Abstract
The rate, application method and (or) combination of herbicides, with or without cultivation for soybean production, were studied during several years at Ridgetown and Woodslee, Ontario. One cultivation combined with a herbicide application at reduced rates of metribuzin (e.g., 0.42 kg a.i. ha −1 ) not only provided effective weed control but also maintained reliable economic return over the years. When used alone, however, neither of them provided satisfactory results. The success of a given weed management system appeared to depend on temporal and spatial environmental variations. In years of adequate rainfall, neither cultivation nor herbicide treatment significantly enhanced the soybean yield or economic return at Woodslee, despite greater weed control than with plots receiving no herbicide or cultivation. Thus, weed control is probably more critical in years of sub-favourable growth conditions than in years of favourable growth conditions. Key words: Cultivation, efficacy, economy, herbicide, reliability, soybean, Glycine max
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Claims 9
Claim · model-written summary
One cultivation with reduced metribuzin gave effective weed control.
- Taxon
- soybean
Glycine maxt0 - Treatment
- One cultivation combined with a herbicide application at reduced rates of metribuzine0
- Interactor
- weede0weed
- Outcome
- weed controle0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“One cultivation combined with a herbicide application at reduced rates of metribuzin (e.g., 0.42 kg a.i. ha −1 ) not only provided effective weed control”
Claim · model-written summary
The combined practice maintained reliable economic return over years.
- Taxon
- soybeanGlycine maxt0
- Outcome
- economic returne0
- Direction
- maintainede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“maintained reliable economic return over the years”
Claim · model-written summary
Cultivation alone did not give satisfactory results.
- Taxon
- soybeanGlycine maxt0
- Outcome
- satisfactory resultse0
- Qualifier
- alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“When used alone, however, neither of them provided satisfactory results”
Claim · model-written summary
Herbicide alone did not give satisfactory results.
- Taxon
- soybeanGlycine maxt0
- Outcome
- satisfactory resultse0
- Qualifier
- alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“When used alone, however, neither of them provided satisfactory results”
Claim · model-written summary
In adequately rainy years at Woodslee, cultivation did not significantly enhance soybean yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- cultivatione0
- Outcome
- soybean yielde0
- Direction
- enhancede0
- Setting
- Woodsleee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In years of adequate rainfall, neither cultivation nor herbicide treatment significantly enhanced the soybean yield or economic return at Woodslee”
Claim · model-written summary
In adequately rainy years at Woodslee, herbicide did not significantly enhance soybean yield.
- Taxon
- soybeanGlycine maxe0
- Treatment
- herbicide treatmente0
- Outcome
- soybean yielde0
- Direction
- enhancede0
- Setting
- Woodsleee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In years of adequate rainfall, neither cultivation nor herbicide treatment significantly enhanced the soybean yield or economic return at Woodslee”
Claim · model-written summary
In adequately rainy years at Woodslee, cultivation did not significantly enhance economic return.
- Taxon
- soybeanGlycine maxt0
- Treatment
- cultivatione0
- Outcome
- economic returne0
- Direction
- enhancede0
- Setting
- Woodsleee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“In years of adequate rainfall, neither cultivation nor herbicide treatment significantly enhanced the soybean yield or economic return at Woodslee”
Claim · model-written summary
In adequately rainy years at Woodslee, herbicide did not significantly enhance economic return.
- Taxon
- soybeanGlycine maxt0
- Treatment
- herbicide treatmente0
- Outcome
- economic returne0
- Direction
- enhancede0
- Setting
- Woodsleee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“In years of adequate rainfall, neither cultivation nor herbicide treatment significantly enhanced the soybean yield or economic return at Woodslee”
Claim · model-written summary
Weed control exceeded that in untreated plots in adequately rainy years.
- Taxon
- soybeanGlycine maxt0
- Interactor
- weede0weed
- Outcome
- weed controle0
- Direction
- greatere0
- Comparator
- plots receiving no herbicide or cultivatione0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“soybean (Glycine max)”
e0“despite greater weed control than with plots receiving no herbicide or cultivation”
The same questions in other papers
metribuzin · weed · Glycine max (soybean)Positive and negative results
23 papers in the same direction as this paper · 1 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
23 papers more in this group
See all 27 papers →herbicide · weed · Glycine max (soybean)Positive and negative results
257 papers in the same direction as this paper · 26 in the opposite direction · 13 reporting no difference from an alternative
- negative
- positive
- positive
293 papers more in this group
See all 297 papers →herbicide · yield · Glycine max (soybean)Positive and negative results
137 papers in the same direction as this paper · 322 in the opposite direction
- no effect
- negative
- positive
456 papers more in this group
See all 460 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.