Synergistic effect of a phosphate-solubilizing fungus and an arbuscular mycorrhizal fungus on leucaena seedlings in an Oxisol fertilized with rock phosphate
Why this work is in the frame
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Bibliographic record
Abstract
A greenhouse experiment was conducted to determine the effects of a phosphate-solubilizing fungus (Mortierella sp.) and an arbuscular mycorrhizal fungus (Glomus fistulosum (Skou and Jakobsen)) in enhancing plant Pi uptake and growth of Leucaena leucocephala (Lam.) grown in an Oxisol fertilized with graded amounts of rock phosphate (RP). For this purpose, a surface soil sample was fertilized with four levels of the Huila RP (P = 0, 150, 300, and 600 mg·kg −1 ) and inoculated with none, one, or both fungi. In the unfertilized soil, leucaena plants grew poorly and there was no plant response to individual or dual inoculation. When RP was added G. fistulosum significantly increased plant Pi uptake and growth, the effect of inoculation was significantly higher at the P levels of 300–600 mg·kg −1 . Mortierella sp. was highly effective in increasing plant P uptake and growth of mycorrhizal leucaena, but it was ineffective in nonmycorrhizal leucaena across the RP gradient. The synergistic effects of dual inoculation were more evident on plant Pi uptake than on growth. The results indicate that the phosphate-solubilizing fungus effect was limited by soil Pi sorption. This limitation likely was overcome by the mycorrhizal association, which allowed a more efficient capture of the Pi released due to RP dissolution.
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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) | 0.001 | 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 it