Abstract
In a recently started long-term field trial (2002-2011), located in Frick (1000 mm mean annual precipi-tation) near Basle (Switzerland), the effect of reduced tillage on crop yield, weed infestation, and oc-currence of toxigenic fusaria was studied on a heavy soil (45% clay) in a crop rotation under organic farming conditions. Here, we present results of the first two experimental years (2003-2004), which are considered as the conversion period. Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow). In the following year, sunflower yield was enhanced by 5% (p = 0.06) in reduced tilled plots. Reduced tilled plots manifested a higher weed infestation, in particular with Convolvulus arvensis and Stellaria media. With the exception of low levels of Fusarium poae, no toxigenic fusaria were detected in wheat grains possibly due to the excep-tionally dry and hot summer 2003. The deoxynivalenol (DON) content was low in all treatments. While the DON content in wheat straw was increased after reduced tillage, it was decreased after ap-plication of biodynamic preparations (p < 0.05). Overall, we assume that even on heavy soils, reduced tillage systems may be applicable on organic farms, but with a considerably higher input of labour.
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Claims 8
Claim · model-written summary
Wheat yield was 16% higher in ploughed plots than in plots with reduced tillage.
- Taxon
- Wheat
Triticum aestivume1 - Treatment
- ploughed plotse1
- Outcome
- Wheat yielde1
- Direction
- highere1
- Value
- 16%e1
- Comparator
- reduced tillage (chisel and rotary harrow)e1
- Setting
- Fricke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In a recently started long-term field trial (2002-2011), located in Frick (1000 mm mean annual precipi-tation) near Basle (Switzerland), the effect of reduced tillage on crop yield, weed infestation, and oc-currence of toxigenic fusaria was studied on a heavy soil (45% clay) in a crop rotation under organic farming conditions”
e1“Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow)”
Claim · model-written summary
Sunflower yield was enhanced by 5% in reduced tilled plots (p = 0.06).
- Taxon
- sunflower
Helianthus annuuse2 - Treatment
- reduced tilled plotse2
- Outcome
- sunflower yielde2
- Direction
- enhancede2
- Value
- 5%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“In the following year, sunflower yield was enhanced by 5% (p = 0.06) in reduced tilled plots”
Claim · model-written summary
Reduced tilled plots had higher weed infestation, in particular with Convolvulus arvensis and Stellaria media.
- Taxon
- WheatTriticum aestivume1
- Treatment
- Reduced tilled plotse3
- Interactor
- Convolvulus arvensis
.jpg?width=60)
Convolvulus arvensise3weed - Second interactor
- Stellaria media
Stellaria mediae3weed - Outcome
- weed infestatione3
- Direction
- highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow)”
e3“Reduced tilled plots manifested a higher weed infestation, in particular with Convolvulus arvensis and Stellaria media”
Claim · model-written summary
No toxigenic fusaria were detected in wheat grains, except low levels of Fusarium poae, possibly due to a dry and hot summer.
- Taxon
- wheatTriticum aestivume4
- Organ / stage
- wheat grainse4
- Interactor
- Fusarium poae
Fusarium poaee4pathogen - Outcome
- toxigenic fusariae4
- Qualifier
- dry and hot summer 2003e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“With the exception of low levels of Fusarium poae, no toxigenic fusaria were detected in wheat grains possibly due to the excep-tionally dry and hot summer 2003”
Claim · model-written summary
Deoxynivalenol (DON) content was low in all treatments.
- Taxon
- WheatTriticum aestivume1
- Outcome
- deoxynivalenol (DON) contente5
- Qualifier
- low in all treatmentse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow)”
e5“The deoxynivalenol (DON) content was low in all treatments”
Claim · model-written summary
DON content in wheat straw increased after reduced tillage.
- Taxon
- wheatTriticum aestivume6
- Organ / stage
- wheat strawe6
- Treatment
- reduced tillagee6
- Outcome
- DON contente6
- Direction
- increasede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“While the DON content in wheat straw was increased after reduced tillage”
Claim · model-written summary
DON content in wheat straw decreased after application of biodynamic preparations (p < 0.05).
- Taxon
- wheatTriticum aestivume7
- Organ / stage
- wheat strawe7
- Treatment
- biodynamic preparationse7
- Outcome
- DON contente7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“While the DON content in wheat straw was increased after reduced tillage, it was decreased after ap-plication of biodynamic preparations (p < 0.05)”
Claim · model-written summary
Reduced tillage systems may be applicable on organic farms on heavy soils, but with a considerably higher input of labour.
- Taxon
- WheatTriticum aestivume1
- Outcome
- reduced tillage systems may be applicable on organic farmse7
- Qualifier
- considerably higher input of laboure7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Wheat yield was 16% higher (p < 0.001) in ploughed plots than in the plots with reduced tillage (chisel and rotary harrow)”
e7“Overall, we assume that even on heavy soils, reduced tillage systems may be applicable on organic farms, but with a considerably higher input of labour”
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tillage · yield · Helianthus annuus (common sunflower)Positive and negative results
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27 papers in the same direction as this paper · 51 in the opposite direction
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See all 79 papers →tillage · Convolvulus arvensis · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.