Determining the influence of various levels of mineral fertilizers to obtain the optimum productivity of two sugar beet (Beta vulgaris L.) hybrids was the prime goal of the pertinent research. The sugar beet responsiveness’ identification and their payback by enhanced yield to increasing fertilizer rates was effective. The fertilizers’ role in managing the variations in the primary indicators of efficient soil fertility has also been evident. Regression analysis described the relationship among the fertilizer intensity, soil agrochemical indicators, and the productivity of sugar beet. It allowed, with a high degree of reliability, to predict the sugar beet yield of the two hybrids (Aksu and Yampol) at different levels of fertilizer strength. The data characterizing the state of sugar beet sowing in Kazakhstan over the past 10 years are accessible.

Keywords: Sugar beet (Beta vulgaris L.), hybrids, mineral fertilizers, elements of mineral nutrition, productivity, payback

Key findings: Characterizing the potential of two sugar beet (Beta vulgaris L.) hybrids (Aksu and Yampol) with high root yield revealed that both crossbreeds have significantly higher yields (83.7–85.2 t/ha). The hybrid Yampol showed some advantages over the other hybrid Aksu. In the hybrid Yampol, responsiveness to increased fertilizer rates occurs in the entire range of standards used, and, presumably, an increase in the fertilizer application rate (above 540 kg/ha) will increase root yield. The high responsiveness of the hybrid Aksu was notable in a narrower range of fertilizer norms (330–420 kg/ha). However, with an increased fertilizer rate (above 420 kg/ha), there was no similar increase in the sugar beet root yield.