Search claims · PlantClaims

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Larger fertilizer applications can decrease plant yield in seasons of poor rainfall.

Taxon: cornZea mays subsp. mayse1
Treatment: larger applicationse0
Outcome: plant yielde0
Direction: decreasee0
Qualifier: seasons of poor rainfalle0

Not reportedComparator

Verbatim

e0
“larger applications can even decrease the plant yield in seasons of poor rainfall”
✓ located verbatim in the source · abstract, characters 2217–2298

e1
“corn acreage”
✓ located verbatim in the source · abstract, characters 2044–2056

Title

Food Crisis Nears Critical Stages

Barbara Tufty Science News 1966. doi:10.2307/3949861

Other claims from this paper (3)

Observation Annual corn production doubled from 26 to 52 bushels per acre since 1930.
Observation No progress in more successful new corn hybrids was reported since 1930.
Intervention effect Greater fertilizer applications gave farmers a small return.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Further decrease in plant spacing in broccoli caused an abrupt reduction in yield.

Taxon: broccoliBrassica oleracea var. italicat0
Treatment: Further decrease in the space between plantse4
Outcome: yielde4
Direction: abrupt reductione4

Not reportedComparator

Verbatim

t0
“Plant spacing in broccoli”
✓ located verbatim in the source · title, characters 0–25

e4
“Further decrease in the space between plants results in an abrupt reduction in yield”
✓ located verbatim in the source · abstract, characters 442–526

Title

Plant spacing in broccoli: —Affects yield, head size, earliness

T. S. Aldrich; M Snyder; Thomas M. Little DOAJ (DOAJ: Directory of Open Access Journals) 1961

Other claims from this paper (2)

Association Closer plant spacing in broccoli produced smaller heads.
Intervention effect Total yield of broccoli increased to a maximum when spacing was reduced to 8 or 11 inches.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Root loss of 50% after 21 weeks did not affect fruit yield, whereas 40% loss within 11 weeks accompanied a 45% yield decrease.

Taxon: tomatoSolanum lycopersicumt0
Outcome: yield decreasee0
Direction: decreasee0
Value: 45%e0
Qualifier: 40% loss within 11 weeks of plantinge0
Comparator: root losse0

Verbatim

t0
“tomato”
✓ located verbatim in the source · title, characters 20–26

e0
“A 50% root loss after 21 weeks did not affect fruit yields whereas a 40% loss within 11 weeks of planting was reflected by a 45% yield decrease”
✓ located verbatim in the source · abstract, characters 2287–2430

Title

The epidemiology of tomato brown root rot

F. T. LAST; MARION H. EBBEN Annals of Applied Biology 1966. doi:10.1111/j.1744-7348.1966.tb06870.x

Other claims from this paper (19)

Observation Three brown root rot symptoms occurred on tomato roots in infested soil without nematodes.
Observation Brown lesions appeared within a week of planting in heavily infested soils.
Observation Corkiness and black dot rarely appeared until the third month after planting.
Observation Black dot incidence sometimes rose sharply toward season end.
Association Observations suggested GSF caused more damage than C. atramentarium.
Association Yield was unrelated to black dot incidence.
Association Yield was inversely proportional to brown lesion occurrence.
Association Yield was inversely proportional to corkiness occurrence.
Association The yield relation with brown lesions was significant within eight weeks of planting.
Observation Early brown lesions mostly yielded GSF cultures, whereas later lesions more often yielded C. atramentarium.
Intervention effect Most GSF cultures produced 10 mm brown lesions on tomato seedling roots within two weeks.
Intervention effect C. atramentarium inoculation produced small pink lesions.
Intervention effect Pyrenochaeta inoculation produced no lesions.
Intervention effect GSF caused greater root damage, including root loss, in soil tests.
Association GSF root damage was reflected in decreased aerial growth.
Association GSF root damage was reflected in smaller fruit yields.
Intervention effect C. atramentarium did not affect aerial growth or fruit yield in soil tests.
Intervention effect In the second year, GSF lowered six week picking yield from 1.96 kg in controls to 1.02 kg per plant.
Observation GSF damage shifted with plant age: brown lesions appeared within days, while corkiness appeared after two to three months with stem lesions and yellow leaves.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Yield of the highly calcareous-soil population tended to decrease in highly calcareous soils.

Taxon: Cynodon dactylonCynodon dactylont0
Outcome: decreasee0
Direction: decreasee0
Setting: highly calcareous soilse0

Verbatim

e0
“though in highly calcareous soils it tended to decrease”
✓ located verbatim in the source · abstract, characters 441–496

t0
“CYNODON DACTYLON”
✓ located verbatim in the source · title, characters 49–65

Title

DIFFERENTIAL RESPONSE OF THE EDAPHIC ECOTYPES IN CYNODON DACTYLON (L) PERS. TO SOIL CALCIUM

P. S. RAMAKRISHNAN; VIJAY K. SINGH New Phytologist 1966. doi:10.1111/j.1469-8137.1966.tb05419.x

Other claims from this paper (11)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in crude protein content was usually larger at higher yields.

Outcome: decreasee0
Direction: greatere0
Comparator: higher yielde0

Not reportedTaxon

Verbatim

e0
“This decrease was usually the greater the higher yield was obtained.”
✓ located verbatim in the source · abstract, characters 1647–1715

t0
“quality of grain yield”
✓ located verbatim in the source · title, characters 74–96

Title

Sprinkler irrigation on clay soils in southern Finland III. Effect on the quality of grain yield

Paavo Elonen; Lasse Nieminen; Osmo Kara Agricultural and Food Science 1967. doi:10.23986/afsci.71677

Other claims from this paper (14)

Association Grain ripening and quality depended strongly on irrigation date.
Intervention effect Irrigation before the transitional period accelerated ripening.
Intervention effect Early irrigation reduced green grains.
Intervention effect Early irrigation improved hectoliter weights and falling numbers.
Intervention effect Irrigation after the transitional period retarded ripening.
Intervention effect Late irrigation impaired grain quality.
Observation The optimal irrigation period for yield, ripening and quality was about two weeks midway between sprouting and ear emergence.
Observation Wheat, barley and oats responded similarly to irrigation date.
Intervention effect Fertilizer placement at 8—12 cm accelerated ripening and improved hectoliter weights.
Intervention effect Fertilizer placement reduced the adverse effect of late irrigation.
Association Fertilizer rate had little influence on grain quality.
Intervention effect Irrigation did not increase grain weight.
Intervention effect Irrigation increased grain number.
Intervention effect Irrigation markedly reduced crude protein content of wheat, barley and oats regardless of timing.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Oil yield began to decrease after more than 20 days of drying.

Taxon: Pelargonium speciesPelargoniumt0
Treatment: over 20 days of dryinge0
Outcome: yield of oile0
Direction: decreasee0

Verbatim

e0
“with over 20 days of drying the yield of oil began again to decrease”
✓ located verbatim in the source · abstract, characters 210–278

t0
“Pelargonium species”
✓ located verbatim in the source · title, characters 83–102

Title

Physiological and Ecological Studies on the Secretory Function of Essential Oil in Pelargonium species

Teruo YOSHIDA Japanese Journal of Crop Science 1961. doi:10.1626/jcs.29.292

Other claims from this paper (8)

Observation The most suitable leaf drying period was 10 to 14 days, when leaf weight fell to 1/3∼1/4 of the original.
Intervention effect Shade drying for 10 to 14 days may somewhat increase oil yield compared with fresh leaves.
Intervention effect Drying leaves produced no significant change in essential oil chemical composition.
Intervention effect S. G sprinkling increased percentage oil yield.
Mechanism Greater solar radiation absorbed at the leaf surface was proposed to explain increased oil yield after S. G sprinkling.
Recommendation Drying was recommended to avoid undesirable leaf fermentation in summer.
Recommendation n-Hexane oil extraction was judged uneconomical.
Recommendation Prolonged distillation during hot summer days was recommended because after-distillation yields more oil.

Observationobservedoriginal resultnegativesimulated

Claim · model-written summary

The same selection predicted a yield decrease of 87 pounds per acre.

Taxon: Nicotiana tabacumNicotiana tabacumt0
Outcome: yield per acree0
Direction: decreasee0
Value: 87 pounds yield per acree0

Verbatim

e0
“An expected correlated response was a decrease of 87 pounds yield per acre.”
✓ located verbatim in the source · abstract, characters 752–827

t0
“Nicotiana tabacum”
✓ located verbatim in the source · title, characters 47–64

Title

Genetic Variability in Flue‐Cured Varieties of Nicotiana tabacum. II. Dixie Bright 244 ✕ Coker 139¹

D. F. Matzinger; T. J. Mann; C. Clark Cockerham Crop Science 1966. doi:10.2135/cropsci1966.0011183x000600050026x

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Field N applications tended to decrease cotton yield.

Taxon: cottonGossypium hirsutume1
Treatment: applications of Ne0
Outcome: cotton yieldse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“applications of N increased soil and petiole NO 3 but tended to decrease cotton yields.”
✓ located verbatim in the source · abstract, characters 346–433

e1
“cotton petioles”
✓ located verbatim in the source · abstract, characters 113–128

Title

Solution and Granular Nitrogen Fertilizers for Crop Residue Management¹

J. L. Stroehlein; L. B. Fenn; W. H. Fuller Agronomy Journal 1966. doi:10.2134/agronj1966.00021962005800030025x

Other claims from this paper (11)

Intervention effect Solution N with straw mineralized more rapidly than granular N in laboratory soils.
Intervention effect Field N applications increased soil nitrate.
Intervention effect Field N applications increased cotton petiole nitrate.
Intervention effect Granular N generally produced the highest soil nitrate compared with solution N.
Intervention effect Granular and solution N did not differ in cotton petiole nitrate.
Intervention effect Straw alone decreased cotton yield.
Intervention effect Straw alone did not affect soil nitrate.
Intervention effect Straw alone did not affect petiole nitrate.
Intervention effect Straw plus N tended to decrease soil nitrate relative to N alone.
Intervention effect Straw plus N tended to decrease petiole nitrate relative to N alone.
Intervention effect Solid N at 125 pounds per acre gave cotton yield statistically equal to the check.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The decrease in yield was attributed to fewer fruits being matured

Taxon: navel orangeCitrus sinensise0
Outcome: decrease in yielde4
Qualifier: fewer fruits being maturede4

Verbatim

e0
“navel orange trees were grown in outdoor solution cultures for a period of 11 years to measure the effect of iron deficiency on fruit production”
✓ located verbatim in the source · abstract, characters 13–157

e4
“The decrease in yield was due to fewer fruits being matured”
✓ located verbatim in the source · abstract, characters 675–734

Title

Iron in citrus production

E. F. Wallihan; M. J. Garber DOAJ (DOAJ: Directory of Open Access Journals) 1967

Other claims from this paper (6)

Intervention effect Iron deficiency reduced navel orange fruit production compared with leaf iron above 30 ppm
Association Fruit production declined progressively as leaf iron fell below 30 ppm, reaching essentially zero at 15 ppm of iron
Observation Fruit quality at harvest was not seriously affected, apart from some loss of color
Association Iron content of the juice was about proportional to iron content of the leaves
Intervention effect Fruit size was the same or slightly larger in iron-deficient trees
Observation Twig dieback was observed as a symptom of iron deficit that caused loss of fruit yield

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

By the delaying method the tea yield tends to decrease in the second season.

Taxon: Teat0
Treatment: delaying methode2
Outcome: tendency to decreasee1
Direction: decreasee1
Qualifier: second seasone1

Not reportedComparator

Verbatim

t0
“Extension of Tea Plucking Period by the Plant Growth Regulator”
✓ located verbatim in the source · title, characters 15–77

e1
“but has a tendency to decrease in the second season”
✓ located verbatim in the source · abstract, characters 474–525

e2
“By this delaying method”
✓ located verbatim in the source · abstract, characters 390–413

Title

Studies on the Extension of Tea Plucking Period by the Plant Growth Regulator (Part 2)

Shirô SUGII; Yoshimitsu YANASE; Shizuo TANAKA; et al. Chagyo Kenkyu Hokoku (Tea Research Journal) 1969. doi:10.5979/cha.1969.1

Other claims from this paper (8)

Intervention effect Chemical spraying in the first season did not keep its effectiveness in the second season.
Intervention effect By the delaying method the tea yield may be expected to increase in the first season.
Association The later the plucking time in the third season, the less the growth in the next year.
Association The later the plucking time in the third season, the number of shoots increased somewhat.
Intervention effect The quality of tea was not remarkably affected in this test.
Recommendation It is necessary to spray chemicals again in the second season to retard shoot growth.
Recommendation It is unprofitable to delay tea growth extremely in the third season.
Recommendation It is favourable to apply the delaying method in the plucking program to regulate plucking time.

“yield decrease”

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