EFFECTIVENESS OF DIFFERENT AGROCHEMICALS AND THEIR APPLICATION METHODS IN LENTIL CULTIVATION

The article presents the results of research (2021-2023) to study the effect of various agrochemicals (nitrophoska N16P16K16,, Biostim for grain, Ultramag Molybdenum, Intermag Profi for pods and legumes) and methods of their application (application in rows and foliar fertilization) on the yield of new lentil varieties (Vostochnaya, Orlovskaya the redgrained and Flamenco). It was found that even in a variety of weather conditions in the years of research, the leading position in terms of yield level is occupied by the variety Flamenco (1.97-2.18 t/ha). Variation of this indicator in the variety Vostochnaya from 1.59 to 1.84 t/ha, in the variety Orlovskaya the redgrained - from 1.89 to 2.09 t/ha. The share of influence of the factor "variety" on lentil grain harvest from 1 ha ranges from 19.7 to 25.1%. It was revealed that the use of complex mineral fertilizers (nitrophoska N16P16K16 – application in rows), as well as organomineral (Biostim for grain, Ultramag Molybdenum, Intermag Profi for pods and legumes – foliar fertilization at budding and bean initiation phases) provides a statistically reliable increase in yield from 0.10 to 0.21 t/ha with a share of their significance: in Vostochnaya variety - 7.8%, in Orlovskaya the redgrained variety - 8.1%, in Flamenco variety - 8.5%. It was revealed that the efficiency of application of tested agrochemicals on lentils depended on the weather conditions of a particular year, the proportion of their influence in the varietal aspect was 54-60-76%, respectively. The factor "method of application" of agrochemicals was less effective: its share, on average, is from 2.3 to 3.5%. The conducted comparative assessment of the effectiveness of agrochemicals depending on the method of application showed that leaf fertilization of lentils with organomineral fertilizers produced by JSC "Shchelkovo Agrochem", the most economically justified, as at lower costs for their consumption per hectare provides income from 8.73 to 1293 thousand rubles/ha, which is 4.51-6.91 thousand more than the application of complex mineral fertilizers in rows. Consequently, to optimize mineral nutrition in lentil cultivation, it is advisable to use leaf fertilization with organomineral complex fertilizers during the growing season, as an alternative way to apply complex fertilizers in the rows