Abstract
Abstract Field studies were conducted over three years on Podzol soils in Prince Edward Island (P.E.I.) on the effect of sulfur (S), calcium (Ca), and boron (B) fertilization on tissue nutrient concentration and potato yield. Leaf tissues were sampled at 10% bloom and again two weeks later for S, Ca, and B analysis. In the absence of S fertilization, S deficiency symptoms, as evidenced by lighter green foliage were found. The mean tuber yield response due to S addition was 1.1 (SE = 0.40) t/ha. Addition of S either as gypsum or magnesium sulfate was effective in overcoming the S deficiency symptoms and in increasing the S concentration in the leaves. Calcium and B additions did not affect the tuber yields. While Ca applications were ineffective in increasing the Ca concentration in the leaf tissue, B applications significantly increased the leaf tissue B concentration in both samplings. The interaction effects between S, Ca, and B were not significant on any of the components tested. Data indicated that 0.25 to 0.27 and 0.28 to 0.32% S in potato leaves were in the S deficiency and sufficiency range, respectively. This is the first documented case of S deficiency in the field in P.E.I. Potatoes and possibly other crops should be monitored for S‐deficiency symptoms and S levels in plant tissues should be recorded to detect any trends.
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Claims 10
Claim · model-written summary
Sulfur addition increased potato tuber yield by a mean of 1.1 t/ha compared with no sulfur fertilization.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- S additione1
- Outcome
- tuber yielde1
- Direction
- increaseinferrede1
- Value
- 1.1 (SE = 0.40) t/hae1
- Comparator
- absence of S fertilizatione2
- Setting
- Prince Edward Islande3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“The mean tuber yield response due to S addition was 1.1 (SE = 0.40) t/ha”
e2“In the absence of S fertilization, S deficiency symptoms, as evidenced by lighter green foliage were found”
e3“Field studies were conducted over three years on Podzol soils in Prince Edward Island (P.E.I.)”
Claim · model-written summary
Sulfur added as gypsum or magnesium sulfate increased the sulfur concentration in potato leaves compared with no sulfur fertilization.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- leavese1
- Treatment
- gypsum or magnesium sulfatee1
- Outcome
- S concentratione1
- Direction
- increasinge1
- Comparator
- absence of S fertilizatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“Addition of S either as gypsum or magnesium sulfate was effective in overcoming the S deficiency symptoms and in increasing the S concentration in the leaves”
e2“In the absence of S fertilization, S deficiency symptoms, as evidenced by lighter green foliage were found”
Claim · model-written summary
Sulfur added as gypsum or magnesium sulfate overcame the sulfur deficiency symptoms in potato.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- gypsum or magnesium sulfatee1
- Outcome
- S deficiency symptomse2
- Comparator
- absence of S fertilizatione2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“Addition of S either as gypsum or magnesium sulfate was effective in overcoming the S deficiency symptoms and in increasing the S concentration in the leaves”
e2“In the absence of S fertilization, S deficiency symptoms, as evidenced by lighter green foliage were found”
Claim · model-written summary
Calcium applications were ineffective in increasing the calcium concentration in potato leaf tissue.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- leaf tissuee1
- Treatment
- Ca applicationse1
- Outcome
- Ca concentration in the leaf tissuee1
- Direction
- ineffective in increasinge1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“While Ca applications were ineffective in increasing the Ca concentration in the leaf tissue”
Claim · model-written summary
Boron applications significantly increased the boron concentration in potato leaf tissue in both samplings.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- leaf tissuee1
- Treatment
- B applicationse1
- Outcome
- B concentratione1
- Direction
- increasede1
- Qualifier
- in both samplingse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“B applications significantly increased the leaf tissue B concentration in both samplings”
Claim · model-written summary
Calcium and boron additions did not affect potato tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Calcium and B additionse1
- Outcome
- tuber yieldse1
- Direction
- did not affecte1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“Calcium and B additions did not affect the tuber yields”
Claim · model-written summary
The interaction effects between sulfur, calcium and boron were not significant on any of the components tested in potato.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- S, Ca, and Be1
- Outcome
- interaction effectse1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“The interaction effects between S, Ca, and B were not significant on any of the components tested”
Claim · model-written summary
Potato leaves with 0.25 to 0.27% S were in the S deficiency range and those with 0.28 to 0.32% S were in the sufficiency range.
- Taxon
- potatoSolanum tuberosume1
- Outcome
- S in potato leavese1
- Value
- 0.25 to 0.27 and 0.28 to 0.32%e1
- Qualifier
- deficiency and sufficiency range, respectivelye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Data indicated that 0.25 to 0.27 and 0.28 to 0.32% S in potato leaves were in the S deficiency and sufficiency range, respectively”
Claim · model-written summary
The field S deficiency recorded in Prince Edward Island was the first documented case of such deficiency in the field there.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- S deficiencye1
- Setting
- P.E.I.e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato yield”
e1“This is the first documented case of S deficiency in the field in P.E.I.”
Claim · model-written summary
Potatoes and possibly other crops should be monitored, and plant tissue S levels recorded, to detect S deficiency trends.
- Taxon
- PotatoesSolanum tuberosume1
- Outcome
- S levels in plant tissuese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Potatoes and possibly other crops should be monitored”
e2“S levels in plant tissues should be recorded to detect any trends”
The same questions in other papers
calcium atom · yield · Solanum tuberosum (potato)Results differ
1 paper in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
14 papers more in this group
See all 18 papers →boron atom · yield · Solanum tuberosum (potato)Results differ
4 papers in the same direction as this paper · 21 in the opposite direction
- positive
- positive
- positive
22 papers more in this group
See all 26 papers →magnesium sulfate · disease · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- no effect
magnesium sulfate · nutrient: content · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
sulfur atom · yield · Solanum tuberosum (potato)Positive and negative results
8 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
6 papers more in this group
See all 10 papers →calcium atom · nutrient: content · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 19 in the opposite direction
- positive
- positive
- positive
17 papers more in this group
See all 21 papers →boron atom · nutrient: content · Solanum tuberosum (potato)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
lime · disease · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.