Effects of Phosphorus Additions on Growth, Mineral Nutrition, and Gas Exchange of Red Alder (Alnus rubra) Seedlings Grown in Outdoor Sandbeds
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Abstract The growth of young red alder on Vancouver Island may increase with phosphorus (P) availability. In order to better interpret growth responses in field fertilization trials, this study examined the effects of P additions (10, 100, 200, or 400 kg P/ha) on the growth and nutrient uptake of red alder seedlings grown in outdoor sandbeds for one growing season. Height did not increase with P supply. Stem growth and whole-plant mass increased with P rate from 10 to 100 kg/ha, but did not increase further at greater rates of P addition. Stem volumes, averaged across the P100, P200 and P400 treatments, were 37% greater than in the P10 treatment. Volume and mass did not increase as foliar P concentrations exceeded 2.2 g P/kg. These responses were consistent with data from field trials. Reduced growth in the P10 treatment was not accompanied by significantly reduced foliar P concentrations. Increases in stem volume with P supply were associated with increases in the amount of branching and foliage borne on branches but not with shifts in allocation of dry matter from roots to shoots. West. J. Appl. For. 17(4):209–215.
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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 | 0.000 | 0.000 |
| 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) | 0.000 | 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 it