Paper · 2007 · Weed Technology

Weed Management in North Carolina Peanuts (Arachis Hypogaea) withS-metolachlor, Diclosulam, Flumioxazin, and Sulfentrazone Systems

Scott B. Clewis; Wesley J. Everman; David L. Jordan; et al.

20
claims
40
verbatim quotes
28
citations
2
research areas
—
Not open access

Abstract

Experiments were conducted at the Upper Coastal Plain Research Station near Rocky Mount and at the Peanut Belt Research Station near Lewiston-Woodville in 2002 and 2003. Peanut injury was minimal (< 5%) with all soil-applied programs. S-Metolachlor PRE alone or in mixture with sulfentrazone, diclosulam, or flumioxazin controlled annual grasses similarly (66 to 87%). The addition of imazapic plus 2,4-DB POST increased annual grass control (> 93%). Sulfentrazone or diclosulam in mixture with S-metolachlor were the best PRE options, with 94% and 92% control of yellow and purple nutsedge, respectively, with flumioxazin being least effective at 70%. Diclosulam and flumioxazin in mixture with S-metolachlor were the best PRE options, with 99% and 93%, respectively for common ragweed control, whereas sulfentrazone was the least effective at 65%. S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazin PRE were similar (87 to 90%) for common lambsquarters control. S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazin provided similar levels of entireleaf, ivyleaf, pitted, and tall morningglory control (87, 86, and 87%, respectively) and better than S-metolachlor alone at 64%. Flumioxazin in mixture with S-metolachlor was the best PRE option for control of Palmer amaranth at 96%, whereas diclosulam with S-metolachlor was the best PRE option for control of eclipta at 100%. The prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST and imazapic plus 2,4-DB POST were similar for all morningglory species (> 96%) and Palmer amaranth control (93 and 97%, respectively). Peanut treated with S-metolachlor plus diclosulam PRE numerically yielded the highest at 3,210 kg/ha, but were statistically equivalent to S-metolachlor plus flumioxazin PRE at 3,040 kg/ha. Peanut treated with imazapic plus 2,4-DB POST yielded the most at 3,400 kg/ha, while peanut treated with a prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST yielded less (3,070 kg/ha).Nomenclature: 2,4-DB, acifluorfen, bentazon, diclosulam, flumioxazin, imazapic, S-metolachlor, sulfentrazone, common lambsquarters, Chenopodium album L. CHEAL, common ragweed, Ambrosia artemisiifolia L. AMBEL, eclipta, Eclipta prostrata L. ECLAL, entireleaf morningglory, Ipomoea hederacea var. integriuscula Gray IPOHG, ivyleaf morningglory, Ipomoea hederacea (L.) Jacq. IPOHE, Palmer amaranth, Amaranthus palmeri S. Wats. AMAPA, pitted morningglory, Ipomoea lacunosa L. IPOLA, purple nutsedge, Cyperus rotundus L. CYPRO, tall morningglory, Ipomoea purpurea (L.) Roth PHBPU, yellow nutsedge, Cyperus esculentus L. CYPES, peanut, Arachis hypogaea L., ‘NCV-11’, ‘VA-98R’

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 20

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All soil-applied programs caused less than 5% peanut injury.

Treatment
all soil-applied programse0
Outcome
Peanut injurye0
Direction
minimale0
Value
< 5%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut injury was minimal (< 5%) with all soil-applied programs”

✓ located verbatim in the source · abstract, characters 170–233 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S-Metolachlor PRE alone or with the listed herbicides controlled annual grasses by 66 to 87%.

Treatment
S-Metolachlor PRE alone or in mixture with sulfentrazone, diclosulam, or flumioxazine0
Interactor
annual grassese0weed
Outcome
annual grassese0
Direction
controllede0
Value
66 to 87%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“S-Metolachlor PRE alone or in mixture with sulfentrazone, diclosulam, or flumioxazin controlled annual grasses similarly (66 to 87%)”

✓ located verbatim in the source · abstract, characters 235–367 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding imazapic plus 2,4-DB POST raised annual grass control above 93%.

Treatment
imazapic plus 2,4-DB POSTe0
Interactor
annual grasse0weed
Outcome
annual grass controle0
Direction
increasede0
Value
> 93%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The addition of imazapic plus 2,4-DB POST increased annual grass control (> 93%)”

✓ located verbatim in the source · abstract, characters 369–449 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfentrazone with S-metolachlor gave 94% nutsedge control.

Treatment
Sulfentrazone or diclosulam in mixture with S-metolachlore0
Interactor
yellow and purple nutsedgee0weed
Outcome
control of yellow and purple nutsedgee0
Direction
beste0
Value
94%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Sulfentrazone or diclosulam in mixture with S-metolachlor were the best PRE options, with 94% and 92% control of yellow and purple nutsedge”

✓ located verbatim in the source · abstract, characters 451–590 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Diclosulam with S-metolachlor gave 92% nutsedge control.

Treatment
diclosulam in mixture with S-metolachlore0
Interactor
yellow and purple nutsedgee0weed
Outcome
control of yellow and purple nutsedgee0
Direction
beste0
Value
92%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“diclosulam in mixture with S-metolachlor were the best PRE options, with 94% and 92% control of yellow and purple nutsedge”

✓ located verbatim in the source · abstract, characters 468–590 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flumioxazin was least effective against nutsedge at 70%.

Treatment
flumioxazine0
Outcome
least effectivee0
Direction
least effectivee0
Value
70%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“flumioxazin being least effective at 70%”

✓ located verbatim in the source · abstract, characters 611–651 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Diclosulam with S-metolachlor controlled common ragweed by 99%.

Treatment
Diclosulam and flumioxazin in mixture with S-metolachlore0
Interactor
common ragweedAmbrosia artemisiifoliae0weed
Outcome
common ragweed controle0
Direction
beste0
Value
99%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Ambrosia artemisiifolia
Ambrosia artemisiifolia · InteractorDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Diclosulam and flumioxazin in mixture with S-metolachlor were the best PRE options, with 99% and 93%, respectively for common ragweed control”

✓ located verbatim in the source · abstract, characters 653–794 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flumioxazin with S-metolachlor controlled common ragweed by 93%.

Treatment
flumioxazin in mixture with S-metolachlore0
Interactor
common ragweedAmbrosia artemisiifoliae0weed
Outcome
common ragweed controle0
Direction
beste0
Value
93%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Ambrosia artemisiifolia
Ambrosia artemisiifolia · InteractorDalgial · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“flumioxazin in mixture with S-metolachlor were the best PRE options, with 99% and 93%, respectively for common ragweed control”

✓ located verbatim in the source · abstract, characters 668–794 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfentrazone was least effective for common ragweed control at 65%.

Treatment
sulfentrazonee0
Outcome
least effectivee0
Direction
least effectivee0
Value
65%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“sulfentrazone was the least effective at 65%”

✓ located verbatim in the source · abstract, characters 804–848 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S-metolachlor mixtures controlled common lambsquarters similarly at 87 to 90%.

Treatment
S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazin PREe0
Interactor
common lambsquartersChenopodium albume0weed
Outcome
common lambsquarters controle0
Direction
similare0
Value
87 to 90%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Chenopodium album
Chenopodium album · InteractorOlivier Pichard · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazin PRE were similar (87 to 90%) for common lambsquarters control”

✓ located verbatim in the source · abstract, characters 850–983 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S-metolachlor mixtures gave better morningglory control than S-metolachlor alone.

Treatment
S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazine0
Interactor
morningglorye0weed
Outcome
morningglory controle0
Direction
bettere0
Comparator
S-metolachlor alonee0

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“S-Metolachlor in mixture with sulfentrazone, diclosulam, or flumioxazin provided similar levels of entireleaf, ivyleaf, pitted, and tall morningglory control (87, 86, and 87%, respectively) and better than S-metolachlor alone at 64%”

✓ located verbatim in the source · abstract, characters 985–1217 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Flumioxazin with S-metolachlor gave 96% Palmer amaranth control.

Treatment
Flumioxazin in mixture with S-metolachlore0
Interactor
Palmer amaranthe0weed
Outcome
control of Palmer amaranthe0
Direction
beste0
Value
96%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Flumioxazin in mixture with S-metolachlor was the best PRE option for control of Palmer amaranth at 96%”

✓ located verbatim in the source · abstract, characters 1219–1322 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Diclosulam with S-metolachlor gave 100% eclipta control.

Treatment
diclosulam with S-metolachlore0
Interactor
ecliptae0weed
Outcome
control of ecliptae0
Direction
beste0
Value
100%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“diclosulam with S-metolachlor was the best PRE option for control of eclipta at 100%”

✓ located verbatim in the source · abstract, characters 1332–1416 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The two POST mixtures gave similar morningglory control above 96%.

Treatment
The prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST and imazapic plus 2,4-DB POSTe0
Interactor
morningglorye0weed
Outcome
all morningglory speciese0
Direction
similare0
Value
> 96%e0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“The prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST and imazapic plus 2,4-DB POST were similar for all morningglory species (> 96%)”

✓ located verbatim in the source · abstract, characters 1418–1566 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Acifluorfen and bentazon plus 2,4-DB POST controlled Palmer amaranth by 93%.

Interactor
Palmer amaranthe0weed
Outcome
Palmer amaranth controle0
Value
93e0

Not reportedTreatmentComparatorDirection

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Palmer amaranth control (93 and 97%, respectively)”

✓ located verbatim in the source · abstract, characters 1571–1621 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Imazapic plus 2,4-DB POST controlled Palmer amaranth by 97%.

Interactor
Palmer amaranthe0weed
Outcome
Palmer amaranth controle0
Value
97%e0

Not reportedTreatmentComparatorDirection

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Palmer amaranth control (93 and 97%, respectively)”

✓ located verbatim in the source · abstract, characters 1571–1621 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Peanut treated with S-metolachlor plus diclosulam PRE yielded 3,210 kg/ha.

Treatment
S-metolachlor plus diclosulam PREe0
Outcome
yieldede0
Direction
higheste0
Value
3,210 kg/hae0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut treated with S-metolachlor plus diclosulam PRE numerically yielded the highest at 3,210 kg/ha, but were statistically equivalent to S-metolachlor plus flumioxazin PRE at 3,040 kg/ha”

✓ located verbatim in the source · abstract, characters 1623–1811 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Peanut treated with S-metolachlor plus flumioxazin PRE yielded 3,040 kg/ha.

Treatment
S-metolachlor plus flumioxazin PREe0
Outcome
yieldede0
Value
3,040 kg/hae0

Not reportedComparatorDirection

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut treated with S-metolachlor plus diclosulam PRE numerically yielded the highest at 3,210 kg/ha, but were statistically equivalent to S-metolachlor plus flumioxazin PRE at 3,040 kg/ha”

✓ located verbatim in the source · abstract, characters 1623–1811 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut treated with imazapic plus 2,4-DB POST yielded 3,400 kg/ha.

Treatment
imazapic plus 2,4-DB POSTe0
Outcome
yieldede0
Direction
moste0
Value
3,400 kg/hae0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut treated with imazapic plus 2,4-DB POST yielded the most at 3,400 kg/ha, while peanut treated with a prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST yielded less (3,070 kg/ha)”

✓ located verbatim in the source · abstract, characters 1813–2011 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut treated with a prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST yielded 3,070 kg/ha.

Treatment
a prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POSTe0
Outcome
yieldede0
Direction
lesse0
Value
3,070 kg/hae0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut treated with imazapic plus 2,4-DB POST yielded the most at 3,400 kg/ha, while peanut treated with a prepackaged mixture of acifluorfen and bentazon plus 2,4-DB POST yielded less (3,070 kg/ha)”

✓ located verbatim in the source · abstract, characters 1813–2011 · show in text ↑
t0

“Peanuts”

✓ located verbatim in the source · title, characters 34–41 · show in text ↑

imazapic · yield · Arachis hypogaea (peanut)Results differ

20 papers: 15 positive, 5 negative or no effect

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

  1. no effect
  2. no effect
  3. no effect

16 papers more in this group

See all 20 papers →

flumioxazin · yield · Arachis hypogaea (peanut)Results differ

20 papers: 10 positive, 10 negative or no effect

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

  1. no effect
  2. no effect
  3. no effect

16 papers more in this group

See all 20 papers →

Diclosulam · yield · Arachis hypogaea (peanut)Results differ

29 papers: 22 positive, 7 negative or no effect

21 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

25 papers more in this group

See all 29 papers →

Diclosulam · Ambrosia artemisiifolia · Arachis hypogaea (peanut)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. positive
  2. positive
  3. negative

2 papers more in this group

See all 6 papers →

acifluorfen · yield · Arachis hypogaea (peanut)Positive and negative results

14 papers: 7 positive, 7 negative or no effect

6 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. positive
    The system of ethalfluralin PPI plus diclosulam PRE with acifluorfen plus bentazon POST yielded greater than two ethalfluralin PPI systems.

    Weed Management in Peanut (Arachis hypogaea) with Diclosulam Preemergence · 1999 · compared with ethalfluralin PPI fb imazapic POST or ethalfluralin PPI fb acifluorfen plus bentazon POST

    Same directionCited by this paper

  3. positive
    A diclosulam system yielded greater than comparison systems.

    Response of Peanut (Arachis hypogaea) and Selected Weeds to Diclosulam · 1999 · compared with ethalfluralin PPI fb imazapic POST

    Same directionCited by this paper

10 papers more in this group

See all 14 papers →

bentazone · yield · Arachis hypogaea (peanut)Positive and negative results

15 papers: 8 positive, 7 negative or no effect

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

  1. no effect
  2. positive
    The system of ethalfluralin PPI plus diclosulam PRE with acifluorfen plus bentazon POST yielded greater than two ethalfluralin PPI systems.

    Weed Management in Peanut (Arachis hypogaea) with Diclosulam Preemergence · 1999 · compared with ethalfluralin PPI fb imazapic POST or ethalfluralin PPI fb acifluorfen plus bentazon POST

    Same directionCited by this paper

  3. positive
    A diclosulam system yielded greater than comparison systems.

    Response of Peanut (Arachis hypogaea) and Selected Weeds to Diclosulam · 1999 · compared with ethalfluralin PPI fb imazapic POST

    Same directionCited by this paper

11 papers more in this group

See all 15 papers →

flumioxazin · control · Arachis hypogaea (peanut)Positive and negative results

18 papers: 15 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. negative

14 papers more in this group

See all 18 papers →

Diclosulam · control · Arachis hypogaea (peanut)Positive and negative results

23 papers: 20 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

19 papers more in this group

See all 23 papers →

8 of 13 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.