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Record W7009297973

Effect of natural media amendments on crop quality under controlled environmental conditions

2023· dissertation· en· W7009297973 on OpenAlexaboutno aff

Bibliographic record

VenueMemorial University Research Repository (Memorial University) · 2023
Typedissertation
Languageen
FieldEnvironmental Science
TopicAgriculture Sustainability and Environmental Impact
Canadian institutionsnot available
Fundersnot available
KeywordsAmendmentSoil typeSoil waterGreenhouseCropSoil conditionerBiochar
DOInot available

Abstract

fetched live from OpenAlex

The effect of different natural media amendments on the physical, chemical, and biological properties of soil is well studied and documented. Although there is more information on changes in soil parameters, few studies have demonstrated effects on crop quality. Herein, a greenhouse study was set up to identify the effect of wood ash (WA), paper sludge (SL), biochar (BC), and its combinations on kale’s nutritional profile grown in two different soil types (soil type 1, soil type 2) in Newfoundland, Canada. Pathway analysis revealed that although the same media amendments were used, the kale quality parameters were significantly altered by the grown soil type. It was shown that for soil type 2, most of the parameters were significantly enhanced compared to CTL (control) (p<0.05). For soil type 1, upon the addition of WA, SL, and BC there was a significant increase in the marketable yield; however, the crop’s nutritional parameters were not significantly changed. The lipidomics results showed that for soil type 1, WSBC (wood ash+sludge+biochar) amendment appeared to be effective in enhancing the functional lipids of 1,2 DGs, 1,3 DGs, ω6 lipids, and phospholipids. Whereas in kale grown in soil type 2, most of the studied functional lipids were increased upon the addition of SL and WBC (wood ash+biochar) media amendment. This different impact of media amendments on soils was also suggested from the pathway analysis revealing significantly different (p<0.05) lipid pathways associated with each soil type. In conclusion, WA, SL, and BC and the combination amendments showed a positive effect on kale’s nutritional profile, and this approach can be used to produce functional foods in controlled environmental conditions.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.007
Threshold uncertainty score0.015

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.285
Teacher spread0.271 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2023
Admission routes1
Has abstractyes

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