Natalli LH, Hillig E, Lombardi KC, Godinho M,
Nuñez RP. Use of biocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More as a component of substrates in horticulture and forestry: A
review. Rev Bras Cienc Solo. 2024;48:e0240027.
https://doi.org/10.36783/18069657rbcs20240027

Biochar, a carbon-rich material derived from the thermal processing of organic residues, is emerging as a sustainable alternative in plant nursery substrates. Traditionally, substrates like peat dominate horticulture and forestry due to their excellent physical and chemical properties. However, concerns about peat’s environmental impact have driven research into alternatives like biochar.

Biochar can be made from diverse organic feedstocks, including agricultural waste and forestry by-products. When incorporated into substrates, biochar improves water retention, porosityPorosity of biochar is a key factor in its effectiveness as a soil amendment and its ability to retain water and nutrients. Biochar’s porosity is influenced by feedstock type and pyrolysis temperature, and it plays a crucial role in microbial activity and overall soil health. Biochar More, and nutrient availability. Studies have shown its ability to support plant growth, increase seedling quality, and enhance environmental sustainability by reducing the need for peat and other non-renewable resources.

Horticultural applications typically benefit from low biochar concentrations (around 10%), which enhance seedling growth and soil fertility. Forestry substrates often use higher concentrations (20–30%) to optimize properties like aeration and nutrient retention. Despite its potential, biochar’s effectiveness varies by feedstockFeedstock refers to the raw organic material used to produce biochar. This can include a wide range of materials, such as wood chips, agricultural residues, and animal manure. More, production method, and application rate. Excessive use may lead to nutrient imbalances or adverse chemical interactions.

Research highlights the importance of tailoring biochar production and application to specific plant and soil needs. Addressing issues like cost, feedstock variability, and production scalability is critical to fully realizing biochar’s potential in nursery systems.

As demand for sustainable practices grows, biochar offers a promising pathway for enhancing substrate performance while reducing environmental impact. With further study, it could significantly contribute to greener horticulture and forestry industries.