Paper · 1991 · Experimental Agriculture

Rain-fed Crop Production Systems of Upland Balochistan: Wheat (Triticum aestivum), Barley (Hordeum vulgare) and Forage Legumes (Vicia species)

D. J. Rees; M. Islam; A. Samiullah; et al.

16
claims
20
verbatim quotes
13
citations
3
research areas
—
Not open access

Abstract

SUMMARY The effects of variety and fertilizer on wheat and barley production, and of inoculation with rhizobium on Vicia crop production under rain-fed conditions were observed in farmers' fields in Balochistan from 1985 to 1988. Weeding and application of phosphate fertilizer had little effect on wheat yields, but in the ‘good‘ rainfall year, 1986/87, application of nitrogen fertilizer resulted in increased economic yields. Barley varieties from Syria generally produced better grain yields and, with the exception of Arabi abiad, poorer straw yields than a local variety. Genotype–environment analyses indicated that Arabi abiad could be expected to produce more grain, similar amounts of straw and larger gross benefits than the local variety in all except the most severe environments, when crop failure was inevitable. V. villosa ssp. dasycarpa showed negligible amounts of cold damage, and produced greater herbage and straw yields than the other legume crops. Inoculation with Rhizobium leguminosarum produced large yield increases in 1986/87. The economic returns from crop production were poor and variable, but the results suggest that the productivity of the crop–livestock system could be increased by greater emphasis on barley, and by the introduction of Arabi abiad barley and V. villosa ssp. dasycarpa . D. J. Rees et al. : Cultivos regadospor la lluvia de las tierras altas de Balochistan .

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Claims 16

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Weeding had little effect on wheat yields.

Treatment
Weedinge0
Outcome
wheat yieldse0
Direction
little effecte0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Weeding and application of phosphate fertilizer had little effect on wheat yields”

✓ located verbatim in the source · abstract, characters 230–311 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phosphate fertilizer had little effect on wheat yields.

Treatment
application of phosphate fertilizere0
Outcome
wheat yieldse0
Direction
little effecte0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Weeding and application of phosphate fertilizer had little effect on wheat yields”

✓ located verbatim in the source · abstract, characters 230–311 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilizer increased economic wheat yields in the good rainfall year.

Treatment
application of nitrogen fertilizere0
Outcome
economic yieldse0
Direction
increasede0
Qualifier
‘good‘ rainfall year, 1986/87e0

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“in the ‘good‘ rainfall year, 1986/87, application of nitrogen fertilizer resulted in increased economic yields”

✓ located verbatim in the source · abstract, characters 317–427 · show in text ↑
t0

“Wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 56–81 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Syrian barley varieties generally yielded more grain than a local variety.

Material
Barley varieties from Syriae0
Outcome
grain yieldse0
Direction
bettere0
Comparator
a local varietye0

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

“Barley varieties from Syria generally produced better grain yields and, with the exception of Arabi abiad, poorer straw yields than a local variety”

✓ located verbatim in the source · abstract, characters 429–576 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Syrian barley varieties other than Arabi abiad generally yielded less straw than a local variety.

Material
Barley varieties from Syriae0
Outcome
straw yieldse0
Direction
poorere0
Qualifier
with the exception of Arabi abiade0
Comparator
a local varietye0

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

“Barley varieties from Syria generally produced better grain yields and, with the exception of Arabi abiad, poorer straw yields than a local variety”

✓ located verbatim in the source · abstract, characters 429–576 · show in text ↑
Associationobservedoriginal resultpositivesimulated

Claim · model-written summary

Arabi abiad was expected to yield more grain than the local variety except under the severest conditions.

Material
Arabi abiade0
Outcome
graine0
Direction
moree0
Qualifier
in all except the most severe environmentse0
Comparator
the local varietye0

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

“Arabi abiad could be expected to produce more grain, similar amounts of straw and larger gross benefits than the local variety in all except the most severe environments”

✓ located verbatim in the source · abstract, characters 623–792 · show in text ↑
t0

“Barley (Hordeum vulgare)”

✓ located verbatim in the source · title, characters 83–107 · show in text ↑
Associationobservedoriginal resultno effectsimulated

Claim · model-written summary

Arabi abiad was expected to yield similar straw to the local variety.

Material
Arabi abiade0
Outcome
strawe0
Direction
similare0
Comparator
the local varietye0

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

“Arabi abiad could be expected to produce more grain, similar amounts of straw and larger gross benefits than the local variety in all except the most severe environments”

✓ located verbatim in the source · abstract, characters 623–792 · show in text ↑
t0

“Barley (Hordeum vulgare)”

✓ located verbatim in the source · title, characters 83–107 · show in text ↑
Associationobservedoriginal resultpositivesimulated

Claim · model-written summary

Arabi abiad was expected to deliver larger gross benefits than the local variety.

Material
Arabi abiade0
Outcome
gross benefitse0
Direction
largere0
Comparator
the local varietye0

Not reportedTaxon

Verbatim

e0

“Arabi abiad could be expected to produce more grain, similar amounts of straw and larger gross benefits than the local variety in all except the most severe environments”

✓ located verbatim in the source · abstract, characters 623–792 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

V. villosa ssp. dasycarpa had negligible cold damage.

Taxon
V. villosa ssp. dasycarpaVicia villosa subsp. variae0
Outcome
cold damagee0

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

Vicia villosa subsp. varia
Vicia villosa subsp. varia · Taxon · picture of the speciesNo machine-readable author provided. Fabelfroh assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“V. villosa ssp. dasycarpa showed negligible amounts of cold damage”

✓ located verbatim in the source · abstract, characters 828–894 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

V. villosa ssp. dasycarpa produced greater herbage yields than other legumes.

Taxon
V. villosa ssp. dasycarpaVicia villosa subsp. variae0
Outcome
herbagee0
Direction
greatere0
Comparator
the other legume cropse0

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

Vicia villosa subsp. varia
Vicia villosa subsp. varia · Taxon · picture of the speciesNo machine-readable author provided. Fabelfroh assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“V. villosa ssp. dasycarpa showed negligible amounts of cold damage, and produced greater herbage and straw yields than the other legume crops”

✓ located verbatim in the source · abstract, characters 828–969 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

V. villosa ssp. dasycarpa produced greater straw yields than other legumes.

Taxon
V. villosa ssp. dasycarpaVicia villosa subsp. variae0
Outcome
strawe0
Direction
greatere0
Comparator
the other legume cropse0

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

Vicia villosa subsp. varia
Vicia villosa subsp. varia · Taxon · picture of the speciesNo machine-readable author provided. Fabelfroh assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“V. villosa ssp. dasycarpa showed negligible amounts of cold damage, and produced greater herbage and straw yields than the other legume crops”

✓ located verbatim in the source · abstract, characters 828–969 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rhizobium inoculation substantially increased Vicia yields in 1986/87.

Taxon
ViciaViciat0
Treatment
Inoculation with Rhizobium leguminosarume0
Interactor
Rhizobium leguminosarumRhizobium leguminosarume0symbiont
Outcome
yielde0
Direction
increasese0
Qualifier
1986/87e0

Not reportedComparator

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

Vicia
Vicia · Taxon · picture of the genus (one of its species)User:Bogdan · Public domain · Wikimedia Commons ↗
Rhizobium leguminosarum
Rhizobium leguminosarum · Interactor · picture from its Wikimedia Commons categoryQaswarah 21 · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Inoculation with Rhizobium leguminosarum produced large yield increases in 1986/87”

✓ located verbatim in the source · abstract, characters 971–1053 · show in text ↑
t0

“Vicia species”

✓ located verbatim in the source · title, characters 128–141 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Economic returns from crop production were poor and variable.

Outcome
economic returns from crop productione0

Not reportedTaxon

Verbatim

e0

“The economic returns from crop production were poor and variable”

✓ located verbatim in the source · abstract, characters 1055–1119 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommended greater emphasis on barley for crop–livestock productivity.

Outcome
greater emphasis on barleye0

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

“productivity of the crop–livestock system could be increased by greater emphasis on barley”

✓ located verbatim in the source · abstract, characters 1154–1244 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommended introducing Arabi abiad barley.

Material
Arabi abiade0
Outcome
introduction of Arabi abiad barleye0

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

“by the introduction of Arabi abiad barley and V. villosa ssp. dasycarpa”

✓ located verbatim in the source · abstract, characters 1250–1321 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors recommended introducing V. villosa ssp. dasycarpa.

Taxon
V. villosa ssp. dasycarpaVicia villosa subsp. variae0
Outcome
introduction of Arabi abiad barley and V. villosa ssp. dasycarpae0

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

Vicia villosa subsp. varia
Vicia villosa subsp. varia · Taxon · picture of the speciesNo machine-readable author provided. Fabelfroh assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“by the introduction of Arabi abiad barley and V. villosa ssp. dasycarpa”

✓ located verbatim in the source · abstract, characters 1250–1321 · show in text ↑

phosphate · yield · Triticum aestivum (wheat)Results differ

24 papers: 17 positive, 7 negative or no effect

6 papers in the same direction as this paper · 17 in the opposite direction

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

herbicide · yield · Triticum aestivum (wheat)Positive and negative results

563 papers: 466 positive, 97 negative or no effect

96 papers in the same direction as this paper · 466 in the opposite direction

  1. positive
  2. positive
  3. positive

559 papers more in this group

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fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this paper · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

3,434 papers more in this group

See all 3,438 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.