Abstract
Abstract Two to four crops were grown in sequence in three series of pots on two soils, Charlottetown fine sandy loam (Chfsl) and Queens sandy clay loam (Qscl). The rates of applied S to the soils were: 0, 50, 100, and 150 ppm. None of the crops grown in the first sequence responded to S, but crops grown in later sequences responded to S in varying degrees. Sulfur applications resulted in about 2‐ to 4‐fold increases in the yield of rutabaga roots ( Brassica napobrassica , Mill. cv. ‘York’). The plants deficient in S had thin roots and the leaves were reddish‐yellow with scorched edges. The kernel and straw yields of barley ( Hordeum distichon L., cv. ‘Volla’) and wheat ( Triticum aestivum L., cv. ‘Opal’) increased substantially with the addition of S. The S‐deficient plants of barley and wheat were lighter in color with thin stems. Alfalfa ( Medicago sativa L., cv. ‘Saranac’) responded to S, with increases of much greater magnitude in the second and third cuts than those in the first cut. The S‐deficiency symptoms, noted as stunting and general yellowing of the entire plants, were mostly confined to the second and third cuts. Four‐ to five‐fold increases in cauliflower ( Brassica oleracea botrytis L., cv. ‘Snowball’) yield with S 3 and S 4 treatments were obtained on Qscl, while on the Chfsl the yields decreased at S 3 and S 4 levels of S. The yield decreases on the Chfsl were caused by a severe Mo deficiency. Sulfur‐deficient cauliflower plants were stunted with general yellowing of leaf edges. The available soil SO 4 ‐S levels of 2.0 and 2.4 ppm for alfalfa third cut and barley were in the deficiency range. The deficiency levels for wheat and cauliflower would likely be below 2.8 and 4.0 ppm, respectively.
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Claims 18
Claim · model-written summary
First-sequence crops did not respond to applied sulfur.
Not reportedComparator
Verbatim
e0“None of the crops grown in the first sequence responded to S”
Claim · model-written summary
Later-sequence crops responded to sulfur to varying degrees.
Not reportedComparator
Verbatim
e0“crops grown in later sequences responded to S in varying degrees”
Claim · model-written summary
Sulfur applications increased rutabaga root yield about two to fourfold.
- Taxon
- Brassica napobrassica
Brassica napus subsp. rapiferae0
- Material
- ‘York’e0
- Treatment
- Sulfur applicationse0
- Outcome
- yield of rutabaga rootse0
- Direction
- increasese0
- Value
- 2‐ to 4‐folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfur applications resulted in about 2‐ to 4‐fold increases in the yield of rutabaga roots ( Brassica napobrassica , Mill. cv. ‘York’)”
Claim · model-written summary
Sulfur-deficient rutabaga had thin roots and reddish-yellow scorched leaves.
- Taxon
- Brassica napobrassica
Brassica napus subsp. rapiferat0
- Treatment
- deficient in Se0
- Outcome
- thin roots and the leaves were reddish‐yellow with scorched edgese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The plants deficient in S had thin roots and the leaves were reddish‐yellow with scorched edges”
t0“rutabaga roots ( Brassica napobrassica”
Claim · model-written summary
Sulfur addition substantially increased barley kernel and straw yields.
- Taxon
- barley
Hordeum vulgaree0 - Material
- ‘Volla’e0
- Treatment
- addition of Se0
- Outcome
- kernel and straw yieldse0
- Direction
- increased substantiallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The kernel and straw yields of barley ( Hordeum distichon L., cv. ‘Volla’) and wheat ( Triticum aestivum L., cv. ‘Opal’) increased substantially with the addition of S”
Claim · model-written summary
Sulfur addition substantially increased wheat kernel and straw yields.
- Taxon
- wheat
Triticum aestivume0 - Material
- ‘Opal’e0
- Treatment
- addition of Se0
- Outcome
- kernel and straw yieldse0
- Direction
- increased substantiallye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The kernel and straw yields of barley ( Hordeum distichon L., cv. ‘Volla’) and wheat ( Triticum aestivum L., cv. ‘Opal’) increased substantially with the addition of S”
Claim · model-written summary
Sulfur-deficient barley plants were lighter colored with thin stems.
- Taxon
- barley
Hordeum vulgaree0 - Treatment
- S‐deficiente0
- Outcome
- lighter in color with thin stemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The S‐deficient plants of barley and wheat were lighter in color with thin stems”
Claim · model-written summary
Sulfur-deficient wheat plants were lighter colored with thin stems.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- S‐deficiente0
- Outcome
- lighter in color with thin stemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The S‐deficient plants of barley and wheat were lighter in color with thin stems”
Claim · model-written summary
Sulfur increased alfalfa response more in second and third cuts than in the first.
- Taxon
- Alfalfa
Medicago sativae0 - Material
- ‘Saranac’e0
- Organ / stage
- second and third cutse0
- Treatment
- Se0
- Outcome
- responded to Se0
- Direction
- increases of much greater magnitudee0
- Comparator
- first cute0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Alfalfa ( Medicago sativa L., cv. ‘Saranac’) responded to S, with increases of much greater magnitude in the second and third cuts than those in the first cut”
Claim · model-written summary
Sulfur deficiency caused mostly second- and third-cut alfalfa stunting and yellowing.
- Taxon
- Alfalfa
Medicago sativat0 - Organ / stage
- second and third cutse0
- Treatment
- S‐deficiencye0
- Outcome
- stunting and general yellowing of the entire plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The S‐deficiency symptoms, noted as stunting and general yellowing of the entire plants, were mostly confined to the second and third cuts”
t0“Alfalfa ( Medicago sativa”
Claim · model-written summary
Sulfur treatments S3 and S4 increased cauliflower yield four- to fivefold on Qscl.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Material
- ‘Snowball’e0
- Treatment
- S 3 and S 4 treatmentse0
- Outcome
- yielde0
- Direction
- increasese0
- Value
- Four‐ to five‐folde0
- Setting
- Qscle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Four‐ to five‐fold increases in cauliflower ( Brassica oleracea botrytis L., cv. ‘Snowball’) yield with S 3 and S 4 treatments were obtained on Qscl”
Claim · model-written summary
Sulfur levels S3 and S4 decreased cauliflower yield on Chfsl.
- Taxon
- cauliflower
Brassica oleracea var. botrytist0 - Treatment
- S 3 and S 4 levels of Se0
- Outcome
- yieldse0
- Direction
- decreasede0
- Setting
- Chfsle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“while on the Chfsl the yields decreased at S 3 and S 4 levels of S”
t0“cauliflower ( Brassica oleracea”
Claim · model-written summary
Severe molybdenum deficiency caused the cauliflower yield decreases on Chfsl.
- Taxon
- cauliflower
Brassica oleracea var. botrytist0 - Compound
- Moe0
- Outcome
- yield decreasese0
- Qualifier
- severe Mo deficiencye0
- Setting
- Chfsle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The yield decreases on the Chfsl were caused by a severe Mo deficiency”
t0“cauliflower ( Brassica oleracea”
Claim · model-written summary
Sulfur-deficient cauliflower was stunted with yellow leaf edges.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Treatment
- Sulfur‐deficiente0
- Outcome
- stunted with general yellowing of leaf edgese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Sulfur‐deficient cauliflower plants were stunted with general yellowing of leaf edges”
Claim · model-written summary
Available soil sulfate sulfur at 2.0 ppm was in the deficiency range for third-cut alfalfa.
- Taxon
- alfalfa
Medicago sativae0 - Organ / stage
- third cute0
- Outcome
- available soil SO 4 ‐S levelse0
- Direction
- deficiency rangee0
- Value
- 2.0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The available soil SO 4 ‐S levels of 2.0 and 2.4 ppm for alfalfa third cut and barley were in the deficiency range”
Claim · model-written summary
Available soil sulfate sulfur at 2.4 ppm was in the deficiency range for barley.
- Taxon
- barley
Hordeum vulgaree0 - Outcome
- available soil SO 4 ‐S levelse0
- Direction
- deficiency rangee0
- Value
- 2.4 ppme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The available soil SO 4 ‐S levels of 2.0 and 2.4 ppm for alfalfa third cut and barley were in the deficiency range”
Claim · model-written summary
The likely sulfate sulfur deficiency level for wheat was below 2.8 ppm.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The deficiency levels for wheat and cauliflower would likely be below 2.8 and 4.0 ppm, respectively”
Claim · model-written summary
The likely sulfate sulfur deficiency level for cauliflower was below 4.0 ppm.
- Taxon
- cauliflower
Brassica oleracea var. botrytise0 - Outcome
- deficiency levelse0
- Direction
- belowe0
- Value
- 4.0 ppme0
- Qualifier
- likelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The deficiency levels for wheat and cauliflower would likely be below 2.8 and 4.0 ppm, respectively”
The same questions in other papers
sulfur atom · yield · Brassica napus (oilseed rape)Results differ
48 papers in the same direction as this paper · 10 in the opposite direction
- no effect
- no effect
- negative
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See all 59 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.