Carbonate calcium fertilizers have been used for centuries. Calcium, calcium-magnesium and chalk dolomites regulate the soil reaction too slowly. The declining strength of OrCal fertilizer is calcium hydrate – a natural derivative of pure oxide reagent. As a result, it regulates the pH of the soil very quickly and safely The OrCal fertilizer with active calcium hydrate has turned out to be a fantastic alternative to traditional calcium fertilizers, slow acting, not soluble in water, and this is because the active calcium hydrate is almost 100 times more soluble in water than traditional carbonates. This can be easily demonstrated by dissolving active calcium hydrate in water, comparing the solubility of carbonate fertilizers, for example dolomites or chalk fertilizers. The result of this experiment leaves no doubts, that the OrCal fertilizer with an active calcium hydrate sensationally raises the pH of the soil in a quick and safe way, largely distancing traditional calcium fertilizers, dolomites and chalks, which operate much slower. We allowed ourselves to break away two groups of plants from the part of the field where the Orcal fertilizer was not used and from the part where it was used last year before beetroots. Differences in action can be seen with the naked eye. The roots are definitely smaller and shorter in a smaller amount. Here, this root beam is very rich, so the plant, ground shoot and ear are much better fed. Here the plants could accumulate much more nutrients from the soil and water, which resulted in the size of the shoot and ear. In Orcal, active dehydrating calcium is responsible for de-acidification of soil, and organic matter perfectly fertilizes the soil. This active calcium hydrate is very good, mainly because in combination with organic matter, i.e. organics plus calcium, i.e. calcium, the effects are best because the humus fractions, that are best for buffering sorbents, are being formed. Orcal is part of a pragmatic approach to modern agriculture. According to research conducted by the Institute of Soil Science and Plant Cultivation in Puławy, this fertilizer increases the growth of green mass from 20% to 40% and cereal protein till 30%. In case of wheat by 18%. It is a 100% Polish product, the effect of Polish technological thought, many times awarded at agricultural fair events. More and more farmers need quick and effective ways to reduce soil acidification. The better the condition of the land, the better the harvest. Farmers mainly focus on the ingredients that determine the size of the crop, i.e. nitrogen, phosphorus, micronutrients, while forgetting, in my opinion, the most important component, which is calcium. We should start every technology of growing an agricultural plant just from regulating the pH of the soil. In 2017, pilot studies on the effect of fertilizer on maize growth and development were carried out. It is clear from these studies that the combined use of mineral fertilizers with Orcal results in the fact that we can reduce the amount of mineral fertilization, thus improving the efficiency of cultivation of this plant. Due to the very favorable results obtained in maize, research was also conducted on the effect of organic-mineral fertilizer in the cultivation of winter oilseed rape. Initial results show that even with this plant OrCal has a very positive effect on the growth and development of autumn rape. The fight for product quality is also a technological regime. The OrCal fertilizer and FuelCal technology, thanks to which it is created, are patented. We pay very much attention to the fact that technological regimes are respected. It is important that the fertilizer is effective and safe. Manufacturers, that comply with strict technological regime, according to the patent of fertilizers with controlled release of chemicals to the soil, can be proud of very high quality products , which affect the yields obtained by farmers. Thus, such a product is easily sown and dispensed on fields by farmers, therefore maintaining quality and adherence to the technological regime is very important for the dissemination of our product. When it comes to product quality (OrCal), it is important because it results directly into the quality of the crop, that the farmer harvests from the field. Attention to compliance with the regime and technological process, that guarantees this quality, translates directly into the final effect, that the farmer collects from the field. The right fertilizer is one thing, but its precise application is the second one. It is already possible to prepare a very detailed map of soil physical variability and abundance of nutrients and pH, which can be used for variable mineral fertilization and liming. Fertilizers like OrCal are very modern, and in order to take advantage of all their advantages, precision farming technologies should be used. First of all, we carry out soil research, which will allow us to estimate the condition of our soil, how much of this fertilizer it needs. Most often, there is very high variability, it turns out that in one area of the field completely different doses are required than in the other. To do this, as already mentioned, we do soil research, and provide the farmer with professional maps ith doses of fertilizers. The second stage is the precise application of this fertilizer. Here, parallel navigation comes in handy, which on the one hand gives the spreader information about the dose to be used in a given place, and on the other hand we drive in parallel. Often, liming is done without technological paths Navigation allows us to travel every few meters without making bookmarks and belts, which is very important for even distribution of fertilizer. The application of precision agriculture systems in fertilizer spreaders is the next stage on which more and more farms are deciding. Adaptation of machines to work in this system gives a number of benefits, first of all optimization of fertilization, which contributes to obtaining higher yields and also often for saving mineral fertilizers.