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
Claim · model-written summary
Ethylene dibromide, DD and 1,3-D injected at planting increased soybean yields at several rates.
- Taxon
- Soybeans
Glycine 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.

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
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.”
e2“Liters per ha of active ingredient that increased yields significantly were”
Claim · model-written summary
Soil fumigants at planting reduced population levels of Meloidogyne incognita and Helicotylenchus sp. in soybean.
- Taxon
- Soybeans
Glycine maxt0 - Treatment
- ethylene dibromide, DD, and 1,3-De1
- Interactor
- Meloidogyne incognita
Meloidogyne incognitae1pest - Second interactor
- Helicotylenchus sp
Helicotylenchuse1pest - Outcome
- population levelse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

_penetrates_a_tomato_root_-_USDA-ARS.jpg?width=500)

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
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.”
Claim · model-written summary
The average yield increase for the fumigant rates was 31%.
- Taxon
- Soybeans
Glycine 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.

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
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.”
e3“The average yield increase for these rates was 31%”
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
- Soybeans
Glycine 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.

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
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”
Claim · model-written summary
DD at 74.72 l/ha was phytotoxic to soybean.
- Taxon
- Soybeans
Glycine 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.

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
e5“DD at 74.72 l/ha was phytotoxic”
Claim · model-written summary
Yield differences among pesticide rates were not significant.
- Taxon
- Soybeans
Glycine 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.

Verbatim
t0“Effects on Soybeans and Nematode Populations of Three Soil Fumigants”
e6“Yield differences among pesticide rates were not significant”
The same questions in other papers
1,2-dibromoethane · Meloidogyne incognita · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- positive
fenamiphos · yield · Glycine max (soybean)Results agree
1 paper in the same direction as this paper
- no effect
1,2-dibromoethane · yield · Glycine max (soybean)Results agree
4 papers in the same direction as this paper
- positive
- positive
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See all 5 papers →insecticide · yield · Glycine max (soybean)Results differ
28 papers in the same direction as this paper · 39 in the opposite direction
- positive
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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.