Abstract
Four experiments were conducted to investigate methods for establishing legumes without cultivation in a pasture of low productivity because of nitrogen and phosphorus deficiencies on the Pathlow Community Pasture in northeastern Saskatchewan. Glyphosate applied at 2.2 kg ha −1 in strips 36 cm wide in early fall 1983 and 1984 was used as a standard vegetation control method. Other treatments were applied the same way. Alfalfa (Medicago media Pers. ’Beaver’) and cicer milkvetch (Astragalus cicer L. ’Oxley’) were seeded in the sprayed strips in late fall 1983 and spring 1985 using a triple-disk range drill. The degree of establishment was assessed initially by seedling counts and later by cover estimates each year until 1988. Legume establishment was best in strips where the vegetation was killed. The addition of 5% wt/vol ammonium sulphate to glyphosate did not improve establishment of the legumes significantly. Fluazifop-butyl, quizalofop-ethyl, and haloxyfop-methyl had little effect on the resident vegetation and legume establishment was poor. Sethoxydim tested at 0.8 kg ha −1 appeared to provide less suppression of vegetation than was achieved with glyphosate at 1.1 kg ha −1 but legume establishment was similar. There was no benefit to drilling phosphorus at rates up to 60 kg ha −1 with the seed.Key words: Pasture, renovation, no-tillage seeding, alfalfa, cicer milkvetch, sward suppression
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Claims 8
Claim · model-written summary
Legume establishment was best in strips with killed vegetation.
- Taxon
- Alfalfa
Medicago sativae1 - Treatment
- vegetation was killede0
- Interactor
- vegetatione0weed
- Outcome
- Legume establishmente0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Legume establishment was best in strips where the vegetation was killed.”
e1“Alfalfa (Medicago media Pers. ’Beaver’)”
Claim · model-written summary
Adding ammonium sulphate to glyphosate did not significantly improve legume establishment.
Verbatim
e0“The addition of 5% wt/vol ammonium sulphate to glyphosate did not improve establishment of the legumes significantly.”
e1“cicer milkvetch (Astragalus cicer L. ’Oxley’)”
Claim · model-written summary
Fluazifop-butyl had little effect on resident vegetation and legume establishment was poor.
- Taxon
- AlfalfaMedicago sativae1
- Treatment
- Fluazifop-butyle0
- Interactor
- resident vegetatione0weed
- Outcome
- legume establishmente0
- Direction
- poore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluazifop-butyl, quizalofop-ethyl, and haloxyfop-methyl had little effect on the resident vegetation and legume establishment was poor.”
e1“Alfalfa (Medicago media Pers. ’Beaver’)”
Claim · model-written summary
Quizalofop-ethyl had little effect on resident vegetation and legume establishment was poor.
- Taxon
- cicer milkvetche1
- Treatment
- quizalofop-ethyle0
- Interactor
- resident vegetatione0weed
- Outcome
- legume establishmente0
- Direction
- poore0
Not reportedComparator
Verbatim
e0“Fluazifop-butyl, quizalofop-ethyl, and haloxyfop-methyl had little effect on the resident vegetation and legume establishment was poor.”
e1“cicer milkvetch (Astragalus cicer L. ’Oxley’)”
Claim · model-written summary
Haloxyfop-methyl had little effect on resident vegetation and legume establishment was poor.
- Taxon
- AlfalfaMedicago sativae1
- Treatment
- haloxyfop-methyle0
- Interactor
- resident vegetatione0weed
- Outcome
- legume establishmente0
- Direction
- poore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fluazifop-butyl, quizalofop-ethyl, and haloxyfop-methyl had little effect on the resident vegetation and legume establishment was poor.”
e1“Alfalfa (Medicago media Pers. ’Beaver’)”
Claim · model-written summary
Sethoxydim suppressed vegetation less than glyphosate.
- Taxon
- AlfalfaMedicago sativae1
- Treatment
- Sethoxydim tested at 0.8 kg ha −1e0
- Interactor
- vegetatione0weed
- Outcome
- suppression of vegetatione0
- Direction
- lesse0
- Comparator
- glyphosate at 1.1 kg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sethoxydim tested at 0.8 kg ha −1 appeared to provide less suppression of vegetation than was achieved with glyphosate at 1.1 kg ha −1 but legume establishment was similar.”
e1“Alfalfa (Medicago media Pers. ’Beaver’)”
Claim · model-written summary
Legume establishment was similar with sethoxydim and glyphosate.
Verbatim
e0“Sethoxydim tested at 0.8 kg ha −1 appeared to provide less suppression of vegetation than was achieved with glyphosate at 1.1 kg ha −1 but legume establishment was similar.”
e1“cicer milkvetch (Astragalus cicer L. ’Oxley’)”
Claim · model-written summary
Drilling phosphorus with the seed yielded no benefit.
- Taxon
- AlfalfaMedicago sativae1
- Treatment
- drilling phosphorus at rates up to 60 kg ha −1 with the seede0
- Outcome
- benefite0
- Direction
- noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no benefit to drilling phosphorus at rates up to 60 kg ha −1 with the seed.”
e1“Alfalfa (Medicago media Pers. ’Beaver’)”
The same questions in other papers
Sethoxydim · control · Medicago sativa (alfalfa)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- negative
2 papers more in this group
See all 6 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.