Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

Varieties with a greater yield decrease under sub-soiling showed a greater decrease in the ratio.

Taxon: rice plantOryza sativae0
Material: varieties which showed greater extent of yield decrease by sub-soilinge1
Outcome: the ratioe1
Direction: greater decreasee1

Verbatim

e0
“Sub-soiling method, breaking sub-soil and not mixing to surface soil, was tested with regard to the growth and yield of rice plant”
✓ located verbatim in the source · abstract, characters 0–130

e1
“varieties which showed greater extent of yield decrease by sub-soiling were accompanied with greater decrease in the ratio”
✓ located verbatim in the source · abstract, characters 1602–1724

Title

Studis on Sub-Soiling in Paddy Field

Hiroyuki TAKAHASHI; Yasuo TAKAHASHI; Hiroshi IKEDA Japanese Journal of Crop Science 1962. doi:10.1626/jcs.31.98

Other claims from this paper (18)

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.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Withholding nitrogen after flowering did not decrease green soybean yield.

Taxon: green soybeane1
Treatment: withholding nitrogen after floweringe0
Outcome: yielde0
Direction: no decreasee0

Not reportedComparator

Verbatim

e0
“there was no decrease in yield in treatments withholding nitrogen after flowering”
✓ located verbatim in the source · abstract, characters 471–552

e1
“In green soybean”
✓ located verbatim in the source · abstract, characters 201–217

Title

Effects of nitrogen supplied in various growth stages on the growth and yield of several vegetable crops

M. IWATA; A. UTADA Journal of the Japanese Society for Horticultural Science 1968. doi:10.2503/jjshs.37.57

Other claims from this paper (10)

Intervention effect Withholding nitrogen in the first half delayed green soybean flowering.
Intervention effect Withholding nitrogen in the first half delayed green soybean harvest.
Intervention effect Stopping nitrogen for 2-3 weeks before flowering reduced green soybean pod yield.
Intervention effect Withholding nitrogen during rapid outer leaf growth reduced autumn cabbage head weight.
Intervention effect Withholding nitrogen after early June did not significantly change cabbage head weight versus continuous supply.
Intervention effect Withholding nitrogen in winter did not significantly change cabbage head weight versus continuous supply.
Intervention effect Stopping nitrogen at any growth stage suppressed turnip top growth.
Intervention effect Stopping nitrogen at any growth stage suppressed turnip root yield.
Intervention effect Withholding nitrogen for 2 weeks before harvest improved turnip root yield versus control.
Intervention effect Withholding nitrogen immediately before harvest suppressed cauliflower curd growth.

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 resultpositivemeasured

Claim · model-written summary

Heavy fertilization prevented a marked vegetable yield decrease in raw subsoil.

Taxon: vegetable cropse0
Treatment: heavily fertilizede0
Outcome: yieldse0
Direction: did not decrease remarkablye0

Not reportedComparator

Verbatim

e0
“the yields of vegetable crops did not decrease remarkably in the raw subsoil when it was heavily fertilized”
✓ located verbatim in the source · abstract, characters 1503–1610

Title

The effect of deep plowing on growth and yield of vegetable crops

H. OHTA; T. KODAMA; K. WATANABE Journal of the Japanese Society for Horticultural Science 1962. doi:10.2503/jjshs.31.315

Other claims from this paper (11)

Intervention effect Deep plowing favored growth and yield of most vegetable crops.
Intervention effect Heavy fertilizer application made deep plowing more effective.
Intervention effect Raw subsoil was unfavorable to cereal and forage crop growth and yield.
Observation Most heavily fertilized vegetable crops were relatively insensitive to subsoil inhibition.
Intervention effect Frost-exposed, heavily fertilized subsoil supported excellent vegetable growth and yield.
Intervention effect Poor subsoil inhibited growth of most vegetables in pots.
Intervention effect Fertile subsoil with heavy fertilizer supported vigorous growth of most vegetables in pots.
Intervention effect Some crops grew better in subsoil than topsoil with the same fertilizer amount.
Association High yielding crops under deep plowing were less affected by poor subsoil nutrition.
Association Sensitivity to aluminum toxicity and nutrient deficiency was suggested to relate to subsoil adaptation.
Mechanism Good soil aeration after deep plowing was linked to root development and active nutrient uptake.

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics