Notably, the highest nitrogen recovery efficiency and ammonium content in soil were observed with a combination of 25 tons per hectare of biochar, chicken manure, and NPK fertilizer.

The findings suggest that straw biochar can serve as a slow-release fertilizer, improving nutrient retention and enhancing soil health.

A recent study evaluated the impact of rice husk biochar on radish growth and nitrogen use efficiency (NUE) through pot experiments with various treatments.

The degradation rate of straw biochar was found to be highest during the first 30 days, with biochar produced at temperatures below 300 °C degrading more rapidly.

Additionally, soil properties such as pH and electrical conductivity (EC) improved with biochar treatments, indicating enhanced soil health.

With approximately 6 billion tons of straw produced globally each year, including about 1 billion tons from China, there is a pressing need for effective straw utilization strategies.

Biochar has been recognized as a promising additive to green roof (GR) substrates, although its application in this context has not been sufficiently studied.

The review highlights the necessity for comprehensive studies on biochar's effects on GRs, addressing barriers such as environmental concerns and economic challenges.

Antimony (Sb) toxicity poses a significant threat to plant growth and productivity globally, leading to decreased chlorophyll and anthocyanin synthesis.

Overall, the review aims to provide a detailed understanding of the benefits of biochar in GRs and promote its adoption for enhanced urban sustainability.

A study investigating the co-application of Chinese milk vetch (CMV) and two types of biochar on rice in Sb-contaminated soil showed promising results.

This co-application significantly increased rice biomass by 29.50% and grain yield by 51.07%, while also reducing Sb accumulation in rice roots and shoots.