GRIN HAS (MAROK CALFOMIT, MEDJIK R STAR, VIREER) – mineral fertilizer used to enhance the growth and development of cereal, legume, and technical crops. It contains nitrogen, phosphorus, and some microelements that promote overall plant health and increase productivity. The preparation is manufactured in liquid form, allowing easy application via irrigation or other methods. The product is produced by GREEN HAS ITALIA S.p.A., located in Italy. It has a registration certificate obtained on 05.03.2019 under number 12083. This fertilizer is intended for use in large-scale agriculture, where it is necessary to ensure a balance of microelements and primary nutrients. The preparation contains nitrogen at 3% and phosphorus in the range of 18-27%. In addition, it includes microelements such as boron, iron, calcium, magnesium, molybdenum, and zinc. This enables not only to provide plants with primary nutrients, but also to improve their overall resistance to diseases and adverse conditions.