Hyperspectral Image Data and Waveband Indexing Methods to Estimate Nutrient Concentration on Lettuce (

Sulaymon Eshkabilov, John Stenger, Elizabeth N Knutson, Erdem Küçüktopcu, Halis Simsek, Chiwon W Lee

Open access · goldAbstract read

In one paragraph

Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it

0cells of the map it votes in

1citing papers in PubMed

2.5field-weighted citation impact, top 11% of its field

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 12 citations in OpenAlex.

KG-FT-Transformer: a knowledge-guided feature tokenizer transformer for hyperspectral prediction of lettuce quality trait and fingerprint analysis.Food chemistry: X · 2026
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Sulaymon EshkabilovDepartment of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND 58108, USA.ORCID 0000-0002-7266-2201

John StengerDepartment of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND 58108, USA.

Elizabeth N KnutsonDepartment of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.

Erdem KüçüktopcuDepartment of Agricultural Structures and Irrigation, Ondokuz Mayıs University, Samsun 55139, Turkey.ORCID 0000-0002-8708-2306

Halis SimsekDepartment of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA.ORCID 0000-0001-9031-5142

Chiwon W LeeDepartment of Plant Sciences, North Dakota State University, Fargo, ND 58108, USA.

North Dakota State University · USOndokuz Mayıs University · TRPurdue University West Lafayette · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lettuce is an important vegetable in the human diet and is commonly consumed for salad. It is a source of vitamin A, which plays a vital role in human health. Improvements in lettuce production will be needed to ensure a stable and economically available supply in the future. The influence of nitrogen (N), phosphorus (P), and potassium (K) compounds on the growth dynamics of four hydroponically grown lettuce (

Indexed as

LactucaPlant LeavesHumansNitrogenNutrientsVegetablesNitrogenNutrientshydroponic culturehyper-spectral imaginglettucenutrient levelpartial least squares regressionreflectancespectral index

Identifiers

PMID36365856

DOI10.3390/s22218158

PMCPMC9657853

OpenAlexW4307548217

What OpenQuestion holds

Textmetadata

LicenceCC BY

Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.