Abstract
A field experiment was conducted at farmer's field in Mollisols of Tarai soils in Uttarakhand (India), to assess the direct and residual effect of sulfur fertilization in wheat-soybean cropping sequence. Four levels of sulfur (S; 0, 15, 30, and 45 kg ha−1) were applied to main crop (wheat) along with recommended dose of nitrogen (N), phosphorous (P), and potassium (K). The direct and residual effect of sulfur at highest level showed 27 and 6 percent increase in grain yield of wheat and soybean over control, respectively. The increase in grain yield of wheat was significant at each sulfur level. The direct as well as residual effect of sulfur showed significant increase in sulfur concentration and its uptake by grain and straw except increase in sulfur concentration and uptake by soybean straw. In wheat-soybean cropping sequence, the agronomic efficiency and apparent sulfur recovery decreased with increase in levels of sulfur, but the percent response increased with increasing sulfur application. Different forms of sulfur such as total sulfur, organic sulfur, calcium chloride extractable sulfur, potassium dihydrogen phosphate extractable sulfur, and non-sulfate sulfur in post-harvest soil increased according to sulfur level applied but it decreased under control and also after residual crops. The buildup of sulfur in surface soils was greater than in the deeper soils. Application of sulfur showed the positive sulfur balance and it increased with increase in sulfur level, while it was negative under control. A major portion (46–62%) of applied sulfur contributed to increase in sulfur content of root zone soil followed by unaccounted component (25–40%) and small portion (11–18%) was absorbed by wheat plant as uptake.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Highest sulfur level increased wheat grain yield 27 percent over control.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- sulfur at highest levele0
- Outcome
- grain yield of wheate0
- Direction
- increasee0
- Value
- 27e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The direct and residual effect of sulfur at highest level showed 27 and 6 percent increase in grain yield of wheat and soybean over control, respectively.”
Claim · model-written summary
Residual sulfur increased soybean grain yield 6 percent over control.
- Taxon
- soybean
Glycine maxe0 - Treatment
- sulfur at highest levele0
- Outcome
- grain yield of wheat and soybeane0
- Direction
- increasee0
- Value
- 6 percente0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The direct and residual effect of sulfur at highest level showed 27 and 6 percent increase in grain yield of wheat and soybean over control, respectively.”
Claim · model-written summary
Wheat grain yield rose significantly at every sulfur level.
- Taxon
- wheatTriticum aestivume0
- Treatment
- each sulfur levele0
- Outcome
- grain yield of wheate0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield of wheat was significant at each sulfur level.”
Claim · model-written summary
Sulfur significantly increased sulfur concentration and uptake in grain and straw, except soybean straw.
- Taxon
- wheat-soybeane0
- Treatment
- sulfure1
- Outcome
- sulfur concentration and its uptake by grain and strawe1
- Direction
- increasee1
- Qualifier
- except increase in sulfur concentration and uptake by soybean strawe1
Not reportedComparator
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“The direct as well as residual effect of sulfur showed significant increase in sulfur concentration and its uptake by grain and straw except increase in sulfur concentration and uptake by soybean straw.”
Claim · model-written summary
Agronomic efficiency and apparent sulfur recovery decreased as sulfur levels rose.
Verbatim
e0“wheat-soybean cropping sequence, the agronomic efficiency and apparent sulfur recovery decreased with increase in levels of sulfur”
Claim · model-written summary
Percent response increased as sulfur application rose.
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“the percent response increased with increasing sulfur application”
Claim · model-written summary
Postharvest soil sulfur forms increased with applied sulfur level.
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“Different forms of sulfur such as total sulfur, organic sulfur, calcium chloride extractable sulfur, potassium dihydrogen phosphate extractable sulfur, and non-sulfate sulfur in post-harvest soil increased according to sulfur level applied”
Claim · model-written summary
Soil sulfur forms decreased under control and after residual crops.
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“it decreased under control and also after residual crops”
Claim · model-written summary
Sulfur buildup was greater in surface than deeper soil.
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“The buildup of sulfur in surface soils was greater than in the deeper soils.”
Claim · model-written summary
Sulfur balance was positive with sulfur application and increased with dose.
Verbatim
e0“In wheat-soybean cropping sequence,”
e1“Application of sulfur showed the positive sulfur balance and it increased with increase in sulfur level, while it was negative under control.”
Claim · model-written summary
Of applied sulfur, 46–62% increased root-zone soil sulfur.
- Taxon
- wheatTriticum aestivume0
- Outcome
- sulfur content of root zone soile1
- Value
- 46–62%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat plant”
e1“A major portion (46–62%) of applied sulfur contributed to increase in sulfur content of root zone soil”
Claim · model-written summary
The unaccounted sulfur fraction was 25–40%.
- Taxon
- wheatTriticum aestivume0
- Outcome
- unaccounted componente1
- Value
- 25–40%e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat plant”
e1“unaccounted component (25–40%)”
Claim · model-written summary
Wheat absorbed 11–18% of applied sulfur.
- Taxon
- wheat plantTriticum aestivume0
- Outcome
- absorbed by wheat plant as uptakee0
- Value
- 11–18%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“small portion (11–18%) was absorbed by wheat plant as uptake”
The same questions in other papers
sulfur atom · yield · Glycine max (soybean)Results differ
75 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
88 papers more in this group
See all 92 papers →sulfur atom · yield · Triticum aestivum (wheat)Results differ
123 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- no effect
144 papers more in this group
See all 148 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.