Paper · 1990 · Agronomy Journal

Barley, Lentil, and Flax Yield under Different Intercropping Systems

Bijan K. Mandal; Susanta K. Mahapatra

8
claims
10
verbatim quotes
20
citations
1
research areas
—
Not open access

Abstract

Abstract Intercropping is being adopted as a method of crop production throughout the developing tropics. The objective of this experiment was to assess how the productivity of intercrops was affected by the interaction of irrigation levels and mulches, compared to monocrops. Six‐rowed barley ( Hordeum vulgare L.) was intercropped with lentil ( Lens culinaris Medik) and flax ( Linum usitatissimum L.) with two levels of irrigations [(i) zero and (ii) one irrigation applied 35 d after planting] and two levels of mulch [(i) no mulch and (ii) rice straw mulch at the rate of approximately 7 Mg/ha −1 ]. Monocrop of each species were also grown. Seed yield of the monocrops were higher than their intercrop yields. Intercropped barley yielded 73 to 81% of the yield to monoculture. Intercropped lentil yielded 30 to 34% of the yield of monoculture, whereas intercropped seed yield of flax ranged from 27 to 31% of monoculture. Yield increased from one application of irrigation ranged from 12 to 21% of zero irrigation. The increase in yield due to straw mulch was 11 to 17% higher over no mulch. The barley‐lentil intercrop recorded higher values of land equivalent ratio (LER) and monetary advantage (MA), and had higher intercropping advantage of area time equivalent ratio (ATER) than the barley‐flax intercrop.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Barley seed yield under intercropping was 73 to 81% of monoculture yield.

Treatment
Intercroppede0
Outcome
yieldede0
Direction
lowerinferrede0
Value
73 to 81%e0
Comparator
monoculturee0

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

“Intercropped barley yielded 73 to 81% of the yield to monoculture”

✓ located verbatim in the source · abstract, characters 716–781 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lentil seed yield under intercropping was 30 to 34% of monoculture yield.

Taxon
lentilLens culinarise0
Treatment
Intercroppede0
Outcome
yieldede0
Direction
lowerinferrede0
Value
30 to 34%e0
Comparator
monoculturee0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗

Verbatim

e0

“Intercropped lentil yielded 30 to 34% of the yield of monoculture”

✓ located verbatim in the source · abstract, characters 783–848 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Flax seed yield under intercropping was 27 to 31% of monoculture yield.

Treatment
intercroppede0
Outcome
seed yielde0
Direction
lowerinferrede0
Value
27 to 31%e0
Comparator
monoculturee0

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

Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“intercropped seed yield of flax ranged from 27 to 31% of monoculture”

✓ located verbatim in the source · abstract, characters 858–926 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

One irrigation increased yield by 12 to 21% over zero irrigation.

Treatment
one application of irrigatione0
Outcome
Yielde0
Direction
increasede0
Value
12 to 21%e0
Comparator
zero irrigatione0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗
Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Yield increased from one application of irrigation ranged from 12 to 21% of zero irrigation”

✓ located verbatim in the source · abstract, characters 928–1019 · show in text ↑
t0

“Barley, Lentil, and Flax”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Straw mulch increased yield by 11 to 17% over no mulch.

Treatment
straw mulche0
Outcome
yielde0
Direction
increasee0
Value
11 to 17%e0
Comparator
no mulche0

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

Lens culinaris
Lens culinaris · TaxonUser:Justinc · CC BY-SA 2.5 · Wikimedia Commons ↗
Linum usitatissimum
Linum usitatissimum · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The increase in yield due to straw mulch was 11 to 17% higher over no mulch”

✓ located verbatim in the source · abstract, characters 1021–1096 · show in text ↑
t0

“Barley, Lentil, and Flax”

✓ located verbatim in the source · title, characters 0–24 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The barley-lentil intercrop had a higher land equivalent ratio than the barley-flax intercrop.

Treatment
barley‐lentil intercrope0
Outcome
land equivalent ratio (LER)e0
Direction
highere0
Comparator
barley‐flax intercrope0

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

“The barley‐lentil intercrop recorded higher values of land equivalent ratio (LER) and monetary advantage (MA), and had higher intercropping advantage of area time equivalent ratio (ATER) than the barley‐flax intercrop”

✓ located verbatim in the source · abstract, characters 1098–1315 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The barley-lentil intercrop had a higher monetary advantage than barley-flax.

Treatment
barley‐lentil intercrope0
Outcome
monetary advantage (MA)e0
Direction
highere0
Comparator
barley‐flax intercrope0

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

“The barley‐lentil intercrop recorded higher values of land equivalent ratio (LER) and monetary advantage (MA), and had higher intercropping advantage of area time equivalent ratio (ATER) than the barley‐flax intercrop”

✓ located verbatim in the source · abstract, characters 1098–1315 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The barley-lentil intercrop had a higher area time equivalent ratio than barley-flax.

Treatment
barley‐lentil intercrope0
Outcome
area time equivalent ratio (ATER)e0
Direction
highere0
Comparator
barley‐flax intercrope0

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

“The barley‐lentil intercrop recorded higher values of land equivalent ratio (LER) and monetary advantage (MA), and had higher intercropping advantage of area time equivalent ratio (ATER) than the barley‐flax intercrop”

✓ located verbatim in the source · abstract, characters 1098–1315 · show in text ↑

organic · yield · Lens culinaris (lentil)Results differ

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

irrigation · yield · Lens culinaris (lentil)Results differ

32 papers: 29 positive, 3 negative or no effect

28 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

28 papers more in this group

See all 32 papers →

intercropping · yield · Hordeum vulgare (barley)Results differ

49 papers: 36 positive, 13 negative or no effect

35 papers in the same direction as this paper · 12 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

45 papers more in this group

See all 49 papers →

irrigation · yield · Hordeum vulgare (barley)Results differ

109 papers: 83 positive, 26 negative or no effect

82 papers in the same direction as this paper · 26 in the opposite direction

  1. no effect
  2. negative
  3. negative

105 papers more in this group

See all 109 papers →

intercropping · yield · Linum usitatissimum (flax)Positive and negative results

15 papers: 6 positive, 9 negative or no effect

8 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

irrigation · yield · Linum usitatissimum (flax)Positive and negative results

28 papers: 25 positive, 3 negative or no effect

24 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

24 papers more in this group

See all 28 papers →

intercropping · yield · Lens culinaris (lentil)Positive and negative results

34 papers: 23 positive, 11 negative or no effect

10 papers in the same direction as this paper · 23 in the opposite direction

  1. positive
  2. negative
  3. positive

30 papers more in this group

See all 34 papers →

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

36 papers: 29 positive, 7 negative or no effect

28 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

32 papers more in this group

See all 36 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.