Paper · 2020 · Australian Journal of Crop Science

Intercropping of sorghum with Paiaguas palisadegrass in a crop-livestock integration system for pasture recovery

Charles Barbosa Santos; Kátia Aparecida de Pinho Costa; Wender Ferreira de Souza; et al.

6
claims
6
verbatim quotes
13
citations
1
research areas
✓
Open access

Abstract

Intercropping systems have become an interesting alternative for grain and forage production because they are sustainable systems that reduce carbon emissions in degraded pasture areas. However, few studies have used forage species recently introduced into the market, and more studies that assess the performances of these species in integrated systems are needed. Therefore, the objective of this study was to evaluate the agronomic characteristics of intercropped sorghum and Paiaguas palisadegrass (including the species name) in a crop-livestock integration system for pasture recovery. The field experiment was conducted in the municipality of Rio Verde, Goiás, Brazil, using a randomized block design with four replications. The treatments consisted of the following forage systems: monocropping of sorghum, monocropping of Paiaguas palisadegrass, row intercropping of sorghum with Paiaguas palisadegrass, interrow intercropping of sorghum with Paiaguas palisadegrass and intercropping of sorghum with oversown Paiaguas palisadegrass. To obtain a desired population of 240,000 plants ha-1, 12 seeds of sorghum and 5 kg of viable pure seeds of the forage species were planted per meter and hectare, respectively. The growth of Paiaguas palisadegrass in the same row as sorghum reduced the sorghum grain yield. The intercropping of sorghum with oversown Paiaguas palisadegrass hindered the initial development of Paiaguas palisadegrass in terms of plant height and number of tillers due to shading, and this effect was reflected in the dry mass production. Row and interrow intercropping provided higher dry mass production without affecting the forage quality. Therefore, the interrow intercropping of sorghum with Paiaguas palisadegrass was found to be a promising agricultural technique for grain and forage production that could be used for the establishment of new pastures or pasture recovery.

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Claims 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Growing Paiaguas palisadegrass in the sorghum row reduced sorghum grain yield.

Taxon
sorghumSorghume0
Treatment
Paiaguas palisadegrass in the same rowe0
Outcome
sorghum grain yielde0
Direction
reducede0

Not reportedComparator

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The growth of Paiaguas palisadegrass in the same row as sorghum reduced the sorghum grain yield”

✓ located verbatim in the source · abstract, characters 1219–1314 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Oversown intercropping hindered early Paiaguas palisadegrass height and tiller development through shading.

Taxon
Paiaguas palisadegrasse0
Treatment
intercropping of sorghum with oversown Paiaguas palisadegrasse0
Outcome
plant height and number of tillerse0
Direction
hinderede0
Qualifier
due to shadinge0

Not reportedComparator

Verbatim

e0

“The intercropping of sorghum with oversown Paiaguas palisadegrass hindered the initial development of Paiaguas palisadegrass in terms of plant height and number of tillers due to shading”

✓ located verbatim in the source · abstract, characters 1316–1502 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The suppressed early development of oversown Paiaguas palisadegrass was reflected in dry mass production.

Outcome
dry mass productione0

Not reportedTaxonDirection

Verbatim

e0

“this effect was reflected in the dry mass production”

✓ located verbatim in the source · abstract, characters 1508–1560 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Row and interrow intercropping yielded higher dry mass production.

Treatment
Row and interrow intercroppinge0
Outcome
dry mass productione0
Direction
highere0

Not reportedTaxonComparator

Verbatim

e0

“Row and interrow intercropping provided higher dry mass production without affecting the forage quality”

✓ located verbatim in the source · abstract, characters 1562–1665 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Row and interrow intercropping did not affect forage quality.

Treatment
Row and interrow intercroppinge0
Outcome
forage qualitye0
Direction
without affectinge0

Not reportedTaxonComparator

Verbatim

e0

“Row and interrow intercropping provided higher dry mass production without affecting the forage quality”

✓ located verbatim in the source · abstract, characters 1562–1665 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors identify interrow sorghum–Paiaguas palisadegrass intercropping as promising for grain and forage production and pasture establishment or recovery.

Taxon
sorghumSorghume0
Treatment
interrow intercropping of sorghum with Paiaguas palisadegrasse0
Outcome
establishment of new pastures or pasture recoverye0

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

Sorghum
Sorghum · Taxon · picture of the genus (one of its species)Evelyn Simak · CC BY-SA 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the interrow intercropping of sorghum with Paiaguas palisadegrass was found to be a promising agricultural technique for grain and forage production that could be used for the establishment of new pastures or pasture recovery”

✓ located verbatim in the source · abstract, characters 1678–1903 · show in text ↑

Urochloa brizantha · yield · SorghumPositive and negative results

6 papers: 2 positive, 4 negative or no effect

3 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

intercropping · yield · SorghumResults differ

165 papers: 118 positive, 47 negative or no effect

117 papers in the same direction as this paper · 42 in the opposite direction · 5 reporting no difference from an alternative

  1. no effect
  2. negative
  3. positive

161 papers more in this group

See all 165 papers →

intercropping · quality: grain · SorghumPositive and negative results

8 papers: 5 positive, 3 negative or no effect

2 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 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.