Paper · 2005 · Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture)

High yield and low N leaching with barley as a green crop for silage after grass-clover

Elly Møller Hansen; Jørgen Eriksen; F.P. Vinther

2
claims
4
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Danish organic farmers experience increasing difficulties with clover soil fatigue due to continuous cultivation of clover. A solution could be to undersow barley with Italian ryegrass after ploughing of grass-clover where the barley could be used as a green crop for silage (i.e., barley harvested at the beginning of heading), and Italian ryegrass could be used for cutting in autumn. This method offers advantages not only for the farmer but also for the environment. When grass-clover is ploughed there is a high risk of N leaching. However, new field experiments show, that with the suggested method it is possible to reduce leaching to a minimum and simultaneously achieve a high production of roughage.

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Claims 2

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The proposed barley and ryegrass system reduced nitrogen leaching to a minimum.

Treatment
undersow barley with Italian ryegrass after ploughing of grass-clovere1
Outcome
leachinge0
Direction
reducee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“with the suggested method it is possible to reduce leaching to a minimum”

✓ located verbatim in the source · abstract, characters 579–651 · show in text ↑
e1

“undersow barley with Italian ryegrass after ploughing of grass-clover”

✓ located verbatim in the source · abstract, characters 147–216 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The proposed barley and ryegrass system achieved high roughage production.

Treatment
undersow barley with Italian ryegrass after ploughing of grass-clovere1
Outcome
production of roughagee0
Direction
highe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“simultaneously achieve a high production of roughage”

✓ located verbatim in the source · abstract, characters 656–708 · show in text ↑
e1

“undersow barley with Italian ryegrass after ploughing of grass-clover”

✓ located verbatim in the source · abstract, characters 147–216 · show in text ↑

Lolium multiflorum · yield · Hordeum vulgare (barley)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. negative
  2. negative
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Lolium multiflorum · environment: emissions · Hordeum vulgare (barley)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
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tillage · environment: emissions · Hordeum vulgare (barley)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

4 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

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tillage · yield · Hordeum vulgare (barley)Positive and negative results

161 papers: 105 positive, 56 negative or no effect

104 papers in the same direction as this paper · 43 in the opposite direction · 13 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

157 papers more in this group

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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.