Paper · 2012 · Planta Daninha

Brachiaria ruziziensis and herbicide on the yield of upland rice

A.S. Nascente; C.M. Guimarães; T. Cobucci; et al.

6
claims
6
verbatim quotes
16
citations
3
research areas
✓
Open access · cc-by-nc

Abstract

The correct management of cover crops in no-tillage aims to obtain greater benefits with its introduction in agricultural systems. The use of forage species such as Brachiaria, due to the large amount of biomass and for persisting longer on the ground, has become a good option. In this sense, an important point is the time interval between the cover desiccation with glyphosate and planting of rice in order to obtain higher operating income in the sowing, greater availability of nutrients, greater presence of straw on the soil surface, and lower release of possible allelopathic substances. The objective of this study was to assess the effect of the management of B. ruziziensis, with or without herbicide, preceding the crop planting, in the yield components and yield of rice. The trial was conducted in greenhouse conditions and consisted of three types of management of B. ruziziensis before sowing rice. B. ruziziensis showed linear growth and the presence of large amounts of its dry matter biomass on the soil surface was detrimental to rice yield; B. ruziziensis management close to planting caused a significant reduction in rice yield; the management of B. ruziziensis with herbicides should be conducted with more than 20 days before planting rice; the management of B. ruziziensis for the removal of its leaves with or without herbicide should be carried out with 10 or more days before planting rice, and the correct management of B. ruziziensis at the right time allowed for significant increases in the rice yield.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

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 6

Observationobservedoriginal resultmeasured

Claim · model-written summary

B. ruziziensis grew linearly.

Taxon
B. ruziziensisUrochloa ruziziensise0
Outcome
linear growthe0

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

Urochloa ruziziensis
Urochloa ruziziensis · TaxonKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“B. ruziziensis showed linear growth”

✓ located verbatim in the source · abstract, characters 915–950 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Large amounts of Brachiaria dry biomass on the soil surface harmed rice yield.

Interactor
B. ruziziensisUrochloa ruziziensise0weed
Outcome
rice yielde0
Direction
detrimentale0
Qualifier
large amounts of its dry matter biomass on the soil surfacee0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa ruziziensis
Urochloa ruziziensis · InteractorKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“B. ruziziensis showed linear growth and the presence of large amounts of its dry matter biomass on the soil surface was detrimental to rice yield”

✓ located verbatim in the source · abstract, characters 915–1060 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Brachiaria management close to rice planting significantly reduced rice yield.

Treatment
B. ruziziensis management close to plantinge0
Interactor
B. ruziziensisUrochloa ruziziensise0weed
Outcome
rice yielde0
Direction
reductione0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa ruziziensis
Urochloa ruziziensis · InteractorKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“B. ruziziensis management close to planting caused a significant reduction in rice yield”

✓ located verbatim in the source · abstract, characters 1062–1150 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Herbicide management of Brachiaria should occur more than 20 days before planting rice.

Interactor
B. ruziziensisUrochloa ruziziensise0weed
Outcome
more than 20 days before planting ricee0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa ruziziensis
Urochloa ruziziensis · InteractorKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“the management of B. ruziziensis with herbicides should be conducted with more than 20 days before planting rice”

✓ located verbatim in the source · abstract, characters 1152–1264 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Removing Brachiaria leaves with or without herbicide should occur at least 10 days before rice planting.

Interactor
B. ruziziensisUrochloa ruziziensise0weed
Outcome
10 or more days before planting ricee0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa ruziziensis
Urochloa ruziziensis · InteractorKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“the management of B. ruziziensis for the removal of its leaves with or without herbicide should be carried out with 10 or more days before planting rice”

✓ located verbatim in the source · abstract, characters 1266–1418 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Correctly timed Brachiaria management significantly increased rice yield.

Treatment
correct management of B. ruziziensis at the right timee0
Interactor
B. ruziziensisUrochloa ruziziensise0weed
Outcome
rice yielde0
Direction
increasese0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Urochloa ruziziensis
Urochloa ruziziensis · InteractorKym Nicolson · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“the correct management of B. ruziziensis at the right time allowed for significant increases in the rice yield”

✓ located verbatim in the source · abstract, characters 1424–1534 · show in text ↑

Urochloa ruziziensis · yield · Oryza sativa (rice)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 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.