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Record W2150798381 · doi:10.13031/2013.32168

Assessment of Rootzone Water Redistribution in Corn Following Irrigation

2010· article· en· W2150798381 on OpenAlexaboutno aff
Marcos R. C. Cordeiro, Sanjayan Satchithanantham, Ramanathan Sri Ranjan

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEnvironmental Science
TopicSoil Moisture and Remote Sensing
Canadian institutionsnot available
Fundersnot available
KeywordsIrrigationHydrology (agriculture)Water contentSoil waterEnvironmental scienceDrainageSalinityGeologySoil scienceAgronomyGeotechnical engineering

Abstract

fetched live from OpenAlex

An understanding of the water redistribution pattern within the corn rootzone will help design better irrigation and drainage systems. The objective of this research was to use time-domain reflectometry (TDR) miniprobes to measure water content within the rootzone of corn at different locations within the rootzone as a function of time. Forty-five TDR miniprobes were installed, in three vertical planes, for measuring volumetric water content and salinity within the rootzone of a corn field located in Winkler, Manitoba. The probes were inserted at 0.1, 0.2, 0.4, 0.6, and 0.8 m depths from the ground surface and at 0.12, 0.24, and 0.36 m radial distances from the base of the corn plant. The soil was thoroughly wetted by applying 50 mm of water within the experimental site. The volumetric water content was measured before and at periodic intervals after the irrigation event. The evening following the irrigation event showed an increase in water content within the entire soil profile. The water content started to decline as the days progressed. However, during the mornings, the soil within the root zone seemed to show an increase in water content when compared to the previous afternoon. An examination of the water content distribution within the root zone indicated an upward migration of water from soil layers located below 0.8 m.

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)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.005
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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 head0.005
GPT teacher head0.242
Teacher spread0.237 · 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 designObservational
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
Published2010
Admission routes1
Has abstractyes

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