Abstract
The effects of weed control measures in established alfalfa ( Medicago sativa L.) on forage yield and quality were investigated at three sites with varying alfalfa densities and weed populations. Herbicide treatments were 0.56 and 1.12 kg/ha metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4 H )-one] applied in fall or spring, respectively, 1.68 kg/ha pronamide [3,5-dichloro ( N- 1,1-dimethyl-2-propynyl)benzamide] applied in fall, and combinations of these treatments. First-harvest forage yields (weeds plus alfalfa) were either reduced or unchanged by herbicide treatments. Total forage yield was not altered by the herbicide treatments, but first-harvest and total alfalfa yield as well as first-harvest forage protein content were increased by several treatments, depending on stand density and weed pressure. Little effect was observed on in vitro digestible dry matter or acid detergent fiber content.
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Claims 6
Claim · model-written summary
Herbicides reduced or did not change first-harvest combined weed and alfalfa forage yield.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- herbicide treatmentse0
- Interactor
- weedse0weed
- Outcome
- First-harvest forage yields (weeds plus alfalfa)e0
- Direction
- reduced or unchangede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“First-harvest forage yields (weeds plus alfalfa) were either reduced or unchanged by herbicide treatments”
Claim · model-written summary
Herbicides did not alter total forage yield.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- herbicide treatmentse0
- Outcome
- Total forage yielde0
- Direction
- not alterede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total forage yield was not altered by the herbicide treatments”
t0“Alfalfa (Medicago sativa)”
Claim · model-written summary
Several herbicide treatments increased first-harvest alfalfa yield depending on stand density and weed pressure.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- several treatmentse0
- Interactor
- weede0weed
- Outcome
- alfalfa yielde0
- Direction
- increasede0
- Qualifier
- first-harveste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“first-harvest and total alfalfa yield as well as first-harvest forage protein content were increased by several treatments, depending on stand density and weed pressure”
Claim · model-written summary
Several herbicide treatments increased total alfalfa yield depending on stand density and weed pressure.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- several treatmentse0
- Outcome
- total alfalfa yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“first-harvest and total alfalfa yield as well as first-harvest forage protein content were increased by several treatments, depending on stand density and weed pressure”
Claim · model-written summary
Several herbicide treatments increased first-harvest forage protein content.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- several treatmentse0
- Outcome
- first-harvest forage protein contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“first-harvest and total alfalfa yield as well as first-harvest forage protein content were increased by several treatments, depending on stand density and weed pressure”
Claim · model-written summary
Herbicides had little effect on in vitro digestible dry matter and acid detergent fiber content.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- herbicide treatmentse1
- Outcome
- in vitro digestible dry matter or acid detergent fiber contente0
- Direction
- Little effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Little effect was observed on in vitro digestible dry matter or acid detergent fiber content”
e1“by herbicide treatments. Total forage yield”
t0“Alfalfa (Medicago sativa)”
The same questions in other papers
herbicide · yield · Medicago sativa (alfalfa)Results differ
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- no effect
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See all 9 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.