Abstract
Because of its small seed size, alfalfa (Medicago sativa L.) typically is seeded at a shallow depth, putting Rhizobium inoculated onto the seed coat at a high risk of desiccation. Granular inoculants may provide a superior delivery formulation for Rhizobium because the inoculant can be placed deeper in the soil than the seed, where it is protected from desiccation. Sinorhizobium meliloti cv. Beaver delivered as (1) pre-inoculated alfalfa seed from the inoculant manufacturer, (2) commercial peat-based, self-sticking inoculant applied on-site, and (3) granular inoculant placed with the seed or (4) banded below and to the side of the seed was evaluated against uninoculated alfalfa controls at three field sites in Saskatchewan. Overall, alfalfa inoculated with the granular formulation placed below and to the side of the alfalfa seed was among the highest biomass producer in the establishment year, although it did not exhibit superior nodulation or biological N fixation compared with the other treatments. Any advantage conferred by the granular inoculant in the establishment year did not persist through the first and second production years. Under the conditions of this study, the delivery formulation had no long-term affect on alfalfa productivity, nodulation and biological N fixation. Furthermore, none of the inoculant treatments were consistently superior to the uninoculated controls. Key words: Alfalfa, granular inoculant, peat inoculant, pre-inoculated seed, Medicago sativa L., Sinorhizobium meliloti
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Claims 5
Claim · model-written summary
Granular inoculant placed below and beside the seed ranked among the highest biomass producers in establishment year.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- granular formulation placed below and to the side of the alfalfa seede0
- Outcome
- biomass producere0
- Direction
- higheste0
RhizobiumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“alfalfa inoculated with the granular formulation placed below and to the side of the alfalfa seed was among the highest biomass producer in the establishment year”
t0“Rhizobium inoculant formulations”
Claim · model-written summary
The granular placement did not improve nodulation or N fixation relative to other treatments.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- inoculant formulationst0
- Outcome
- nodulation or biological N fixatione0
- Direction
- did not exhibit superiore0
- Comparator
- the other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it did not exhibit superior nodulation or biological N fixation compared with the other treatments.”
t0“Rhizobium inoculant formulations for alfalfa”
Claim · model-written summary
The establishment-year granular inoculant advantage did not persist into the first two production years.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- granular inoculante0
- Outcome
- advantagee0
- Direction
- did not persiste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Any advantage conferred by the granular inoculant in the establishment year did not persist through the first and second production years.”
t0“Rhizobium inoculant formulations for alfalfa”
Claim · model-written summary
Delivery formulation had no long-term effect on productivity, nodulation, or biological N fixation.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- delivery formulatione0
- Outcome
- alfalfa productivity, nodulation and biological N fixatione0
- Direction
- no long-term affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the delivery formulation had no long-term affect on alfalfa productivity, nodulation and biological N fixation.”
t0“Rhizobium inoculant formulations”
Claim · model-written summary
No inoculant treatment consistently outperformed uninoculated controls.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- inoculant treatmentse0
- Outcome
- consistently superiore0
- Direction
- nonee0
- Comparator
- uninoculated controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“none of the inoculant treatments were consistently superior to the uninoculated controls.”
t0“Rhizobium inoculant formulations for alfalfa”
The same questions in other papers
inoculation · Rhizobium · Medicago sativa (alfalfa)Positive and negative results
2 papers in the same direction as this paper · 9 in the opposite direction
- positive
- positive
- positive
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See all 12 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.