Effect of tillage system and eco-regional field location cluster on the emergence periodicity of wild oat and green foxtail
Bibliographic record
Abstract
Knowing the emergence periodicities of individual weed species and how tillage and eco-regional field location cluster affects them can assist producers in more accurately timing control methods. Emergence periodicities of wild oat ('Avena fatua' L.) and green foxtail (' Setaria viridis' L. Beauv.) were measured in 1999 and 2000. The survey examined 34 fields, which were under conventional- or zero-tillage. The fields were grouped into 4 eco-regional field location clusters based on field proximity to each other, soil type, soil moisture deficit and environmental conditions. Seedling emergence was tracked in the post-seeding (1999 and 2000) and pre- and post-seeding (2000) periods. Determination of the variation of emergence periodicities in different weed species due to tillage system and eco-regional field location clusters effects is the first step in developing predictive emergence models. Simple environmental conditions such as air temperature and precipitation can be used to assist producers in determining more optimal timing for weed control or crop scouting. (Abstract shortened by UMI.)
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".