Soil application of pyrolyzed biomass (biochar) has been proposed as an effective strategy for managing degraded land, but its limitations as a sole nutrient supplier discourage its widespread application as a soil amendment. Excessive use of saline water for irrigation leads to buildup of salts and other toxic ions, which cause a decline in the availability of essential nutrients due to negative effects on the mineralization process. Therefore, a long-term incubation experiment was conducted for 52 weeks to study the individual or combined impact of pyrolyzed [biochar derived from rice residue (RB)] and unpyrolyzed organic materials [rice residue (RR) and animal manure (AM)] on nitrogen (N) dynamics in soil irrigated with water of varying electrical conductivity (EC) (EC [non-saline canal water), EC, and EC dS m (saline)]. Increasing salinity had an adverse effect on N mineralization, reducing it by 20-70% during the incubation period. Irrespective of the EC, soil amended with AM showed greater and faster N mineralization than unamended control, while individual application of RB or RR showed immobilization of N during the early period of incubation. However, conjoint application of pyrolyzed (RB) and unpyrolyzed organic materials (RR or AM) showed enhanced mineralized N content (26-96%) compared with the sole biochar-amended soil irrigated with water of different EC levels. It was most likely due to the synergic effect of unpyrolyzed materials on the mineralization rate of biochar. On the other hand, the high cation exchange capacity, large surface area, and greater total porosity of the biochar may cause stronger adsorption of free NH-N released from the labile organic amendments, thereby moderating the N mineralization process under saline conditions. Therefore, it is recommended that biochar be used in conjunction with AM or RR to ensure the prolonged availability of N in a saline environment.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s10661-023-11052-9 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Interface Engineering of Styrenic Polymer Grafted Porous Micro-Silicon/Polyaniline Composite for Enhanced Lithium Storage Anode Materials.
Polymers (Basel)
December 2024
Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnamdaero, Sujeong-Gu, Seongnam-Si 13120, Gyeonggi-do, Republic of Korea.
Si anode materials are promising candidates for next-generation Li-ion batteries (LIBs) because of their high capacities. However, expansion and low conductivity result in rapid performance degradation. Herein, we present a facile one-pot method for pyrolyzing polystyrene sulfonate (PSS) polymers at low temperatures (≤400 °C) to form a thin carbonaceous layer on the silicon surface.
View Article and Find Full Text PDFMesoporous Carbon Composites Containing Carbon Nanostructures: Recent Advances in Synthesis and Applications in Electrochemistry.
Materials (Basel)
December 2024
Department of Organic Chemistry, Medical University of Bialystok, Mickiewicza 2a, 15-222 Bialystok, Poland.
Carbon nanostructures (CNs) are various low-dimensional allotropes of carbon that have attracted much scientific attention due to their interesting physicochemical properties. It was quickly discovered that the properties of CNs can be significantly improved by modifying their surface or synthesizing composites containing CNs. Composites combine two or more materials to create a final material with enhanced properties compared with their initial components.
View Article and Find Full Text PDFEvaluation of Soil Antagonism against the White Root Rot Fungus Rosellinia necatrix and Pathogen Mycosphere Communities in Biochar-amended Soil.
Microbes Environ
December 2024
Institute for Plant Protection, National Agriculture and Food Research Organization (NARO).
White root rot disease caused by Rosellinia necatrix is a growing issue in orchards, and biochar pyrolyzed from the pruned branch residues of fruit trees has potential as a soil amendment agent with a number of benefits, such as long-term carbon sequestration. However, the effects of pruned branch biochar on white root rot disease remain unclear. Therefore, we compared direct antagonism against R.
View Article and Find Full Text PDFElucidation of ammonium and nitrate adsorption mechanisms by water hyacinth biochar: effects of pyrolysis temperature.
Environ Sci Pollut Res Int
December 2024
Graduate School of Science and Engineering, Soka University, Tokyo, 192-8577, Japan.
Numerous studies indicate biochar's nitrogen (N) adsorption capacity plays a crucial role in soil N retention. However, there is limited understanding on inorganic N adsorption mechanisms in biochar derived from aquatic weeds such as water hyacinth (WH). This study investigated ammonium-N (NH-N) and nitrate-N (NO-N) adsorption capacities and mechanisms of WH biochar pyrolyzed at different pyrolysis temperatures of 400 °C, 600 °C, and 800 °C (BC400, BC600, and BC800, respectively).
View Article and Find Full Text PDFCovalent organic framework derived single-atom copper nanozymes for the detection of amyloid-β peptide and study of amyloidogenesis.
Anal Bioanal Chem
December 2024
College of Pharmacy, Key Laboratory of Innovative Drug Development and Evaluation, Hebei Medical University, Shijiazhuang, 050017, China.
Article Synopsis
- The study introduces a new colorimetric assay using single-atom Cu anchored N-doped carbon nanospheres (Cu-NCNSs) for the sensitive detection of amyloid-β (Aβ) monomers, which is key for early Alzheimer's diagnosis.
- The Cu-NCNSs show high peroxidase-like activity and a strong affinity for Aβ, allowing for a detection limit of 1.182 nM, outperforming traditional methods in efficiency and accuracy.
- The system also enables monitoring of Aβ aggregation dynamics and shows greater sensitivity to toxic Aβ oligomers compared to commonly used amyloid dyes, highlighting its potential for early detection and treatment of Alzheimer’s disease.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!