Bibliographic record
Abstract
Close to 80% of dry beans in western Canada are grown in southern Manitoba. A need was identified to develop soil-testing criteria based on local conditions as well as derive an optimum fertilizer rate to alleviate Zn deficiency. Two experiments with a number of dry bean (Phaseolus vulgaris L.) cultivars were carried out between 2000 and 2002 at a number of locations in Manitoba. Each experiment included two trials per year. The first experiment consisted of two foliar application rates of Zn (0 and 0.33 kg ha -1 ) as main plots and five rates of broadcast and incorporated soil Zn (0, 2.8, 5.6, 8.4 and 11.2 kg Zn ha -1 ) as sub-plots. The second experiment also included two rates of foliar Zn (0 and 0.33 kg Zn ha -1 ) as the main plots; however, sub-plots included a control and four Zn products that were broadcast and incorporated at a rate of 5.6 kg Zn ha -1 . Soil DTPA-extractable Zn levels varied from 0.38 to 1.14 mg Zn kg -1 soil. Soil Zn applications resulted in a significant increase of Zn in plant tissue levels at 1/10 bloom growth stage, however, actual levels varied, thus, suggesting that a plant tissue critical level will have to be derived separately for each cultivar. Significant seed yield responses were obtained only when DTPA-Zn levels were equal to, or less than, 0.5 mg Zn kg -1 . Optimum yields at responsive sites were obtained with 5 kg Zn ha -1 broadcast and incorporated. All products used (Zn mono- and heptasulphate or oxysulphate) performed equally well, except in one case when ZnSO 4 .H 2 O exhibited superior performance. Foliar application of a sulphonic acid based Zn product was not always as effective as soil applied Zn products. Key words: Dry bean, Phaseolus vulgaris L., DTPA extraction, foliar, soil, Zn products
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.000 | 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 teacher head, 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".