Abstract
Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972 using consecutive annual applications of alachlor (2-chloro-2′,6′-diethyl- N -(methoxymethyl)acetanilide) at 3.4 kg/ha, butylate ( S -ethyi diisobutylthiocarbamate) at 4.5, 9.0, and 13.4 kg/ha, and EPTC ( S -ethyl dipropylthiocarbamate) at 3.4, 6.7, and 13.4 kg/ha. In 1970, control was less than 60% for all herbicides, and there was no significant rate response. In 1971 butylate and EPTC at all rates provided 79 to 93% control. Alachlor gave 49% control. In 1972 control was similar to 1971. Control with one cultivation was additive to these herbicidal effects. Seed treatment with 0.5% 1,8-naphthalic anhydride adequately protected the corn from herbicide injury. Corn yields were closely correlated with johnsongrass control.
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Claims 8
Claim · model-written summary
In 1970, johnsongrass control was below 60% for all herbicides.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- all herbicidese1
- Interactor
- Johnsongrass
.jpg?width=60)
Sorghum halepensee0weed - Outcome
- controle1
- Direction
- lesse1
- Value
- 60%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e1“In 1970, control was less than 60% for all herbicides, and there was no significant rate response”
Claim · model-written summary
In 1970, johnsongrass control showed no significant response to herbicide rate.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- all herbicidese1
- Interactor
- JohnsongrassSorghum halepensee0weed
- Outcome
- rate responsee1
- Direction
- no_changeinferrede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e1“In 1970, control was less than 60% for all herbicides, and there was no significant rate response”
Claim · model-written summary
Butylate and EPTC at all rates gave 79 to 93% johnsongrass control in 1971.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- butylate and EPTCe2
- Interactor
- JohnsongrassSorghum halepensee0weed
- Outcome
- controle2
- Direction
- increaseinferrede2
- Value
- 79 to 93%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e2“In 1971 butylate and EPTC at all rates provided 79 to 93% control”
Claim · model-written summary
Alachlor gave 49% johnsongrass control in 1971.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Alachlore3
- Interactor
- JohnsongrassSorghum halepensee0weed
- Outcome
- controle3
- Direction
- increaseinferrede3
- Value
- 49%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e3“Alachlor gave 49% control”
Claim · model-written summary
Johnsongrass control in 1972 was similar to 1971.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- JohnsongrassSorghum halepensee0weed
- Outcome
- controle4
- Direction
- similare4
- Comparator
- 1971e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e4“In 1972 control was similar to 1971”
Claim · model-written summary
One cultivation was additive to the herbicidal effects on johnsongrass.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- one cultivatione5
- Interactor
- JohnsongrassSorghum halepensee0weed
- Outcome
- herbicidal effectse5
- Direction
- additivee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e5“Control with one cultivation was additive to these herbicidal effects”
Claim · model-written summary
Seed treatment with 0.5% 1,8-naphthalic anhydride protected corn from herbicide injury.
- Taxon
- cornZea mays subsp. mayse6
- Treatment
- Seed treatment with 0.5% 1,8-naphthalic anhydridee6
- Outcome
- herbicide injurye6
- Direction
- protectede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Seed treatment with 0.5% 1,8-naphthalic anhydride adequately protected the corn from herbicide injury”
Claim · model-written summary
Corn yields were closely correlated with johnsongrass control.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- johnsongrassSorghum halepensee7weed
- Outcome
- Corn yieldse7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Johnsongrass [ Sorghum halepense (L.) Pers.] control in corn ( Zea mays L.) was studied from 1970 to 1972”
e7“Corn yields were closely correlated with johnsongrass control”
The same questions in other papers
EPTC · Sorghum halepense · Zea mays (maize)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
seed treatment · crop injury · Zea mays (maize)Positive and negative results
7 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
5 papers more in this group
See all 9 papers →herbicide · Sorghum halepense · Zea mays (maize)Positive and negative results
3 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
13 papers more in this group
See all 17 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.