OOIR: Observatory of International Research

Papers

(The TQCC of Biochar is 46. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-05-01 to 2025-05-01.)

Article	Citations
Poultry litter biochar application in combination with chemical fertilizer and Azolla green manure improves rice grain yield and nitrogen use efficiency in paddy soil	497
Characterization of biochars from woody agricultural wastes and sorption behavior comparison of cadmium and atrazine	432
Seven years of biochar amendment has a negligible effect on soil available P and a progressive effect on organic C in paddy soils	283
Silicate minerals control the potential uses of phosphorus-laden mineral-engineered biochar as phosphorus fertilizers	219
Predicting the effect of dissolved humic acid on sorption of benzotriazole to biochar	198
Wood waste biochar promoted anaerobic digestion of food waste: focusing on the characteristics of biochar and microbial community analysis	185
Nitrogen-doped biochars as adsorbents for mitigation of heavy metals and organics from water: a review	174
Biochar granulation reduces substrate erosion on green roofs	146
Sorption kinetics of 1,3,5-trinitrobenzene to biochars produced at various temperatures	143
Bio-oil and biochar production using thermal and catalytic pyrolysis of low-value waste neem seeds over low-cost catalysts: effects of operating conditions on product yields and studies of physicochem	104
Post-processing of biochars to enhance plant growth responses: a review and meta-analysis	98
Weak-acid biochar catalyst prepared from mechanochemically-activated biomass and humic acid for production of 5-hydroxymethylfurfural	97
Development of a new hydrophobic magnetic biochar for removing oil spills on the water surface	92
Impact of biochar amendment on soil aggregation varied with incubation duration and biochar pyrolysis temperature	89
Nutrient alterations following biochar application to a Cd-contaminated solution and soil	87
Effect of invasive weed biochar amendment on soil enzymatic activity and respiration of coal mine spoil: a laboratory experiment study	82
Simultaneous dissipation of trichloroethene and arsenic from co-contaminated groundwater by coupling biodechlorination and biodetoxification with assistance of biochar	70
Effects of different C/N ratios on the maturity and microbial quantity of composting with sesame meal and rice straw biochar	67
Insights on mechanisms of aluminum phytotoxicity mitigation by canola straw biochars from different regions	63
The stability of carbon from a maize-derived hydrochar as a function of fractionation and hydrothermal carbonization temperature in a Podzol	59
Challenges of organic pollutant photocatalysis by biochar-based catalysts	58
Exploring long-term effects of biochar on mitigating methane emissions from paddy soil: a review	56
A critical review of biochar-based nitrogen fertilizers and their effects on crop production and the environment	51
Method to characterize color of biochar and its prediction with biochar yield as model property	50
Formable porous biochar loaded with La-Fe(hydr)oxides/montmorillonite for efficient removal of phosphorus in wastewater: process and mechanisms	48

Physicochemical and adsorption properties of biochar from biomass-based pyrolytic polygeneration: effects of biomass species and temperature	46
Synchrotron X-ray microtomography and multifractal analysis for the characterization of pore structure and distribution in softwood pellet biochar	46
A nanoscale observation to explain the discrepancy of electron exchange capacities between biochar containing comparable surface redox-active moieties	46