Abstract
Experiments were conducted from 1979 to 1982 to determine whether selected herbicide treatments applied before or after harvest would provide adequate weed control without the use of tillage between crops in continuous winter wheat ( Triticum aestivum L.) production systems. of the herbicide treatments evaluated, only oryzalin (3,5-dinitro- N 4 , N 4 -dipropylsulfanilamide) at 2.2 kg ai/ha applied prior to wheat maturity adequately controlled summer annual weeds each year. Populations of yellow nutsedge ( Cyperus esculentus L. # CYPES) and/or clammy groundcherry ( Physalis heterophylla Nees) increased from continued preharvest use of oryzalin in no-till treatments and were greater than those resulting from conventional tillage or various postharvest no-till treatments containing glyphosate [ N -(phosphonomethyl)glycine]. After 4 yr, populations of winter annual Cruciferae spp. at one location were lower in treatments that had poorer control of summer annual weeds or volunteer wheat. At a second location, winter annual broadleaf species were more numerous in conventionally tilled than in no-till treatments. Wheat yields obtained with no-till treatments were lower than yields obtained with conventional tillage in seasons favorable for high yields.
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Claims 6
Claim · model-written summary
Preharvest oryzalin at 2.2 kg ai/ha adequately controlled summer annual weeds each year.
- Taxon
- winter wheat
Triticum aestivumt0 - Treatment
- oryzalin (3,5-dinitro- N 4 , N 4 -dipropylsulfanilamide) at 2.2 kg ai/hae0
- Interactor
- summer annual weedse0weed
- Outcome
- summer annual weedse0
- Direction
- adequately controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“only oryzalin (3,5-dinitro- N 4 , N 4 -dipropylsulfanilamide) at 2.2 kg ai/ha applied prior to wheat maturity adequately controlled summer annual weeds each year”
t0“winter wheat”
Claim · model-written summary
Continued preharvest oryzalin increased yellow nutsedge populations relative to tillage or glyphosate no-till treatments.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- continued preharvest use of oryzalin in no-till treatmentse0
- Interactor
- yellow nutsedgee0weed
- Outcome
- Populations of yellow nutsedgee0
- Direction
- increasede0
- Comparator
- conventional tillage or various postharvest no-till treatments containing glyphosatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Populations of yellow nutsedge ( Cyperus esculentus L. # CYPES) and/or clammy groundcherry ( Physalis heterophylla Nees) increased from continued preharvest use of oryzalin in no-till treatments and were greater than those resulting from conventional tillage or various postharvest no-till treatments containing glyphosate”
t0“winter wheat”
Claim · model-written summary
Continued preharvest oryzalin increased clammy groundcherry populations relative to tillage or glyphosate no-till treatments.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- continued preharvest use of oryzalin in no-till treatmentse0
- Interactor
- clammy groundcherrye0weed
- Outcome
- clammy groundcherrye0
- Direction
- increasede0
- Comparator
- conventional tillage or various postharvest no-till treatments containing glyphosatee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Populations of yellow nutsedge ( Cyperus esculentus L. # CYPES) and/or clammy groundcherry ( Physalis heterophylla Nees) increased from continued preharvest use of oryzalin in no-till treatments and were greater than those resulting from conventional tillage or various postharvest no-till treatments containing glyphosate”
t0“winter wheat”
Claim · model-written summary
At one location after four years, poorer summer weed or volunteer wheat control coincided with fewer winter annual Cruciferae.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- treatments that had poorer control of summer annual weeds or volunteer wheate0
- Interactor
- winter annual Cruciferae spp.e0weed
- Outcome
- populations of winter annual Cruciferae spp.e0
- Direction
- lowere0
- Qualifier
- After 4 yre0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 4 yr, populations of winter annual Cruciferae spp. at one location were lower in treatments that had poorer control of summer annual weeds or volunteer wheat.”
t0“winter wheat”
Claim · model-written summary
At a second location, conventional tillage had more winter annual broadleaf weeds than no-till.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- conventionally tillede0
- Interactor
- winter annual broadleaf speciese0weed
- Outcome
- winter annual broadleaf speciese0
- Direction
- more numerouse0
- Comparator
- no-till treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At a second location, winter annual broadleaf species were more numerous in conventionally tilled than in no-till treatments.”
t0“winter wheat”
Claim · model-written summary
No-till wheat yields were lower than conventional tillage yields in high-yield seasons.
- Taxon
- WheatTriticum aestivume0
- Treatment
- no-till treatmentse0
- Outcome
- Wheat yieldse0
- Direction
- lowere0
- Qualifier
- seasons favorable for high yieldse0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat yields obtained with no-till treatments were lower than yields obtained with conventional tillage in seasons favorable for high yields.”
The same questions in other papers
oryzalin · weed · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
tillage · pest · Triticum aestivum (wheat)Positive and negative results
13 papers in the same direction as this paper · 28 in the opposite direction
- positive
- positive
- positive
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See all 42 papers →tillage · yield · Triticum aestivum (wheat)Positive and negative results
297 papers in the same direction as this paper · 1,116 in the opposite direction
- positive
- negative
- positive
1,410 papers more in this group
See all 1,414 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.