Background. Liquid complex fertilizers (LCF) hold key position as in industry and so in agriculture. NP-fertilizers are an concentrated solution of ammonium phosphates that are necessary for greenhouse economy especially for foliar by drip irrigation. However, high cost of concentrated LCF can be clarified by application of valuable raw material such as superphosphoric acid or purified orthophosphoric acid, which are absent in Uzbekistan. One of the ways to reduce manufacture of LCF production is to apply Kyzylkum wet process of phosphoric acid (WPA). Purpose. To get liquid balanced NP-fertilizers based on ammonization WPA (17% Р2О5) by ammonia with addition ammonium nitrate and to investigate their composition and properties (density, viscosity, vapour pressure, conductivity, and degree of clarification). Methodology. The process of WPA preparation was performed through gaseous ammonia until pH 4.51 to 6.56. In order to obtain LCF brand N : Р2О5 = 1 : 0.5, 1 : 0.7 and 1 : 1 in ammophos slurry ammonium nitrate was added. In the liquid NP- fertilizers content of nitrogen was determined by Kjeldahl while various forms of phosphorus was evaluated using UV-spectroscopy. Meanwhile, the density was measured with pycnometric, viscosity, kinematic methods, specific conductivity - with conductometric, vapour pressure – with dynamic methods. Whereas, degree of clarification was studied depending upon the storage time. Originality. The novel findings on physicochemical properties of liquid NP-fertilizers were obtained based on low concentrated WPA. It was established that these types of the fertilizers in comparison with standard ones have good rheological properties, homogeneous composition when adding bentonite suspension and low fluidity in a hot conditions. Findings. It was shown that depending on pH value and weight ratio of N : Р2О5 in liquid NРfertilizers, content of N varied in a range from 12.55 to 19.20%, Р2О5total. from 9.22 to 13.07%. In them there is a high indicator of Р2О5water : Р2О5total equal to 91.37-94.31%. Increasing рН from 4.51 to 6.56 leads to raise of both density and viscosity of the slurry but weight ratio of N : Р2О5 from 1 : 0.5 to 1 : 1 and temperature from 20 to 80°С, contrary to decreasing. However, at all cases the slurries are liquid and fluid (1.241-1.363 g/сm3 and 1.20-4.99 сps). Their conductivity is (41.0-65.4 сm/m) closer to known liquid fertilizers. In a range 20-70°С vapour pressure over LCF constitutes 1.26-24.03 Pа that evidences concern low volatility in a hot condition. Highlights: * there are data on liquid:NР-fertilizers obtaining based on Kyzylkum WPA; * study of their physicochemical properties was fulfilled; * liquid NР-fertilizers possess high fluidity and low volatility in a hot condition.