Spring wheat productivity when using Megamix liquid fertilizers

Abstract

At present, the attention of scientists is increasingly attracted by the study of the effect of stimulating preparations on agricultural plants. They have a rich composition of macro-, meso- and microelements in an easily accessible form for plants, the use of which has a positive effect on plant development and, as a consequence, contributes to improving the quantity and quality of crop production, including in the specific climate of the forest-steppe of the Middle Volga region. In this connection on the fields of Scientific Research Laboratory “Korma” of Samara SAU the work to identify the impact of application of stimulating preparations Megamix in the form of liquid fertilizer mixtures in pre-sowing seed preparation and treatment of crops during the growing season of spring wheat was carried out during five years (2017-2021). The paper presents the results of research on the effect of stimulating preparations on the development of soft spring wheat agrophytocenosis at different seeding rates (4.0; 4.5; 5.0 mln germinating seds/ha). The analysis of the influence of the use of Megamix preparations on the indices of photosynthetic activity of plants, indices of yield structure and yield of spring wheat was carried out. It was found that the use of liquid fertilizers Megamix during seed treatment and in the growing season has a positive impact on the index of photosynthetic potential of crops. This indicator increases with the use of Megamix. It reaches its maximum value in the experimental variants, where seeds are treated with a stimulating preparation Megamix Seeds − 2 l/t, followed by treatment of spring wheat crops with Megamix Profi − 0.5 l/ha (in the phase of tillering (29BBCH)) + Megamix Nitrogen − 0.5 l/ha (in the phase of the flag leaf (39BBCH)), which forms the maximum yield of 3.98 t/ha.