Polish Fertilizer Plant (Polskie Zakłady Nawozowe – PZN), based in the Pulawy Science and Technology Park, is a Polish company operating in the field of agricultural and horticultural innovation.

PZN's core activities include research and development of products to support plant cultivation.

PZN is an organization that supports and initiates innovative process and product solutions in agriculture and horticulture. We develop and implement cutting-edge solutions on an industrial scale, aiming to support agriculture and horticulture in areas where productivity is low or economically inefficient. Our work is based on the latest scientific achievements from leading research centers.

Our experts conduct advanced research projects in cooperation with representatives of renowned R&D institutions such as the Institute of Horticulture (Państwowy Instytut Badawczy - PIB - State Research Institute) and the Institute of Soil Science and Plant Cultivation - PIB.
The company undertakes initiatives to introduce modern fertilizers, soil conditioners, and growing media compositions to the Southern European, Arab, and African markets.
Recent R&D projects have enabled the introduction of our flagship product: peat-based substrates with various applications.

The most important of these is a mixture of natural peat with a specialized hydro absorbent (hydrogel).

This substrate contains as much as 90% organic matter with an optimal pH level of 5.5-6.5.

Another research outcome is a peat-based substrate with macroelements such as potassium, magnesium, phosphorus, and nitrogen, and optionally, hydrogel.

These products have also been tested to ensure the effectiveness of the individual components in the presence of ectomycorrhiza and arbuscular mycorrhiza, especially for fungi from the Glomeromycota phylum. Research results have shown that this type of substrate is excellent for cultivating legumes such as chickpeas, peas, beans, alfalfa, and soybeans.

The mixtures increase the water permeability coefficient, leading to faster wetting of the lower soil layers and, consequently, providing water to plant roots.

The components of the substrates and their proportions have been selected to meet the most demanding cultivation conditions, especially in areas with significant water shortages.