Molybdenum‐induced effects on nitrogen uptake efficiency and recovery in wheat (<i>Triticum aestivum</i>L.) using<sup>15</sup>N‐labeled nitrogen with different N forms and rates
Bibliographic record
Abstract
Abstract Background : Molybdenum (Mo) is an essential microelement for higher plants and plays a significant role in nitrogen (N) metabolism, which includes nitrate reduction, assimilation, and efficient N acquisition. Its deficiency in soil may induce the reduction of N uptake and wheat yield. Aims : We aimed to explore the Mo‐induced effects on N uptake efficiency and recovery in Mo‐inefficient winter wheat cultivar using a 15 N isotope tracer under different N forms (Nf) and N rates (Nr). Methods : The experiment was conducted in greenhouse conditions, and the treatments included three Nf in the form of 15 NH 4 Cl as sole NH 4 + , Ca ( 15 NO 3 ) 2 as sole NO 3 − , and 15 NH 4 15 NO 3 ) under two Nr [low (L) 0.05 and high (H) 0.25 g N kg –1 soil], with (+Mo) in form of [(NH 4 ) 6 Mo 7 O 24 ∙ 4H 2 O] and without (–Mo) Mo application. The plant biomass, Mo content, total N uptake, fertilizer 15 N uptake, soil N uptake, as well as N uptake, agronomic and physiological efficiency were evaluated. Furthermore, the fertilizer 15 N recovery in various wheat organs was also studied. Results : The results revealed that Mo application increased N uptake efficiency in wheat to 38.26%, 68.24%, and 71.53% when the plants are treated with low rates of NH 4 + , NO 3 − , and NH 4 NO 3 , respectively. While at a high N rate, N uptake efficiency increases to 46.26% and 45.34% in the case of NO 3 − and NH 4 NO 3 treatments, respectively, and it was slightly reduced to 10.84% when plants were supplied with NH 4 + form. Mo supply increased 15 N recovery from fertilizer in grain organ under low N rate with all supplied Nf, that is, NH 4 + , NO 3 − , and NH 4 NO 3 , while at high N rate, Mo enhanced 15 N recovery in grains organ in case of NO 3 − and NH 4 NO 3 forms. Conclusion : This study shows that Mo fertilization may be a promising strategy to improve N uptake efficiency and recovery in wheat when nitrate is the main N form.
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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".