Abstract
Abstract Field studies were conducted at two locations in P.E.I., Canada on cereals and forages on the effect of soil applications of Selcote® Ultra and on a comparison of sodium selenate (laboratory versus commercial grade) on selenium (Se) concentration in plant tissue. Soil at both locations was sandy loam in texture and the soil pH ranged from 5.8 to 6.0. The data showed that 5 g Se ha‐1 added as Selcote® Ultra was adequate to raise the Se level in the first two cuts of forage tissue above the minimum required level of 100 ug kg‐1. For cereals, 10 g Se was necessary to achieve the same level. The residual effect of 10 g Se ha‐1 from Selcote® Ultra added in the first year maintained plant Se at >100 μg kg‐1 in the second year in the first cut of alfalfa at one location and ryegrass at both locations. A comparison of selenate‐Se (laboratory vs commercial grade) showed that both sources at similar levels of Se fertilization were equally effective in enriching barley grain with Se with no significant differences. Addition of 10 g Se ha‐1 rate was necessary to ensure adequate Se (>100 ug kg‐1) concentration in the ensuing graia Increasing rates of Se increased the Se levels in grain. Selenium concentrations were much higher in the barley boot stage vegetative tissue than in the grain. Results of this study showed that only 5 g Se ha‐1, as Selcote® Ultra, is needed to maintain adequate Se in forages. The laboratory and commercially available selenate‐Se sources were equally effective in raising Se in barley.
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Claims 8
Claim · model-written summary
Five grams selenium per hectare as Selcote raised selenium in the first two forage cuts above 100 ug kg‐1.
Verbatim
e0“5 g Se ha‐1 added as Selcote® Ultra was adequate to raise the Se level in the first two cuts of forage tissue above the minimum required level of 100 ug kg‐1”
Claim · model-written summary
Cereals required 10 g selenium to reach the same level.
Not reportedComparatorDirection
Verbatim
e0“For cereals, 10 g Se was necessary to achieve the same level”
Claim · model-written summary
First-year Selcote maintained alfalfa selenium above 100 μg kg‐1 in the next year at one location.
- Taxon
- alfalfa
Medicago sativae0 - Treatment
- 10 g Se ha‐1 from Selcote® Ultrae0
- Outcome
- plant See0
- Direction
- maintainede0
- Value
- >100 μg kg‐1e0
- Qualifier
- second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“residual effect of 10 g Se ha‐1 from Selcote® Ultra added in the first year maintained plant Se at >100 μg kg‐1 in the second year in the first cut of alfalfa at one location”
Claim · model-written summary
First-year Selcote maintained ryegrass selenium above 100 μg kg‐1 in the next year at both locations.
- Treatment
- 10 g Se ha‐1 from Selcote® Ultrae0
- Outcome
- plant See0
- Direction
- maintainede0
- Value
- >100 μg kg‐1e0
- Qualifier
- both locationse0
LoliumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“residual effect of 10 g Se ha‐1 from Selcote® Ultra added in the first year maintained plant Se at >100 μg kg‐1 in the second year in the first cut of alfalfa at one location and ryegrass at both locations”
Claim · model-written summary
Laboratory and commercial selenate were equally effective for barley grain enrichment.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- both sourcese0
- Outcome
- enriching barley grain with See0
- Direction
- equally effectivee0
- Comparator
- similar levels of Se fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“both sources at similar levels of Se fertilization were equally effective in enriching barley grain with Se with no significant differences”
Claim · model-written summary
Ten grams selenium per hectare was required for adequate grain selenium.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- 10 g Se ha‐1 ratee0
- Outcome
- Se (>100 ug kg‐1) concentratione0
- Value
- >100 ug kg‐1e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain with Se with no significant differences. Addition of 10 g Se ha‐1 rate was necessary to ensure adequate Se (>100 ug kg‐1) concentration in the ensuing graia”
t0“feed crops”
Claim · model-written summary
Increasing selenium rates increased grain selenium.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Increasing rates of See0
- Outcome
- Se levels in graine0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“barley grain with Se with no significant differences. Addition of 10 g Se ha‐1 rate was necessary to ensure adequate Se (>100 ug kg‐1) concentration in the ensuing graia Increasing rates of Se increased the Se levels in grain”
t0“feed crops”
Claim · model-written summary
Barley boot-stage vegetative tissue had higher selenium than grain.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- boot stage vegetative tissuee0
- Outcome
- Selenium concentrationse0
- Direction
- much highere0
- Comparator
- graine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Selenium concentrations were much higher in the barley boot stage vegetative tissue than in the grain”
The same questions in other papers
selenium atom · nutrient: content · LoliumPositive and negative results
1 in the opposite direction
- negative
selenium atom · nutrient: content · Medicago sativa (alfalfa)Positive and negative results
12 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
10 papers more in this group
See all 14 papers →selenium atom · molecular: metabolites · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
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.