Paper · 1979 · Nematropica

Research Papers: Effects on Soybeans and Nematode Populations of Three Soil Fumigants Applied at Several Rates at Time of Planting

N. A. Minton; M. B. Parker

6
claims
14
verbatim quotes
0
citations
3
research areas
✓
Open access

Abstract

Various rates of ethylene dibromide, DD, and 1,3-D injected at planting to a depth of 20 cm with two chisels per row set 25 cm apart increased soybean yields and reduced population levels of Meloidogyne incognita and Helicotylenchus sp. in a Fuquay loamy sand. Liters per ha of active ingredient that increased yields significantly were: ethylene dibromide, 4.67, 9.34, 18.68, 37.36, and 56.04; DD, 18.68, 37.36, and 74.72; 1,3-D 18.68 and 37.36. The average yield increase for these rates was 31%. Yield differences among pesticide rates were not significant. Yields were not increased significantly with DD at 7.01 1/ha, 1,3-D at 9.34 1/ha and phenamiphos at 2.8 kg a.i./ha. DD at 74.72 l/ha was phytotoxic.

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Claims 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Ethylene dibromide, DD and 1,3-D injected at planting increased soybean yields at several rates.

Taxon
SoybeansGlycine maxt0
Treatment
ethylene dibromide, DD, and 1,3-De1
Outcome
soybean yieldse1
Direction
increasede1

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e1

“Various rates of ethylene dibromide, DD, and 1,3-D injected at planting to a depth of 20 cm with two chisels per row set 25 cm apart increased soybean yields and reduced population levels of Meloidogyne incognita and Helicotylenchus sp.”

✓ located verbatim in the source · abstract, characters 0–236 · show in text ↑
e2

“Liters per ha of active ingredient that increased yields significantly were”

✓ located verbatim in the source · abstract, characters 261–336 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil fumigants at planting reduced population levels of Meloidogyne incognita and Helicotylenchus sp. in soybean.

Taxon
SoybeansGlycine maxt0
Treatment
ethylene dibromide, DD, and 1,3-De1
Interactor
Meloidogyne incognitaMeloidogyne incognitae1pest
Second interactor
Helicotylenchus spHelicotylenchuse1pest
Outcome
population levelse1
Direction
reducede1

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗
Meloidogyne incognita
Meloidogyne incognita · InteractorPhoto by William Wergin and Richard Sayre. Colorized by Stephen Ausmus. U.S. Department of Agriculture · CC BY 2.0 · Wikimedia Commons ↗
Helicotylenchus
Helicotylenchus · Second interactor · picture of the genus (one of its species)KarmTogo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e1

“Various rates of ethylene dibromide, DD, and 1,3-D injected at planting to a depth of 20 cm with two chisels per row set 25 cm apart increased soybean yields and reduced population levels of Meloidogyne incognita and Helicotylenchus sp.”

✓ located verbatim in the source · abstract, characters 0–236 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The average yield increase for the fumigant rates was 31%.

Taxon
SoybeansGlycine maxt0
Treatment
ethylene dibromide, DD, and 1,3-De1
Outcome
yielde3
Direction
increasee3
Value
31%e3

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e1

“Various rates of ethylene dibromide, DD, and 1,3-D injected at planting to a depth of 20 cm with two chisels per row set 25 cm apart increased soybean yields and reduced population levels of Meloidogyne incognita and Helicotylenchus sp.”

✓ located verbatim in the source · abstract, characters 0–236 · show in text ↑
e3

“The average yield increase for these rates was 31%”

✓ located verbatim in the source · abstract, characters 447–497 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Yields were not increased significantly by DD at 7.01 1/ha, 1,3-D at 9.34 1/ha or phenamiphos at 2.8 kg a.i./ha.

Taxon
SoybeansGlycine maxt0
Treatment
DD at 7.01 1/ha,1,3-D at 9.34 1/ha and phenamiphos at 2.8 kg a.i./hae4
Outcome
Yieldse4
Direction
not increasede4

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e4

“Yields were not increased significantly with DD at 7.01 1/ha,1,3-D at 9.34 1/ha and phenamiphos at 2.8 kg a.i./ha”

✓ located after whitespace/quote normalisation · abstract, characters 561–675 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

DD at 74.72 l/ha was phytotoxic to soybean.

Taxon
SoybeansGlycine maxt0
Treatment
DD at 74.72 l/hae5
Outcome
phytotoxice5

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e5

“DD at 74.72 l/ha was phytotoxic”

✓ located verbatim in the source · abstract, characters 677–708 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Yield differences among pesticide rates were not significant.

Taxon
SoybeansGlycine maxt0
Treatment
pesticide ratese6
Outcome
Yield differencese6
Direction
not significante6

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

t0

“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”

✓ located verbatim in the source · title, characters 17–85 · show in text ↑
e6

“Yield differences among pesticide rates were not significant”

✓ located verbatim in the source · abstract, characters 499–559 · show in text ↑

1,2-dibromoethane · Meloidogyne incognita · Glycine max (soybean)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fenamiphos · yield · Glycine max (soybean)Results agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. no effect
See all 2 papers →

1,2-dibromoethane · yield · Glycine max (soybean)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

insecticide · yield · Glycine max (soybean)Results differ

68 papers: 39 positive, 29 negative or no effect

28 papers in the same direction as this paper · 39 in the opposite direction

  1. positive
  2. positive
  3. positive

64 papers more in this group

See all 68 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.