Aqueous fertilizer solutions containing dicyandiamide
AssigneeSKW Trostberg Aktiengesellschaft
InventorsHorst Michaud, Georg Rieder, Josef Seeholzer
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Abstract
Aqueous solutions of commonly used fertilizers which also contain dicyandiamide, in an amount to provide at least 10% by weight of dicyandiamide nitrogen, are effective nitrification inhibitors and have an improved capacity to dissolve micronutrients to form solutions of improved micronutrient stability.
Claims14
A fertilizer composition which is an aqueous solution of a nitrogen-containing compound selected from urea, ammonium nitrate, ammonia and mixtures thereof and dicyandiamide in an amount such that the dicyandiamide nitrogen is 10% or more by weight of the total nitrogen of said solution.
A fertilizer composition consisting essentially of an aqueous solution of at least one commonly used nitrogen-containing fertilizer compound selected from urea, ammonium nitrate, ammonium sulfate and ammonia, said solution having micronutrients dissolved therein and containing a stabilizing amount of dicyandiamide to maintain said micronutrients in solution.
In an aqueous micronutrient-containing nitrogenous fertilizer solution containing at least one fertilizer compound selected from urea, ammonium nitrate, ammonium sulfate and ammonia, the improvement which comprises a stabilizing amount of dicyandiamide in said solution to prevent precipitation of said micronutrients.
Dependencies are inferred from the claim text.