Storage-stable solutions containing cyanamide

A solution containing cyanamide, comprising:

• a) 15 to 60% by weight of cyanamide,
• b) 0.01 to 4% by weight of a stabilizer comprising one or more compounds from the group of phosphorus-containing acids or the salts thereof,
• c) a nonionic surfactant present up to 4% by weight wherein the nonionic surfactant further contains one or more compounds selected from the group of ethoxylates according to Formula (I), wherein for Formula (I) the following applies,
• R1—O—(CH2CH2O)n—H Formula (I)
• wherein for the radical R1 the following applies:
• R1=a polyfunctional siloxane group according to Formula (V), wherein for Formula (V) the following applies
• wherein for the indices u, v and y, independently from each other, the following applies:
• u=a number from 0 to 3 and
• v=a number from 0 to 3,
• y=a number from 2 to 10,
• n=a number from 2 to 10;
• and
• d) water as the remaining weight of the total solution,
• wherein the components a) and c) are present in a weight ratio of cyanamide to nonionic surfactant in the range from 500:1 to 5:1.