Effectiveness of applying EcoGrow fertilizer with active silicon as a straw destructor and foliar dressing at tillering stage in spring wheat growing

Abstract

The revealed positive patterns of the influence of silicon from silicon-containing preparations on enhancing the mineralization of organic residues and increasing the utilization rates of nutrients from mineral fertilizers allowed setting the goal to study the effectiveness of applying EcoGrow liquid concentrate with active silicon as a destructor of organic residues and foliar dressing at spring wheat tillering stage. Under the conditions of the temperately arid forest-outlier steppe of the Altai Region, against the background of subsurface tillage, the experiment was conducted with the application of organo-mineral fertilizer EcoGrow with silicon in rates of 15 and 20 L ha as a destructor of organic straw and foliar dressing (2 L ha) at tillering stage of the Uralosibirskaya spring wheat variety. This technology contributed to a slight decrease of the content levels of mobile forms of nitrogen, phosphorus, potassium and sulfur which was associated with their consumption by plants and the formation of a higher yield. Both with a single application and combined with foliar dressing, there was increased degree of flax linen decomposition by 5.74-29.1% with the greatest activity at a rate of 15 L ha + foliar dressing at tillering stage. The EcoGrow fertilizer with silicon in rates of 15 and 20 L ha contributed to increase of productive tillering, and the number of spikelets and grains per ear, respectively, from 14.8 to 15.1-15.3 and from 27.7 to 28.9-32.0 pieces; that ensured yield gain from 2.27 to 2.47-3.03 t ha or increased by 8.8-33.48% with a noticeable advantage of the double application of EcoGrow with Si in a rate of 15 L ha as a destructor and with foliar dressing. Besides, thousand-kernel weight increased, the protein content increased from 16.5 to 16.8-18.0% and gluten content - from 23.1 to 25.0-28.2%. Higher grain quality indices were formed against the background of EcoGrow application in a rate of 20 L ha.