PURCHASE AND RESEARCH OF UREA-BASED PHOSPHORUS-CONTAINING LIQUID - COMPLEX FERTILIZERS

The urgency of the matter. In recent years, there has been a high demand for various types complex NPK fertilizers in world mineral fertilizer market. This situation is primarily related to their agrochemical value, because such allow introduce all three most important nutrients into soil at same time - nitrogen, phosphorus and potassium.Plant growth, development yields are directly nutrition. Fertilizers have great role providing plants with nutrients. They increasing fertility, productivity agricultural improving quality obtained product. As we know, nutrient elements should be applied separately soil¬¬copper number disadvantages. All contain several chemical elements, some which can harm plants. So, e.g. production phosphorous fertilizers, CaSO4 as result processing phosphates sulfuric acid introduced ballast. Also, certain amount fluorine transferred superphosphate. During nitric acid, active hydrogen ion used split phosphates, while anions remain desired nitrogen component finished However, slightly higher dose lead decrease fertility contamination food products¬¬causes Thus, product, nitrates increase, vitamin "C", sugar decreases, plant develops unilaterally, lowers its biological value. Ka¬¬lium also very necessary potash ballast (CI, Na). When doses systematic fertilization carried out, they accumulate reduce ultimately not either or soil. Other metals contained it (Cd, Hg, Pb, Al) living organisms cause poisonings by entering groundwater. this regard, macro micronutrients¬¬¬¬ha highly concentrated agrochemically more effective liquid fertilizer¬¬¬¬¬¬¬¬¬organization seeds, including NPK¬¬The rich trace an actual problem modern era. interesting (nitrogen, phosphorus, potassium) liquid-complex fertilizers. Nitrogen-based use ammonium nitrate urea, content 35.0% 46.7%, respectively. first case, product called nitroammophos, second carboammophos. Keywords: plants, raw materials