FIELD: agriculture.
SUBSTANCE: group of inventions relates to the field of agriculture. Fertiliser comprises sulfur as reactant in the form of calcium polysulfide and auxiliary components. At that sulfur in fertiliser is in highly dispersed form with particle size of 40 - 120 nm. Auxiliary components the fertiliser contains are water soluble polymers and low-molecular polyalcohols. Components of fertiliser are in the following ratio, wt %: calcium polysulfide - 10.0 -22.0, low-molecular polyalcohols - 0.05 - 0.1, water-soluble polymers - 0.1-1, water - balance. Method includes leaf treatment of winter and spring wheat in phase of grain forming with this fertiliser.
EFFECT: invention makes it possible to increase content of protein in wheat grain.
9 cl, 2 tbl
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