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Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Sulphur dioxide did not decrease alfalfa yield under any of the conditions studied.

Taxon
alfalfaMedicago sativae0
Treatment
sulphur dioxide treatmente0
Outcome
yield of alfalfae0
Direction
no_changeinferrede0
Qualifier
under none of the conditions studiede0

Not reportedComparator

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each additional inch of rain caused a greater average wheat yield decrease in 1854–77 than across 1854–1918.

Treatment
manured solely in the autumne0
Outcome
yielde0
Direction
greatere0
Comparator
1854–1918e0
Setting
Rothamsted Experimental Station, Harpendent0

Verbatim

e0

“In the years 1854–77, when plots were manured solely in the autumn, the average decrease in yield caused by each additional inch of rain is greater than the average decrease from 1854–1918”

✓ located verbatim in the source · abstract, characters 167–355
t0

“wheat at Rothamsted Experimental Station, Harpenden”

✓ located verbatim in the source · title, characters 69–120

Title

A comparison of the effect of rainfall on spring- and autumn-dressed wheat at Rothamsted Experimental Station, Harpenden (With Five Text-figures.)

“Alumnus” The Journal of Agricultural Science 1932. doi:10.1017/s0021859600053120

Other claims from this paper (1)
Associationobservedoriginal resultmeasured

Claim · model-written summary

The nitrogen percentage of barley grain showed a progressive decrease not explained by rainfall, sowing date or yield.

Organ / stage
barley graint0
Outcome
percentage of nitrogene5
Direction
decreasee5
Qualifier
cannot be accounted for by changes in any of the above factorse5

Verbatim

t0

“the barley grain of Hoosfield”

✓ located verbatim in the source · title, characters 50–79
e5

“there is a progressive decrease in the percentage of nitrogen which cannot be accounted for by changes in any of the above factors, and which may well be due to varietal improvement”

✓ located verbatim in the source · abstract, characters 390–571

Title

Factors influencing the percentage of nitrogen in the barley grain of Hoosfield

F. Yates; D. J. Watson The Journal of Agricultural Science 1939. doi:10.1017/s0021859600052175

Other claims from this paper (3)
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under severe drought, leaf and stalk injury reduced yield less than in normal seasons.

Treatment
leaf and stalk injuriese0
Outcome
yielde0
Direction
did not result in as great a decreasee0
Comparator
normal seasonse0

Verbatim

e0

“Severe drouth in 1930 caused moisture to become the limiting factor so that leaf and stalk injuries did not result in as great a decrease in yield as in normal seasons”

✓ located verbatim in the source · abstract, characters 2452–2619
t0

“corn plant”

✓ located verbatim in the source · title, characters 75–85

Title

The effect of injury in imitation of hail damage on the development of the corn plant

J. C. Eldredge Iowa State University Digital Repository (Iowa State University) 1935

Other claims from this paper (19)
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Under some conditions sulphur dioxide significantly increased alfalfa yield.

Taxon
alfalfaMedicago sativae0
Treatment
sulphur dioxidee0
Outcome
yielde1
Direction
increasese1
Qualifier
under some of the conditionse1

Not reportedComparator

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“under some of the conditions it brought about significant yield increases”

✓ located verbatim in the source · abstract, characters 589–662

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Under most conditions sulphur dioxide had no significant effect on alfalfa yield.

Taxon
alfalfaMedicago sativae0
Treatment
sulphur dioxidee0
Outcome
yielde1
Direction
no significant effecte1
Qualifier
under most of the conditionse1

Not reportedComparator

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“under most of the conditions it had no significant effect on yield”

✓ located verbatim in the source · abstract, characters 517–583

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Plant age and the amount of supplied nutrients had no effect on the alfalfa yield response to sulphur dioxide.

Taxon
alfalfaMedicago sativae0
Treatment
amount of supplied nutrientse1
Outcome
yield response to the gas treatmente1
Direction
no effecte1
Qualifier
Age of plants and the amount of supplied nutrientse1

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“Age of plants and the amount of supplied nutrients had no effect on the yield response to the gas treatment”

✓ located verbatim in the source · abstract, characters 798–905

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sulphur dioxide treatment significantly increased the total sulphur content of alfalfa.

Taxon
alfalfaMedicago sativae0
Treatment
sulphur dioxidee1
Outcome
per cent total sulphure1
Direction
increasese1

Not reportedComparator

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“treatment with sulphur dioxide brought about significant increases in per cent total sulphur”

✓ located verbatim in the source · abstract, characters 1413–1505

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Sulphur deficiency in the nutrient supply was compensated by sulphur dioxide absorbed from the air in alfalfa.

Taxon
alfalfaMedicago sativae0
Compound
sulphur dioxidee1
Outcome
deficiencies in sulphur content of nutrient supplye1

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“deficiencies in sulphur content of nutrient supply were made up by absorption of sulphur dioxide from the air”

✓ located verbatim in the source · abstract, characters 687–796

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)
Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Neither sulphur dioxide, water supply nor sulphur content of the nutrient supply affected alfalfa nitrogen content.

Taxon
alfalfaMedicago sativae1
Treatment
sulphur dioxidee1
Outcome
nitrogen contente1
Direction
no_changeinferrede1
Qualifier
water supply, nor sulphur content of nutrient supplye1

Verbatim

e0

“Under none of the conditions studied did sulphur dioxide treatment decrease the yield of alfalfa”

✓ located verbatim in the source · abstract, characters 419–515
e1

“neither sulphur dioxide, water supply, nor sulphur content of nutrient supply had significant effect on nitrogen content of the alfalfa”

✓ located verbatim in the source · abstract, characters 1650–1785

Title

Effect of low concentrations of sulphur dioxide on yield of alfalfa and cruciferae

C. Setterstrom; P. W. Zimmerman; William Crocker OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1938

Other claims from this paper (9)

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