Paper · 2020 · Italian Journal of Agronomy

Mechanical and chemical weeding effects on the weed structure in durum wheat

Andrzej Woźniak

2
claims
3
verbatim quotes
6
citations
2
research areas
✓
Open access · cc-by-nc

Abstract

A three-year field experiment was performed to study weed infestation of durum wheat at the stage of emergence and full maturity. Two weeding systems (WS) were used in the post-harvest period: i) mechanical weeding (MW); and ii) chemical weeding (CW). In the MW system, soil underwent shallow ploughing at a depth of 10-12 cm and double harrowing (after ploughing and 3 weeks later), whereas glyphosate only was used in the CW system. In the springtime, in both MW and CW systems, a tillage set consisting in a cultivator, a string roller and harrowing was used. Overall, the number of weeds m2, the number of weed species and the value of weed diversity indices were always higher in MW than in the CW systems in each study year at both the emergence and full maturity stage of durum wheat. The study demonstrated that at the stage of durum wheat emergence, more weeds per m2 occurred in the MW than in the CW system in each study year. Moreover, the MW systems was characterized by a higher number of weed species as well as by a higher value of weed diversity index compared to the CW system.

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

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Claims 2

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Mechanical weeding gave higher weed density, weed species number and weed diversity than chemical weeding in durum wheat.

Treatment
MWe1
Interactor
weedse1weed
Outcome
the number of weeds m2, the number of weed species and the value of weed diversity indicese1
Direction
highere1
Comparator
CW systemse1

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Overall, the number of weeds m2, the number of weed species and the value of weed diversity indices were always higher in MW than in the CW systems in each study year at both the emergence and full maturity stage of durum wheat”

✓ located verbatim in the source · abstract, characters 563–790 · show in text ↑
t0

“Mechanical and chemical weeding effects on the weed structure in durum wheat”

✓ located verbatim in the source · title, characters 0–76 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At durum wheat emergence, mechanical weeding produced more weeds per m2 than chemical weeding in each study year.

Organ / stage
emergencee2
Treatment
MWe2
Interactor
weedse2weed
Outcome
weeds per m2e2
Direction
moree2
Comparator
CW systeme2

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

Triticum turgidum subsp. durum
Triticum turgidum subsp. durum · TaxonSten Porse · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e2

“The study demonstrated that at the stage of durum wheat emergence, more weeds per m2 occurred in the MW than in the CW system in each study year”

✓ located verbatim in the source · abstract, characters 792–936 · show in text ↑

herbicide · weed · Triticum turgidum (rivet wheat)Positive and negative results

8 papers: 6 positive, 2 negative or no effect

1 paper in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

4 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.