ArticleBMC plant biology2025
Early growth and C-N-P stoichiometric responses of Ochroma lagopus to combined application of nitrogen fertilizer and biochar.
Article in BMC plant biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Nitrogen metabolic characteristics and adaptive mechanisms of Paracoccus sp. QD-21 under complex nitrogenous environments.Biodegradation · 2026Article
- Nitrogen metabolic characteristics and adaptive mechanisms of Paracoccus sp. QD-21 under complex nitrogenous environments.Biodegradation · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
Ochroma lagopus, the world's lightest commercially available timber species, is generally nitrogen-limited during growth. While nitrogen application is a common practice to enhance productivity in plantation forests, low nitrogen fertilizer use efficiency often exacerbates phosphorus limitation and poses environmental risks. Biochar, as a soil amendment, can improve nitrogen use efficiency. This study investigated the effects of nitrogen fertilization and biochar application on the growth and biochar (C), nitrogen (N), and phosphorus (P) stoichiometric characteristics of one-year-old O. lagopus trees. Seven treatments were established: no fertilization (CK), and single N application at low (N1), medium (N2), and high (N3) levels, along with corresponding biochar combined application treatments (BN1, BN2, BN3). Results indicate that although N fertilizer alone promotes tree height and diameter at breast height growth (N3 increased by 35.06% and 29.02% compared to CK), high N levels did not yield significant additional benefits. The combined nitrogen-charcoal application BN2 (1000 g biochar + 540 g urea per tree) yielded the optimal effect, with tree height and diameter increments significantly exceeding CK by 51.62% and 46.88%, respectively. Applying N fertilizer alone resulted in decreased leaf P content and elevated N/P ratios (>16), indicating P became the limiting factor. Combined application of biochar restored P content across organs and normalized N/P ratios (BN1 treatment maintained N/P between 14 and 16), effectively alleviating P limitation. O. lagopus optimizes nutrient allocation strategies by enhancing root C, N, and P content and phenotypic plasticity, thereby improving overall utilization efficiency. Principal component analysis indicates that the BN2 treatment received the highest overall evaluation, demonstrating the most optimal fertilization effect. Therefore, it is recommended to apply biochar at medium to high N levels to alleviate P limitation, maintain elemental balance, and enhance productivity in O. lagopus plantations.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.