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COLDry Fertiliser
Delivering Economically and Environmentally Sustainable Soil Health Solutions
We previously examined the challenges facing the world's ambitious 2050 net-zero decarbonisation target.
Today, we examine how our COLDry process can help address this challenge in the agricultural sector.
The agricultural sector is at a critical juncture, facing unprecedented challenges that demand innovative solutions. As global populations are projected to rise by another 2 billion by 2050, the pressure on our food systems will only intensify. Farmers worldwide are contending with the rising costs of conventional fertilisers, declining sustainability, reduced soil carbon content, and the pervasive effects of climate change.
In Australia, where soils are notoriously nutrient-poor and heavily weathered, these challenges are even more pronounced. Decades of over-reliance on synthetic fertilisers, coupled with extensive land clearing, have led to issues like erosion, salinity, and acidity. The need for a more sustainable approach to agriculture has never been more urgent.
In response to this growing crisis, we have partnered with ESG Agriculture to offer a groundbreaking solution: a lignite-nitrogen fertiliser that is both economically viable and environmentally sensible.
The Synthetic Fertiliser Challenge
Conventional nitrogen fertilisers, while effective in boosting crop yields, come with a host of drawbacks that threaten both the environment and the economy:
- Low Nitrogen Efficiency:
Typically, only 30-50% of applied nitrogen is actually absorbed by plants. The remainder is lost to the environment, leading to inefficiencies and higher costs for farmers. - Environmental Impact:
Nitrogenous emissions are a major contributor to climate change, with a global warming potential 300 times that of CO2. Additionally, fertiliser runoff causes algal blooms in water bodies, depleting oxygen and harming aquatic life. - Economic Burden:
The inefficiency of synthetic fertilisers forces farmers to use more to achieve the desired yield, driving up costs. This financial strain is exacerbated by fluctuating fertiliser prices, making it increasingly difficult for farmers to manage their budgets. - Regulatory and Social Pressure:
With growing consumer demand for sustainable farming practices and stricter regulations aimed at reducing environmental impact, farmers are under more pressure than ever to adopt greener practices.
The Lignite-Nitrogen Fertiliser Solution
Blending nitrogen fertiliser with lignite presents a proven alternative that addresses many of the issues associated with conventional fertilisers. The benefits of this lignite-nitrogen blend are substantial:
- Reduced Emissions:
Studies have shown that this blend results in 64% less NOx emissions, 73% less ammonia, and 59% less nitrogen leaching compared to conventional fertilisers. - Increased Crop Yield:
Crops treated with the lignite-nitrogen blend exhibit a 23% higher yield, accompanied by a 21% increase in nitrogen uptake by the plants. - Long-Term Soil Health:
This fertiliser blend not only delivers nutrients but also contributes to long-term soil health by storing carbon, preserving nutrients, stabilising pH, and supporting microbial activity. - Cost-Effectiveness:
Farmers can achieve the same fertilising effect with less synthetic fertiliser, leading to significant cost savings.
Overcoming Manufacturing Challenges
Despite its obvious advantages, the commercial rollout of lignite-nitrogen fertiliser has faced significant manufacturing challenges, particularly in blending and drying the materials:
- Blending:
The divergent properties of lignite and nitrogen fertilisers have made blending difficult. However, the COLDry process has successfully overcome this challenge by producing a uniform mixture that maintains the efficacy of both components. - Drying:
Traditional high-temperature drying methods are expensive, energy-intensive, and can reduce the effectiveness of nitrogen fertilisers by causing them to break down. The COLDry process, on the other hand, uses low-temperature waste heat to dry the mixture, minimising emissions and preserving the fertiliser’s effectiveness.
ISO-accredited laboratory HRL Technology has confirmed the successful blending of lignite and nitrogen, with less than 1% nitrogen loss during the process—a testament to the effectiveness of the COLDry method.
Long-Term Advantages of COLDry-Nitrogen Fertiliser
The COLDry-nitrogen fertiliser offers several long-term advantages that make it an attractive option for farmers:
- Slow Release:
This fertiliser releases nitrogen slowly, ensuring that plants can absorb it more effectively over time. - Lower Emissions:
The slow-release nature of this fertiliser also results in lower nitrogen emissions, reducing the environmental impact. - Time and Effort Savings:
With its long-lasting effects, this fertiliser reduces the need for frequent applications, saving farmers time and effort. - Soil Enhancement:
In addition to its fertilising properties, this blend enhances soil quality by adding 365kg of carbon per tonne of product, preserving nutrients, stabilising pH levels, and supporting microbial life. - Cost-Effective:
The combination of higher efficacy, competitive pricing, and long-term soil benefits makes this fertiliser a cost-effective choice for farmers looking to maximise their yields while minimising environmental impact.
The COLDry Process Advantage
The COLDry process enables the blending, drying, and granulation of lignite-nitrogen fertiliser in a low-cost, low-risk, and net-zero manner. By utilising low-temperature waste heat, this process not only reduces costs but also minimises environmental impact. Its international applicability makes it a scalable solution for farmers worldwide.
Looking Ahead: Feeding the World - why nitrogen fertiliser matters
As we continue to explore sustainable solutions in this series, our next article will focus on the role synthetic nitrogen fertilisers have played in delivering a world of unprecedented nutritional abundance.