Increasing the efficiency of humic acid fertilizers with modern polymer technology in calcareous soils of Iran

Calcareous soils, which constitute a major part of Iran's agricultural lands, pose significant challenges to agriculture due to their limited availability of nutrients. In this regard, researchers are looking for environmentally friendly methods to improve the quantity and quality of agricultural products in these types of soils. One of the key issues in the use of fertilizers, whether mineral or organic, is the phenomenon of leaching, which leads to the leaching of nutrients and their removal from the reach of plant roots.

The solubility of fertilizers plays a decisive role in the severity of leaching; highly soluble fertilizers are rapidly leached and removed from the biological activity zone of the roots. This not only reduces the plant's access to nutrients, but also increases the risk of groundwater contamination. In contrast, fertilizers that leach at a slower rate provide more opportunity for plant absorption and reduce the risk of environmental pollution.

Fertilizers containing humic acid, due to their high solubility in water, often face the problem of leaching, which reduces their effectiveness for target plants. In an innovative patented invention, this limitation has been overcome by introducing polymeric humic acid technology. This unique technology, for the first time in the world, increases the organic matter content of the fertilizer by two to three times that of conventional fertilizers and is especially suitable for soils poor in organic matter in Iran.

By gradually releasing the active ingredient in the soil, in accordance with soil conditions and microbial activity, this technology not only improves the efficiency of the fertilizer, but also significantly reduces the leaching rate. This invention has been approved in terms of innovation, innovative step and industrial applicability and has been introduced as an effective solution for promoting sustainable agriculture in calcareous soils.

This scientific achievement is an important step towards increasing agricultural productivity and protecting the environment in Iran and can be a model for developing similar technologies in other regions with similar soil conditions.