Abstract
Sulfur deficiencies have increasingly occurred in crops due to declined use of S‐bearing fertilizers and reduced atmospheric S deposition. A field trial was conducted on an S‐ and Zn‐deficient soil at Jackson, TN in 2007–2010, to evaluate cotton ( Gossypium hirsutum L.) yield and fiber quality responses to S and Zn applications. Sulfur treatments of 0, 11, 22, and 34 kg S ha −1 were broadcast before planting. Zinc treatments of 0 and 0.29 kg Zn ha −1 were foliar applied at matchhead square. Soil S levels were increased by applying 34 kg S ha −1 in 3 out of 4 yr. Leaf S concentrations were increased by S applications. Application of 22 or 34 kg S ha −1 increased lint yields by 8 to 9% and micronaire by 4 to 5% averaged over the three normal growing seasons (2008–2010). Foliar Zn treatments had no significant effect on leaf Zn levels or lint yields and quality. A container‐grown cotton trial was also conducted to study effects of S deficiency on yield components. Plants were fed nutrient solutions with high or low S concentrations. The low S treatment reduced leaf S concentration but tended to increase leaf concentrations of other nutrients. Seedcotton per plant was reduced by S deficiency in 3 of 4 yr, with fewer bolls per plant and fewer locules per boll. Results indicate that application of 22 to 34 kg S ha −1 may be beneficial for no‐till cotton on soils testing low for S in Tennessee and similar environments.
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Claims 11
Claim · model-written summary
Application of 22 or 34 kg S ha −1 increased cotton lint yield by 8 to 9%
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- Application of 22 or 34 kg S ha −1e0
- Outcome
- lint yieldse0
- Direction
- increasede0
- Value
- 8 to 9%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e0“Application of 22 or 34 kg S ha −1 increased lint yields by 8 to 9% and micronaire by 4 to 5% averaged over the three normal growing seasons”
Claim · model-written summary
Application of 22 or 34 kg S ha −1 increased cotton micronaire by 4 to 5%
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Application of 22 or 34 kg S ha −1e0
- Outcome
- micronairee0
- Direction
- increasede0
- Value
- 4 to 5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e0“Application of 22 or 34 kg S ha −1 increased lint yields by 8 to 9% and micronaire by 4 to 5% averaged over the three normal growing seasons”
Claim · model-written summary
Foliar zinc treatments had no significant effect on leaf zinc levels, lint yield or lint quality of cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Foliar Zn treatmentse2
- Outcome
- leaf Zn levels or lint yields and qualitye2
- Direction
- no_changeinferrede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e2“Foliar Zn treatments had no significant effect on leaf Zn levels or lint yields and quality”
Claim · model-written summary
Sulfur applications increased leaf sulfur concentrations in cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- S applicationse1
- Outcome
- Leaf S concentrationse1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e1“Leaf S concentrations were increased by S applications”
Claim · model-written summary
Applying 34 kg S ha -1 increased soil S levels in 3 of 4 years
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- applying 34 kg S ha −1e3
- Outcome
- Soil S levelse3
- Direction
- increasede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e3“Soil S levels were increased by applying 34 kg S ha −1 in 3 out of 4 yr”
Claim · model-written summary
Low sulfur reduced leaf sulfur concentration in container-grown cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- low S treatmente4
- Outcome
- leaf S concentratione4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e4“The low S treatment reduced leaf S concentration but tended to increase leaf concentrations of other nutrients”
Claim · model-written summary
Low sulfur tended to increase leaf concentrations of other nutrients in container-grown cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- low S treatmente4
- Outcome
- leaf concentrations of other nutrientse4
- Direction
- increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e4“The low S treatment reduced leaf S concentration but tended to increase leaf concentrations of other nutrients”
Claim · model-written summary
Sulfur deficiency reduced seedcotton per plant in 3 of 4 years
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- S deficiencye5
- Outcome
- Seedcotton per plante5
- Direction
- reducede5
- Value
- 3 of 4 yre5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e5“Seedcotton per plant was reduced by S deficiency in 3 of 4 yr”
Claim · model-written summary
Sulfur deficiency reduced bolls per plant in cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- S deficiencye5
- Outcome
- bolls per plante6
- Direction
- fewere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e5“Seedcotton per plant was reduced by S deficiency in 3 of 4 yr”
e6“with fewer bolls per plant and fewer locules per boll”
Claim · model-written summary
Sulfur deficiency reduced locules per boll in cotton
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- S deficiencye5
- Outcome
- locules per bolle6
- Direction
- fewere6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e5“Seedcotton per plant was reduced by S deficiency in 3 of 4 yr”
e6“with fewer bolls per plant and fewer locules per boll”
Claim · model-written summary
Applying 22 to 34 kg S ha -1 may be beneficial for cotton on soils testing low in sulfur
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- may be beneficiale7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Lint Yields and Qualities”
e7“Results indicate that application of 22 to 34 kg S ha −1 may be beneficial”
The same questions in other papers
sulfur atom · yield · Gossypium hirsutum (cotton)Results differ
15 papers in the same direction as this paper · 3 in the opposite direction
This paper is about lacking the nutrient, so it counts the other way round here.
- no effect
- no effect
- positive
15 papers more in this group
See all 19 papers →zinc atom · quality: general · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →sulfur atom · nutrient: content · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →application · quality: general · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
7 papers more in this group
See all 11 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.