Abstract
The influence of soil moisture on wild oat control from soil-incorporated methyl ester of diclofop {2-[4-(2,4-dichlorophenoxy)-phenoxy] propanoic} was determined in the greenhouse. Wild oat control with soil-incorporated diclofop at 1.5 or 3 ppmw increased linearly when soil moisture in a Tiffany sandy loam increased from 18.5 to 23.5% (75% to 125% of field capacity). The efficacy of soil-incorporated diclofop was not reduced when soil moisture was allowed to decrease from 21 (field capacity) to 18.5, 16, 13.5, or 11% (wilting point) before rewatering to 21%. The soil moisture level at the time of herbicide application determined the degree of wild oat control with soil-incorporated diclofop. Wild oat control with diclofop increased when a Tiffany sandy loam with 16% moisture (50% of field capacity) at the time of herbicide application, was watered to field capacity after 8 or 12 days delay, and control did not change with watering to field capacity at the time of herbicide application or when delayed 4 or 16 days. The movement of 14 C-diclofop in soil columns was greater within coarse than fine textured soils and increased with water volumes applied, regardless of soil type. Further, the leachability of 14 C-diclofop was two and a half times greater than that of 14 C-trifluralin (α,α,α-trifluoro-2,6-dinitro- N,N -dipropyl- p -toluidine).
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Claims 5
Claim · model-written summary
Wild oat control increased linearly as soil moisture rose from 18.5 to 23.5%.
Verbatim
e0“Wild oat control with soil-incorporated diclofop at 1.5 or 3 ppmw increased linearly when soil moisture in a Tiffany sandy loam increased from 18.5 to 23.5% (75% to 125% of field capacity).”
Claim · model-written summary
Allowing soil moisture to fall before rewatering did not reduce diclofop efficacy.
- Taxon
- wild oate1
- Treatment
- soil moisture was allowed to decrease from 21 (field capacity) to 18.5, 16, 13.5, or 11% (wilting point) before rewatering to 21%e0
- Outcome
- efficacy of soil-incorporated diclofope0
- Direction
- not reducede0
Not reportedComparator
Verbatim
e0“The efficacy of soil-incorporated diclofop was not reduced when soil moisture was allowed to decrease from 21 (field capacity) to 18.5, 16, 13.5, or 11% (wilting point) before rewatering to 21%.”
t0“Influence of Moisture on Soil-Incorporated Diclofop”
e1“wild oat control from soil-incorporated methyl ester of diclofop”
Claim · model-written summary
Soil moisture at herbicide application determined wild oat control.
- Taxon
- wild oate0
- Treatment
- soil moisture level at the time of herbicide applicatione0
- Outcome
- degree of wild oat controle0
Not reportedDirection
Verbatim
e0“The soil moisture level at the time of herbicide application determined the degree of wild oat control with soil-incorporated diclofop.”
Claim · model-written summary
With initially 16% moist soil, watering after eight or twelve days increased wild oat control.
- Taxon
- Wild oate0
- Treatment
- watered to field capacity after 8 or 12 days delaye0
- Outcome
- Wild oat controle0
- Direction
- increasede0
- Setting
- Tiffany sandy loame0
Not reportedComparator
Verbatim
e0“Wild oat control with diclofop increased when a Tiffany sandy loam with 16% moisture (50% of field capacity) at the time of herbicide application, was watered to field capacity after 8 or 12 days delay”
Claim · model-written summary
Watering at application or after four or sixteen days did not change wild oat control.
- Taxon
- wild oate1
- Treatment
- watering to field capacity at the time of herbicide application or when delayed 4 or 16 dayse0
- Outcome
- controle0
- Direction
- did not changee0
Not reportedComparator
Verbatim
e0“control did not change with watering to field capacity at the time of herbicide application or when delayed 4 or 16 days.”
t0“Influence of Moisture on Soil-Incorporated Diclofop”
e1“wild oat control from soil-incorporated methyl ester of diclofop”
The same questions in other papers
diclofop · control · Avena sativa (oats)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
herbicide · control · Avena sativa (oats)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
soil water · control · Avena sativa (oats)Results agree
1 paper in the same direction as this paper
- negative
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.