Abstract
to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice. Two applications of edifenphos and three applications of tricyclazole were made at 0, 10, 25, or 100% of their labeled rates after amendment of soil with Si. At both locations, Si alone and Si combined with edifenphos reduced leaf blast severity by 22 to 75% when compared with nonamended, untreated controls, and suppression of leaf blast by Si alone was equal to or better than the full rate of edifenphos alone. Si alone suppressed neck blast as effectively or better than the full rate tricyclazole when severity was low; however, when severity was higher, a 10% rate of tricyclazole was needed in addition to Si. No differences in yield were observed between Si without fungicides and fungicides (full rate) without Si. Applications of Si made in 1995 had significant residual activity in terms of disease control and yield in 1996. The application of Si to Si-deficient soils may permit the use of reduced rates of fungicide to manage leaf and neck blast in upland rice.
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Claims 7
Claim · model-written summary
Silicon alone reduced leaf blast severity by 22 to 75% compared with nonamended, untreated controls in upland rice.
- Taxon
- upland rice
Oryza sativae0 - Treatment
- Si alonee1
- Outcome
- leaf blast severitye1
- Direction
- reducede1
- Value
- 22 to 75%e1
- Comparator
- nonamended, untreated controlse1
- Setting
- eastern Colombiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e1“At both locations, Si alone and Si combined with edifenphos reduced leaf blast severity by 22 to 75% when compared with nonamended, untreated controls”
Claim · model-written summary
Silicon combined with edifenphos reduced leaf blast severity by 22 to 75% compared with nonamended, untreated controls in upland rice.
- Taxon
- upland riceOryza sativae0
- Treatment
- Si combined with edifenphose1
- Outcome
- leaf blast severitye1
- Direction
- reducede1
- Value
- 22 to 75%e1
- Comparator
- nonamended, untreated controlse1
- Setting
- eastern Colombiae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e1“At both locations, Si alone and Si combined with edifenphos reduced leaf blast severity by 22 to 75% when compared with nonamended, untreated controls”
Claim · model-written summary
Silicon alone suppressed neck blast in upland rice as effectively or better than the full rate of tricyclazole when severity was low.
- Taxon
- upland riceOryza sativae0
- Treatment
- Si alonee2
- Outcome
- neck blaste2
- Direction
- suppressede2
- Qualifier
- when severity was lowe2
- Comparator
- full rate tricyclazolee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e2“Si alone suppressed neck blast as effectively or better than the full rate tricyclazole when severity was low”
Claim · model-written summary
A 10% rate of tricyclazole was needed in addition to Si for neck blast control when severity was higher in upland rice.
- Taxon
- upland riceOryza sativae0
- Treatment
- 10% rate of tricyclazolee3
- Outcome
- neck blaste2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e2“Si alone suppressed neck blast as effectively or better than the full rate tricyclazole when severity was low”
e3“when severity was higher, a 10% rate of tricyclazole was needed in addition to Si”
Claim · model-written summary
Silicon without fungicides and fungicides at full rate without silicon showed no differences in yield in upland rice.
- Taxon
- upland riceOryza sativae0
- Treatment
- Si without fungicidese4
- Outcome
- yielde4
- Direction
- No differencese4
- Comparator
- fungicides (full rate) without Sie4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e4“No differences in yield were observed between Si without fungicides and fungicides (full rate) without Si”
Claim · model-written summary
Applications of silicon made in 1995 had significant residual activity for disease control and yield in 1996 in upland rice.
- Taxon
- upland riceOryza sativae0
- Treatment
- Applications of Si made in 1995e5
- Outcome
- disease control and yielde5
- Direction
- significant residual activitye5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to at two locations in eastern Colombia to determine if Si combined with reduced rates of fungicide could be used to manage leaf and neck blast effectively in upland rice”
e5“Applications of Si made in 1995 had significant residual activity in terms of disease control and yield in 1996”
Claim · model-written summary
Applying silicon to Si-deficient soils may permit reduced fungicide rates to manage leaf and neck blast in upland rice.
- Taxon
- upland riceOryza sativae6
- Treatment
- The application of Si to Si-deficient soilse6
- Outcome
- use of reduced rates of fungicidee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The application of Si to Si-deficient soils may permit the use of reduced rates of fungicide to manage leaf and neck blast in upland rice”
The same questions in other papers
silicon atom · yield · Oryza sativa (rice)Results differ
15 papers in the same direction as this paper · 202 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- positive
- positive
- positive
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See all 218 papers →silicon atom · disease · Oryza sativa (rice)Positive and negative results
68 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
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See all 74 papers →edifenphos · disease · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
silicon atom · control · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
fungicide · yield · Oryza sativa (rice)Results differ
6 papers in the same direction as this paper · 28 in the opposite direction
- positive
- positive
- positive
31 papers more in this group
See all 35 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.