Trade name: POLCALC Magnez PLUS
Synonym: Carbonate-magnesium fertilizer lime granulated
Chemical name: Magnesium carbonate
PPOLCALC Magnesium PLUS is a highly reactive calcium fertilizer with a high magnesium content, in the form of granules with the highest acidifying parameters, intended for effectively raising the pH of the soil and supplying plants with calcium and magnesium. The product is the result of specialized processing and is classified as type PFC2 - a liming agent in accordance with Regulation (EU) 2019/1009 of the European Parliament and of the Council of 5 June 2019. The fertilizer is characterized by a higher content of calcium oxide and magnesium oxide, which amounts to 35% CaO and 16% MgO in dry mass. The remaining composition of the fertilizer includes compounds of silicon, molybdenum, and iron.
The product should be applied for sowing, similar to other granular fertilizers, using standard agricultural spreaders. As a result of tests, it has been found that for the vast majority of spreaders available on the Polish market, the fertilizer exhibits excellent spreading parameters. In the case of using spreaders with high capacity and small angles, it is necessary to increase the throttle opening and increase the tractor speed. This will eliminate the possibility of the fertilizer "hanging". If this occurs, shake the basket to unblock the chute. In case of recurring problems, clean the loading basket before reloading the fertilizer and reduce its single dose (e.g., to 1 ton). The power transmission roller must be activated only when starting the fertilizer sowing – if the roller is activated before sowing begins, the spreader blades will grind the granules into powder form and block the chute, causing sowing problems and excessive dusting during spreading. Experiences conducted by the manufacturer indicate that following the above guidelines allows for avoiding sowing problems – especially when the fertilizer dose is less than 500 kg per hectare. POLCALC Magnesium PLUS is produced in a completely ecological technology – without the use of glues or other "enhancers". Water is used as the granules binding substance. Thanks to this, the fertilizer is characterized by high reactivity. This means that immediately after reaching the soil and binding with the water contained in it, the granules decompose and react with the soil solution. The release of beneficial mineral substances thus occurs rapidly. Each granule of the product has a huge acidifying potential. Laboratory tests indicate that it allows acidifying about 0.5 kg of soil from pH 4 to pH 7! To properly utilize this potential, it is necessary to remember a few guidelines. POLCALC Magnesium PLUS is recommended to be used "sub-surface" or at planting depth! To maintain the correctness of the acidification process, the granulate should be evenly spread over the leveled surface of the field. Under the influence of moisture, the fertilizer then breaks down, which, along with rainfall, evenly washes and acidifies the entire soil profile. It should be emphasized that this does not cause any loss of active substances due to evaporation or pose any risks to plants; hence the possibility of sub-surface application and directly to green areas. Sowing the fertilizer "under the plow" reduces the benefits of its application! This radically reduces the uniformity of the soil acidification process and delays the granule decomposition process.
The product can be safely mixed with other granulated fertilizers and other (dusty) fertilizers, except: manure, phosphorus fertilizers, and fertilizers containing the ammonium version of nitrogen.
CE POLCALC Magnesium PLUS fertilizer is packed in a 500 kg big-bag with a foil insert to protect against moisture. Store in a dry and ventilated place, under a roof. It is best to protect against the influence of atmospheric precipitation.