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Record W1973135372 · doi:10.5539/jas.v2n2p73

Sp-method: A Quantified Ecological Approach for Assessing Potential

2010· article· en· W1973135372 on OpenAlexvenueno aff
Lu Bu, Yang Jin-zhong, Hao Jian-ping, Zhou DianXi, Wang Shuan

Bibliographic record

VenueJournal of Agricultural Science · 2010
Typearticle
Languageen
FieldEnvironmental Science
TopicSustainable Agricultural Systems Analysis
Canadian institutionsnot available
FundersChina Agricultural University
KeywordsYield (engineering)Crop managementField (mathematics)CropCrop yieldEcologyAgricultural engineeringComputer scienceEnvironmental scienceMathematicsEngineeringBiologyMaterials science

Abstract

fetched live from OpenAlex

Understanding crop yield formation is important for agronomists to make a contribution to improved cropmanagement. An analytical procedure, referred to here as Sp-method, is presented as a way to evaluatealternative ways to achieve yield advances, based on ecological theory and using regression techniques. Therationale of Sp-method is that the crop yield is the result of genetic potential performance under ecologicalpressure within field environments. Yield and its components are expressed as mathematical equationsrepresenting interacting ecological and management factors. Partial differentials of yield components andgradients for the factors assessed reveal which management tactics can best be exploited for higher crop yield.The application of this routine is illustrated with two examples, and some directions are pointed out for betterapplying and improving this method.

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)0.004
metaresearch head score (Gemma)0.006
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.005
Threshold uncertainty score0.019

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0040.006
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0050.003
Science and technology studies0.0010.001
Scholarly communication0.0020.002
Open science0.0020.002
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0050.001

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 head0.013
GPT teacher head0.273
Teacher spread0.259 · 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 designTheoretical or conceptual
Domainnot available
GenreMethods

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

Citations5
Published2010
Admission routes1
Has abstractyes

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