Agropolychim AD (JSC) in parallel with the traditionally offered and known to the agricultural manufacturers products as ammonium nitrate, triple superphosphate, monoammonium sulphate and diammonium phosphate includes in its product list also complex combined NP and NPK fertilizers with or without microelements. NPK fertilizers are complex highly efficient combined fertilizers with contents of the main macro-nutritional elements nitrogen, phosphorus and potassium. Advantage of the combined fertilizers is the contents of micro-nutritional elements and there are contents of sulphur in some of them. The fact that all the needed nutritional elements needed by the plant in the initial phases of its development are collected in one granule makes the NPK fertilizers very productive. Except for stock fertilization they may also be used during vegetation for provision of the crops with nutritional substances in the critical phases of their development. The forms in which the nutritional elements are placed in the NPK fertilizers do not exert any impact over the acidity of the soils. The potassium form is presented as potassium sulphate which makes it suitable for assimilation by the plant and contributing to the assimilation of the remaining nutritional elements. The fertilizers which are with contents of potassium with chloride base provide a prerequisite for acidification of the medium around the root of the plant and blocking the receipt of a certain group of macro-nutritional elements. Due to their balanced form and the comparatively low contents of active substance the NPK fertilizers are very suitable for correcting fertilization. Fertilization during vegetation with NPK predisposes to bigger percentage of assimilation by the plants than if other one- and two-components “heavy” fertilizers are used. NP is nitrogen-phosphorus fertilizer, created for feeding soils which are provided with potassium in contents. It is suitable for fertilization of almost all the crops both at pre-sewing preparation and for correcting fertilization. NP has comparatively low contents of easy to assimilate in form nutritional elements which makes it the good solution for each farm.