Why this issue is critical
Intensive agriculture with the active use of pesticides, fertilizers, herbicides and frequent mechanical interventions leads to soil degradation. The consequences include depletion of fertility, accumulation of toxic residues, destruction of structure and reduction of activity of soil microbiota.
In Ukraine, the situation is complicated by the military factor, including explosive residues, heavy metals, fuels and lubricants and destruction of natural systems have created unique challenges for agriculture.
Against this background, bioremediation becomes one of the main restoration tools, as it works gently, environmentally friendly and with long-term results.
FAO – Soil degradation: https://www.fao.org/soils-portal
UNEP – Pesticide impacts: https://www.unep.org/resources
What is bioremediation and how does it work?
Bioremediation is a set of methods for cleaning and restoring soils using living organisms: plants, bacteria, fungi and microbial consortia. It not only neutralizes pollution, but also triggers natural self-healing processes. Unlike chemical remediation, bioremediation does not create secondary toxins or destroy soil structure. This makes it a key tool for the transition from intensive chemical agriculture to regenerative and organic practices.
NIH – Fundamentals of bioremediation
Main areas of bioremediation
Phytoremediation (hyperaccumulator plants)
Plants are able to absorb or transform toxins into less harmful forms. Sunflowers, rapeseed, mustard, lupine, as well as willow and poplar are used to remove heavy metals, nitrates and chemical pollutants. Their root system improves soil structure and reduces erosion, making the method effective and cost-effective.
ScienceDirect – Phytoremediation overview
Microbiological degradation
Soil bacteria and fungi, such as Bacillus, Pseudomonas, Rhodococcus, are capable of breaking down petroleum products, pesticides, explosives and other organic contaminants.
Managing microbial activity can accelerate soil purification and restore the symbiotic processes necessary for plant growth. It is important to support them with compost, organic matter or biochar.
NIH – Microbial degradation mechanisms
Biochar and biodegradation
Biochar forms a stable structure that retains water, adsorbs toxic substances and serves as a medium for the development of beneficial microbiota. It increases the content of organic carbon, promotes the restoration of humus and can increase productivity in severely depleted soils. When combined with compost, green manure or microbial preparations, biochar becomes a powerful tool for regenerative agriculture.
International Biochar Initiative
Real cases and scientific and practical experience
🌱 1. Phytoremediation of lands contaminated with heavy metals
Ukrainian research in 2024 showed that sunflower, mustard and rapeseed are able to remove lead, cadmium, zinc and explosive residues from affected agricultural landscapes.
After one or two seasons, the toxicity level decreases and the physicochemical properties of the soil improve. This allows farmers to safely return to growing crops.
https://agrarian-innovations.izpr.ks.ua
🧪 2. Microbiological degradation of organic pollutants
Pseudomonas and Rhodococcus bacteria have been shown to break down diesel fuel, lubricants, and organochlorine pesticides. The method is particularly effective on land that has been exposed to chemical stress for a long time. It allows preparing the area for the transition to organic technologies.
♻️ 3. Biochar and regenerative agriculture
The experience of Ukrainian and European farms demonstrates that the introduction of biochar increases the activity of microbiota, improves water retention and reduces acidity, creating conditions for the rapid restoration of degraded soils.
Farmers manage to increase the germination energy and crop yield even on complex soils.
4. Example of using biochar as part of the GREENODIN BLACK complex fertilizer
One of the most interesting practical examples of the combination of bioremediation and agrobiotechnologies is the GREENODIN BLACK fertilizer, in which biochar is enriched with a consortium of beneficial soil microorganisms BTU. Biochar creates a structural framework that retains water and provides a stable environment for microbiota, and microorganisms, in turn, enhance the availability of nutrients.
In experiments on soybeans, the fertilizer showed a significant improvement in growth and physiological parameters compared to the base fertilizer:
- plant height: +5%
- gross above ground mass: +3%
- root mass: +17%
- number of nodules: +24%
- total plant mass: +117%
These data indicate that the combination of biochar with microbial complexes not only supports soil purification, but also significantly improves crop productivity by optimizing nitrogen fixation and improving root architectonics. GREENODIN BLACK is an example of how bioremediation technologies can be integrated into conventional agronomic processes and provide a competitive advantage to the farmer.
Challenges and limitations of bioremediation
- The cleansing period often lasts from several months to several years.
- Some contaminants require combined solutions—biological, physicochemical, and mechanical.
- Success depends on proper diagnostics: determining the contamination, the depth of the problem, and the state of the soil biota.
- Monitoring is necessary at every stage — before the start of work, during and after restoration.
EPA Soil Remediation Guide: https://www.epa.gov/brownfields
How to apply bioremediation in practice
- Conduct soil diagnostics – chemical composition, pesticide residues, heavy metals, organic carbon, microbial profile.
- Choose methods according to the type of pollution: phytoremediation, microbiology, biochar, green manure.
- Add organic materials — compost, mulch, vermicompost, biochar — to trigger natural regeneration processes.
- Reduce mechanical tillage and switch to no-till/minimum-till so as not to destroy newly created ecosystems.
- Implement monitoring — soil analysis every 3–6 months.
- Gradually switch to organic farming: bioprotection, green manures, crop rotation.
Bioremediation is a way to bring life back to the soil, restore its biological function, and ensure the ecological and economic sustainability of agricultural production. It allows for a transition from depleting agriculture to regenerative agriculture, which is especially important for Ukraine in the face of modern challenges.
The combination of natural processes — phytoremediation, microbial degradation, and biochar — forms the foundation for the future of organic and regenerative agriculture.
Additional useful sources and links