Assessing Potential Environmental Impacts of Soil Phosphorus by Soil Testing
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
Sufficient supply of phosphorus (P) to agricultural crops is essential to optimize production and farm income. This chapter focuses on the concentration of P in the soil measured as soil test P (STP). Once the environmental threshold STP is reached, stricter management of P applications comes into effect. STP is not the same as total P, and various soil testing methods have been developed to measure or estimate the fraction of total P that is important for either plant availability, potential environmental impact or both. The chapter discusses the most appropriate soil testing methods and interpretations. As soil sampling recommendations were developed for assessing crop requirements, it is possible that separate soil sampling strategies may be required for environmental soil testing. Several researchers showed that nonconventional soil tests, which are often thought of as environmental soil tests, are only slightly better than conventional soil tests for predicting P losses through surface and subsurface pathways.
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.
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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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.
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