Abstract
Giant foxtail, woolly cupgrass, and wild-proso millet infest millions of hectares of land devoted to corn production in the midwestern U.S. Control of these species and effects on corn grain yield were evaluated at various timings using POST applications of nicosulfuron vs. applications of various PRE herbicides at 17 locations across the midwestern U.S. in 1992 and 1993. Nicosulfuron applied to 5 to 10 cm giant foxtail and woolly cupgrass provided greater control than that observed with selected PRE herbicides. Giant foxtail control with nicosulfuron averaged 88%, and control of woolly cupgrass averaged 77% across all sites. Nicosulfuron, applied to 5 to 10 cm wild-proso millet, provided a level of control similar to that of selected PRE herbicides. Corn grain yield was greater when giant foxtail was controlled POST with nicosulfuron vs. PRE control with selected soil-applied herbicides. Corn grain yields were similar when nicosulfuron was applied POST to 5 to 10 cm woolly cupgrass or wild-proso millet vs. PRE control of these grass weeds. Across a broad range of geographical locations, nicosulfuron, applied POST to 5 to 10 cm tall grass, provided greater or similar levels of weed control vs. the selected PRE herbicides, with no deleterious effect on grain yield.
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Claims 8
Claim · model-written summary
Nicosulfuron applied to 5 to 10 cm giant foxtail and woolly cupgrass gave greater control than PRE herbicides.
- Treatment
- Nicosulfurone1
- Interactor
- giant foxtaile1weed
- Second interactor
- woolly cupgrasse1weed
- Outcome
- controle1
- Direction
- greatere1
- Comparator
- selected PRE herbicidese1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e1“Nicosulfuron applied to 5 to 10 cm giant foxtail and woolly cupgrass provided greater control than that observed with selected PRE herbicides”
Claim · model-written summary
Nicosulfuron gave 88% average control of giant foxtail.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e2“Giant foxtail control with nicosulfuron averaged 88%”
Claim · model-written summary
Nicosulfuron gave 77% average control of woolly cupgrass across all sites.
- Interactor
- woolly cupgrasse3weed
- Outcome
- control of woolly cupgrasse3
- Value
- 77%e3
- Setting
- across all sitese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e3“control of woolly cupgrass averaged 77% across all sites”
Claim · model-written summary
Nicosulfuron applied to 5 to 10 cm wild-proso millet gave control similar to PRE herbicides.
- Treatment
- Nicosulfurone4
- Interactor
- wild-proso millete4weed
- Outcome
- level of controle4
- Direction
- similare4
- Comparator
- selected PRE herbicidese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e4“Nicosulfuron, applied to 5 to 10 cm wild-proso millet, provided a level of control similar to that of selected PRE herbicides”
Claim · model-written summary
Corn grain yield was greater when giant foxtail was controlled POST with nicosulfuron than with PRE soil-applied herbicides.
- Treatment
- POST with nicosulfurone5
- Interactor
- giant foxtaile5weed
- Outcome
- Corn grain yielde5
- Direction
- greatere5
- Comparator
- PRE control with selected soil-applied herbicidese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e5“Corn grain yield was greater when giant foxtail was controlled POST with nicosulfuron vs. PRE control with selected soil-applied herbicides”
Claim · model-written summary
Corn grain yield was similar when nicosulfuron was applied POST to woolly cupgrass or wild-proso millet and when PRE herbicides were used.
- Treatment
- nicosulfuron was applied POSTe6
- Interactor
- woolly cupgrasse6weed
- Second interactor
- wild-proso millete6weed
- Outcome
- Corn grain yieldse6
- Direction
- similare6
- Comparator
- PRE control of these grass weedse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e6“Corn grain yields were similar when nicosulfuron was applied POST to 5 to 10 cm woolly cupgrass or wild-proso millet vs. PRE control of these grass weeds”
Claim · model-written summary
Across locations, POST nicosulfuron gave greater or similar weed control than selected PRE herbicides.
- Treatment
- nicosulfurone7
- Outcome
- weed controle7
- Direction
- greater or similare7
- Comparator
- selected PRE herbicidese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e7“nicosulfuron, applied POST to 5 to 10 cm tall grass, provided greater or similar levels of weed control vs. the selected PRE herbicides”
Claim · model-written summary
POST nicosulfuron had no deleterious effect on corn grain yield.
- Treatment
- nicosulfurone7
- Outcome
- grain yielde6
- Direction
- no deleterious effecte6
- Comparator
- selected PRE herbicidese7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“annual grass control and corn (Zea mays) grain yield”
e7“nicosulfuron, applied POST to 5 to 10 cm tall grass, provided greater or similar levels of weed control vs. the selected PRE herbicides”
e6“with no deleterious effect on grain yield”
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See all 38 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.