Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

Leaf tissue nutrient concentrations differ among CBD-hemp cultivars.

Taxon: CBD-hempe0
Material: CBD-hemp cultivarse0
Outcome: leaf tissue nutrient concentrationse0

Verbatim

e0
“Different leaf tissue nutrient concentrations have been found in CBD-hemp cultivars.”
✓ located verbatim in the source · abstract, characters 184–268

Title

Expanding Leaf Tissue Nutrient Survey Ranges for Greenhouse Cannabidiol-Hemp

Hunter Landis; Kristin Hicks; Paul Cockson; et al. Crop Forage & Turfgrass Management 2019. doi:10.2134/cftm2018.09.0081

Other claims from this paper (1)

Recommendation The authors recommend using the survey ranges to manage nutrients in CBD-hemp stock plants.

Method / resourceauthor interpretationreview summarypositivebasis n/a

Claim · model-written summary

Tissue testing effectively quantifies in-season crop nutrient concentrations.

Taxon: SoybeansGlycine maxt0
Outcome: crop nutrient concentrationse0

Not reportedComparatorValue

Verbatim

e0
“Tissue testing is an effective method for quantifying crop nutrient concentrations in-season”
✓ located verbatim in the source · abstract, characters 0–92

t0
“Soybeans”
✓ located verbatim in the source · title, characters 48–56

Title

Considerations for Successful Tissue Testing in Soybeans

Ortel, Carrie; Reiter, Mark S.; Haymaker, Joseph VTechWorks (Virginia Tech) 2025

Other claims from this paper (3)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilization increased tissue nutrient concentrations.

Taxon: Cannabis sativa L.Cannabis sativat0
Treatment: fertilizatione0
Outcome: Tissue nutrient concentrationse0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Tissue nutrient concentrations increased with fertilization.”
✓ located verbatim in the source · abstract, characters 934–994

t0
“Cannabis sativa L.”
✓ located verbatim in the source · title, characters 12–30

Title

Response of Cannabis sativa L. to Inorganic Fertilization (N, P, K): Biomass, Nutrient Uptake and Cannabinoids Profile

Marianela Simonutti; Gonzalo Berhongaray; Marcos Derita; et al. International Journal of Plant Biology 2025. doi:10.3390/ijpb16030092

Other claims from this paper (10)

Intervention effect Biomass peaked at 5 g N, 2 g P and 3 g K per plant, 41.9% above control.
Observation Fertilized plants had harvest indexes of 31–42%.
Intervention effect Additional reproductive-stage phosphorus and potassium did not enhance inflorescence biomass.
Intervention effect Additional reproductive-stage phosphorus and potassium did not enhance CBD content.
Observation Inflorescence nitrogen and phosphorus levels were maximal at 5 g N and 2 g P per plant.
Observation Leaf potassium accumulated more at 7.5 g K per plant.
Association CBD content progressively increased with nutrient supply.
Association THC percentage progressively decreased with nutrient supply.
Intervention effect High nutrient doses caused nutritional imbalances and plant health issues.
Association Macronutrient extraction differed by treatment.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Typical nutrient-disorder symptoms and critical tissue concentrations in Dahlia are presented.

Taxon: DAHLIADahliat0
Outcome: Typical symptomology of nutrient disorders and critical tissue concentrationse0

Verbatim

e0
“Typical symptomology of nutrient disorders and critical tissue concentrations are presented.”
✓ located verbatim in the source · abstract, characters 987–1079

t0
“DAHLIA”
✓ located verbatim in the source · title, characters 42–48

Title

CHARACTERIZATION OF NUTRIENT DISORDERS OF DAHLIA × HYBRID 'MAXI MORELIA'

J. Barnes; B. Whipker; I. McCall; et al. Acta Horticulturae 2015. doi:10.17660/actahortic.2015.1062.4

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Environmental nutrient levels had significant but weak correlations with tissue nutrient concentrations.

Taxon: Typha latifoliaTypha latifoliat0
Outcome: tissue concentrationse0
Setting: environmentale0

Not reportedDirection

Verbatim

e0
“Correlations between environmental levels of several nutrients and tissue concentrations were significant, but not very strong”
✓ located verbatim in the source · abstract, characters 498–624

t0
“Typha latifolia”
✓ located after whitespace/quote normalisation · title, characters 68–83

Title

Factors Influencing Shoot Production and Mineral Nutrient Levels in Typha Latifolia

Cluade E. Boyd; Lloyd W. Hess Ecology 1970. doi:10.2307/1933667

Other claims from this paper (8)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nutrient concentrations are usually higher in younger tissue.

Taxon: subclovert0
Organ / stage: younger tissuee0
Outcome: concentrationse0
Direction: highere0

Verbatim

e0
“plant part (concentrations are usually higher in younger tissue)”
✓ located verbatim in the source · abstract, characters 540–604

t0
“subclover”
✓ located verbatim in the source · title, characters 33–42

Title

Using DRIS to assay nutrients in subclover.

Jones Mb; Vaughn Ce; Bell Fl California Agriculture 1986

Other claims from this paper (5)

Observation Nitrogen, phosphorus, potassium and sulfur concentrations decrease with plant age.
Observation Nutrient concentrations are often higher in grazed plants.
Observation Nutrient ratios vary less over time and across sampled plant parts than individual concentrations.
Method / resource DRIS makes sampling time and plant part less critical for nutrient assessment.
Intervention effect Correcting a DRIS-indicated sulfur deficiency significantly increased subclover yield per acre.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Differences in squash tissue nutrient concentrations declined during growth.

Taxon: Hybrid squasht0
Outcome: differences in tissue nutrient concentrationse0
Direction: declinede0

Verbatim

e0
“differences in tissue nutrient concentrations declined during growth”
✓ located verbatim in the source · abstract, characters 632–700

t0
“Hybrid squash”
✓ located verbatim in the source · title, characters 0–13

Title

Hybrid squash: Responses to nitrogen, potassium, and phosphorus fertilisers on a soil of moderate fertility

J.G. Buwalda; R.E. Freeman New Zealand Journal of Crop and Horticultural Science 1986. doi:10.1080/03015521.1986.10423049

Other claims from this paper (8)

Intervention effect Nutrient supply strongly affected early squash growth and tissue nutrient concentrations.
Observation Growth differences persisted until squash harvest.
Association Fruit yields reflected differences in early squash growth.
Intervention effect Nitrogen additions up to 160 kg/ha increased squash fruit yield from 29 to 38 t/ha.
Intervention effect Potassium additions up to 320 kg/ha increased squash fruit yield from 25 to 38 t/ha.
Intervention effect Phosphorus additions up to 320 kg/ha increased squash fruit yield from 22 to 45 t/ha.
Association Squash yield differences were mainly attributable to fruit number rather than fruit size.
Observation Harvested squash fruit removed up to 179 kg/ha N.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Seedlings at high salinity had higher tissue nutrient concentrations.

Taxon: Avicennia marinaAvicennia marinat0
Treatment: high salinitiese0
Outcome: Tissue nutrient concentrationse0
Direction: highere0

Not reportedComparator

Verbatim

t0
“Avicennia marina”
✓ located verbatim in the source · title, characters 39–55

e0
“Tissue nutrient concentrations were higher in seedlings grown at high salinities.”
✓ located verbatim in the source · abstract, characters 1119–1200

Title

Differential responses of the mangrove Avicennia marina to salinity and abscisic acid

Ruth Reef; Nele Schmitz; Britt A. Rogers; et al. Functional Plant Biology 2012. doi:10.1071/fp12178

Other claims from this paper (6)

Intervention effect ABA addition reduced sap flow, transpiration and photosynthesis.
Intervention effect ABA addition increased water use efficiency.
Intervention effect ABA addition increased aquaporin expression.
Intervention effect High salinity did not reduce sap flow, transpiration or photosynthesis.
Intervention effect High salinity reduced aquaporin expression.
Observation The authors found no evidence that ABA participates in the mangrove salinity response.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Nutrient disorders in Pericallis were characterized by symptoms and critical tissue concentrations.

Taxon: PERICALLIS × HYBRIDt0
Outcome: Typical symptomology of nutrient disorders and critical tissue concentrationse0

Verbatim

t0
“PERICALLIS × HYBRID”
✓ located verbatim in the source · title, characters 42–61

e0
“Typical symptomology of nutrient disorders and critical tissue concentrations are presented.”
✓ located verbatim in the source · abstract, characters 986–1078

Title

CHARACTERIZATION OF NUTRIENT DISORDERS OF PERICALLIS × HYBRID 'JESTER PURE BLUE'

J. Barnes; B.E. Whipker; I. McCall; et al. Acta Horticulturae 2011. doi:10.17660/actahortic.2011.891.6

Associationobservedoriginal resultmeasured

Claim · model-written summary

Soil or tissue nutrient concentrations had few relationships with chlorosis.

Taxon: Concord Grapet0
Organ / stage: tissuee0
Outcome: few relationships with soil or tissue nutrient concentrationse0

Not reportedDirection

Verbatim

e0
“There were few relationships with soil or tissue nutrient concentrations.”
✓ located verbatim in the source · abstract, characters 1254–1327

t0
“Concord Grape”
✓ located verbatim in the source · title, characters 88–101

Title

High Soil Moisture and Low Soil Temperature Are Associated with Chlorosis Occurrence in Concord Grape

Joan R. Davenport; Robert G. Stevens HortScience 2006. doi:10.21273/hortsci.41.2.418

Other claims from this paper (4)

“Tissue nutrient concentrations”

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