a reduction by 43% and 29% (sole), and by 51% and 30% (mixed) respectively”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Woodchip mulch reduced weed density by 30% in mixed lentil-barley cropping.
- Taxon
- lentil ( Lens culinaris )Lens culinarise1
- Treatment
- woodchip mulche0
- Outcome
- weed densitye0
- Direction
- reducede0
- Value
- 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“woodchip mulch reduced weed biomass and weed density (plants m −2 ) in both cropping systems, with a reduction by 43% and 29% (sole), and by 51% and 30% (mixed) respectively”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Barley intercropping significantly reduced weed biomass relative to lentil sole cropping.
- Taxon
- lentil ( Lens culinaris )Lens culinarise1
- Treatment
- lentil–barley mixed croppinge0
- Outcome
- weed biomasse0
- Direction
- decreasede0
- Comparator
- lentil sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with lentil sole cropping, lentil–barley mixed cropping decreased weed biomass significantly”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Barley intercropping had no effect on weed density.
- Taxon
- lentil ( Lens culinaris )Lens culinarise1
- Treatment
- lentil–barley mixed croppinge0
- Outcome
- weed densitye0
- Direction
- no effecte0
- Comparator
- lentil sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with lentil sole cropping, lentil–barley mixed cropping decreased weed biomass significantly; however, there was no effect on weed density”
e1“lentil ( Lens culinaris )”
Claim · model-written summary
Lentil yield in 2009 was 3.0–3.4 t ha −1 in sole cropping.
- Taxon
- LentilLens culinarise0
- Outcome
- grain yielde0
- Value
- 3.0–3.4 t ha −1e0
- Qualifier
- solee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lentil grain yield from sole and mixed cropping was 3.0–3.4 t ha −1 and 2.1–2.2 t ha −1 in 2009”
Claim · model-written summary
Lentil yield in 2009 was 2.1–2.2 t ha −1 in mixed cropping.
- Taxon
- LentilLens culinarise0
- Outcome
- grain yielde0
- Value
- 2.1–2.2 t ha −1e0
- Qualifier
- mixed croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lentil grain yield from sole and mixed cropping was 3.0–3.4 t ha −1 and 2.1–2.2 t ha −1 in 2009”
Claim · model-written summary
Lentil yield in 2010 was 1.0–1.1 t ha −1 in sole cropping.
- Taxon
- LentilLens culinarise1
- Outcome
- grain yielde1
- Value
- 1.0–1.1 t ha −1e0
- Qualifier
- solee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.0–1.1 t ha −1 and 0.8–0.9 t ha −1 in 2010”
e1“Lentil grain yield from sole and mixed cropping”
Claim · model-written summary
Lentil yield in 2010 was 0.8–0.9 t ha −1 in mixed cropping.
- Taxon
- LentilLens culinarise1
- Outcome
- grain yielde1
- Value
- 0.8–0.9 t ha −1e0
- Qualifier
- mixed croppinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1.0–1.1 t ha −1 and 0.8–0.9 t ha −1 in 2010”
e1“Lentil grain yield from sole and mixed cropping”
Claim · model-written summary
Barley yield was 1.4 t ha −1 in 2009.
- Taxon
- Barley
.jpg?width=60)
Hordeum vulgaree0 - Outcome
- grain yielde0
- Value
- 1.4 t ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Barley grain yield was 1.4 t ha −1 in 2009”
Claim · model-written summary
Barley yield was 0.7 t ha −1 in 2010.
- Taxon
- BarleyHordeum vulgaree0
- Outcome
- grain yielde0
- Value
- 0.7 t ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Barley grain yield was 1.4 t ha −1 in 2009 and 0.7 t ha −1 in 2010”
Claim · model-written summary
Mulch did not improve lentil grain yield.
- Taxon
- lentilLens culinarise0
- Treatment
- mulche0
- Outcome
- grain yieldse0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mulch did not improve grain yields of lentil or barley in mixed or sole cropping”
Claim · model-written summary
Mulch did not improve barley grain yield.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- mulche0
- Outcome
- grain yieldse0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mulch did not improve grain yields of lentil or barley in mixed or sole cropping”
Claim · model-written summary
The authors recommend combining mulch and mixed cropping where other weed controls are unavailable.
- Outcome
- combination of woodchip mulch and mixed croppinge0
- Qualifier
- where chemical or mechanical weed control is not possiblee0
Not reportedTaxon
Verbatim
e0“the combination of woodchip mulch and mixed cropping is useful to reduce weed infestation in cropping systems where chemical or mechanical weed control is not possible”
The same questions in other papers
mulching · yield · Hordeum vulgare (barley)Results differ
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- positive
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See all 14 papers →intercropping · weed · Lens culinaris (lentil)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
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See all 6 papers →mulching · yield · Lens culinaris (lentil)Positive and negative results
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- no effect
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See all 8 papers →mulching · weed · Lens culinaris (lentil)Results agree
1 paper in the same direction as this paper
- positive
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.