Abstract
Abstract Phosphoric acid (H 3 PO 4 ), applied as an over-the-row banded spray to Willamette silt loam, significantly hastened the emergence of seedlings of carrot ( Daucus carota L.), cauliflower ( Brassica oleracea L. var. botrytis ), cucumber ( Cucumis sativus L.), lettuce ( Lactuca sativa L.), and onion ( Allium cepa L.). Final stands were usually improved. The effect was particularly pronounced in early plantings. Banded H 3 PO 4 decreased soil crusting as measured by decreased mechanical resistance to penetration of the soil surface. Phosphorus content of seedlings of carrot, cucumber, lettuce, and onion was significantly increased with H 3 PO 4 anticrustant. Yields were usually greater on soils treated with H 3 PO 4 than on soils treated with either broadcast or subsurface banded applications of concentrated superphosphate (CSP). Subsurface bands of CSP resulted in poorer stands, lower leaf P content, and smaller yields of carrot, lettuce and onion than did banded H 3 PO 4 at the same rate of P application. However, both leaf P content and yield of cucumber tended to be greater with CSP than with H 3 PO 4 . Phosphoric acid treatment improved stand of carrot and lettuce at soil pH between 5.0 and 6.1 but decreased stand at pH 6.6.
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Claims 12
Claim · model-written summary
Banded phosphoric acid hastened emergence in five vegetable crops.
- Taxon
- carrot
Daucus carotae0 - Treatment
- Phosphoric acid (H 3 PO 4 )e0
- Outcome
- emergence of seedlingse0
- Direction
- hastenede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphoric acid (H 3 PO 4 ), applied as an over-the-row banded spray to Willamette silt loam, significantly hastened the emergence of seedlings of carrot ( Daucus carota L.), cauliflower ( Brassica oleracea L. var. botrytis ), cucumber ( Cucumis sativus L.), lettuce ( Lactuca sativa L.), and onion ( Allium cepa L.)”
Claim · model-written summary
Final stands were usually improved by banded phosphoric acid.
Not reportedComparator
Verbatim
e0“Final stands were usually improved”
e1“Banded H 3 PO 4 decreased soil crusting”
t0“Seedling”
Claim · model-written summary
Banded phosphoric acid decreased soil surface mechanical resistance.
- Taxon
- carrotDaucus carotae1
- Treatment
- Banded H 3 PO 4e0
- Outcome
- mechanical resistance to penetration of the soil surfacee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Banded H 3 PO 4 decreased soil crusting as measured by decreased mechanical resistance to penetration of the soil surface”
e1“seedlings of carrot, cucumber, lettuce, and onion”
Claim · model-written summary
Phosphoric acid significantly increased seedling phosphorus in four crops.
- Taxon
- carrotDaucus carotae0
- Treatment
- H 3 PO 4 anticrustante0
- Outcome
- Phosphorus content of seedlingse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus content of seedlings of carrot, cucumber, lettuce, and onion was significantly increased with H 3 PO 4 anticrustant”
Claim · model-written summary
Phosphoric acid soils usually yielded more than concentrated superphosphate soils.
- Taxon
- carrotDaucus carotae1
- Treatment
- H 3 PO 4e0
- Outcome
- Yieldse0
- Direction
- greatere0
- Comparator
- concentrated superphosphate (CSP)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yields were usually greater on soils treated with H 3 PO 4 than on soils treated with either broadcast or subsurface banded applications of concentrated superphosphate (CSP)”
e1“seedlings of carrot, cucumber, lettuce, and onion”
Claim · model-written summary
Subsurface CSP produced poorer stands in carrot, lettuce and onion than phosphoric acid.
- Taxon
- carrotDaucus carotae0
- Treatment
- Subsurface bands of CSPe0
- Outcome
- standse0
- Direction
- poorere0
- Comparator
- banded H 3 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Subsurface bands of CSP resulted in poorer stands, lower leaf P content, and smaller yields of carrot, lettuce and onion than did banded H 3 PO 4 at the same rate of P application”
Claim · model-written summary
Subsurface CSP produced lower leaf phosphorus in carrot, lettuce and onion.
- Taxon
- carrotDaucus carotae0
- Treatment
- Subsurface bands of CSPe0
- Outcome
- leaf P contente0
- Direction
- lowere0
- Comparator
- banded H 3 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Subsurface bands of CSP resulted in poorer stands, lower leaf P content, and smaller yields of carrot, lettuce and onion than did banded H 3 PO 4 at the same rate of P application”
Claim · model-written summary
Subsurface CSP produced smaller yields in carrot, lettuce and onion.
- Taxon
- carrotDaucus carotae0
- Treatment
- Subsurface bands of CSPe0
- Outcome
- yieldse0
- Direction
- smallere0
- Comparator
- banded H 3 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Subsurface bands of CSP resulted in poorer stands, lower leaf P content, and smaller yields of carrot, lettuce and onion than did banded H 3 PO 4 at the same rate of P application”
Claim · model-written summary
Cucumber leaf phosphorus tended to be greater with CSP than phosphoric acid.
- Taxon
- cucumber
Cucumis sativuse0 - Treatment
- CSPe0
- Outcome
- leaf P contente0
- Direction
- greatere0
- Comparator
- H 3 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both leaf P content and yield of cucumber tended to be greater with CSP than with H 3 PO 4”
Claim · model-written summary
Cucumber yield tended to be greater with CSP than phosphoric acid.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- CSPe0
- Outcome
- yield of cucumbere0
- Direction
- greatere0
- Comparator
- H 3 PO 4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both leaf P content and yield of cucumber tended to be greater with CSP than with H 3 PO 4”
Claim · model-written summary
Phosphoric acid improved carrot and lettuce stands at pH 5.0 to 6.1.
- Taxon
- carrotDaucus carotae0
- Treatment
- Phosphoric acid treatmente0
- Outcome
- stande0
- Direction
- improvede0
- Qualifier
- soil pH between 5.0 and 6.1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphoric acid treatment improved stand of carrot and lettuce at soil pH between 5.0 and 6.1”
Claim · model-written summary
Phosphoric acid decreased carrot and lettuce stands at pH 6.6.
- Taxon
- carrotDaucus carotae0
- Treatment
- Phosphoric acid treatmente0
- Outcome
- stande0
- Direction
- decreasede0
- Qualifier
- pH 6.6e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphoric acid treatment improved stand of carrot and lettuce at soil pH between 5.0 and 6.1 but decreased stand at pH 6.6”
The same questions in other papers
phosphoric acid · yield · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- positive
phosphorus · yield · Daucus carota (carrot)Results differ
4 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
11 papers more in this group
See all 15 papers →phosphorus · nutrient: content · Cucumis sativus (cucumber)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
2 papers more in this group
See all 6 papers →phosphorus · yield · Cucumis sativus (cucumber)Positive and negative results
10 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 papers →phosphorus · nutrient: content · Daucus carota (carrot)Results agree
1 paper in the same direction as this paper
- no effect
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.