Abstract
Four cropping systems were evaluated from 1975 to 1977 for the control of yellow nutsedge ( Cyperus esculentus L.). Crops grown in 1975 and 1976 included alfalfa ( Medicago sativa L. ‘Elcamino WL-600′), barley (Hordeum vulgare L. ‘CM-67′), corn ( Zea mays L. ‘Dekalb T214′), and cotton ( Gossypium hirsutum L. ‘Acala SJ-2′). Herbicides used included butylate ( S -ethyl diisobutylthiocarbamate) in corn, EPTC ( S -ethyl dipropylthiocarbamate) in alfalfa, glyphosate [ N -(phosphonomethyl)glycine] in fallow plots, and MSMA (monosodium methanearsonate) in cotton. Cotton, which was grown continuously as one of the four cropping systems, was the only crop grown in 1977. Based on weed counts, crop yields, and the consistent decline in the number of tubers, all cropping systems provided substantial control of yellow nutsedge each year. Two years of either alfalfa treated with EPTC or double cropping barley with corn treated with butylate preceeding cotton reduced the number of viable yellow nutsedge tubers by 96%. Two years of chemically fallowing plots with glyphosate following barley and preceeding cotton was 98% effective in reducing viable tubers. Treating continuous cotton with MSMA, although somewhat inferior to the above systems, reduced the number of viable nutsedge tubers by 91% in 3 yr.
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Claims 3
Claim · model-written summary
Two years of EPTC-treated alfalfa before cotton reduced viable nutsedge tubers by 96%.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- alfalfa treated with EPTCe0
- Interactor
- yellow nutsedgee0weed
- Outcome
- number of viable yellow nutsedge tuberse0
- Direction
- reducede0
- Value
- 96%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two years of either alfalfa treated with EPTC or double cropping barley with corn treated with butylate preceeding cotton reduced the number of viable yellow nutsedge tubers by 96%.”
Claim · model-written summary
Two years of barley and butylate-treated corn before cotton reduced viable nutsedge tubers by 96%.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- double cropping barley with corn treated with butylatee0
- Interactor
- yellow nutsedgee0weed
- Outcome
- number of viable yellow nutsedge tuberse0
- Direction
- reducede0
- Value
- 96%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two years of either alfalfa treated with EPTC or double cropping barley with corn treated with butylate preceeding cotton reduced the number of viable yellow nutsedge tubers by 96%.”
Claim · model-written summary
MSMA-treated continuous cotton reduced viable nutsedge tubers by 91% in three years.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Treating continuous cotton with MSMAe0
- Interactor
- yellow nutsedget0weed
- Outcome
- number of viable nutsedge tuberse0
- Direction
- reducede0
- Value
- 91%e0
- Comparator
- above systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treating continuous cotton with MSMA, although somewhat inferior to the above systems, reduced the number of viable nutsedge tubers by 91% in 3 yr.”
t0“Yellow Nutsedge (Cyperus esculentus)”