Compositions and methods comprising nitrification inhibitors containing a mixture of protic and aprotic solvent systems

A liquid fertilizer composition comprising

• a. urea,
• b. one or more liquid additives,
• c. water,
• d. optionally one or more members selected from the group consisting of:
• i) dyes/colorant(s), ii) surfactant(s), and iii) micronutrient(s),
• e. one or more protic solvents selected from the group consisting of
• i. one or more alkylene glycols, and
• ii. one or more poly(alkylene) glycols,
• f. one or more polar aprotic solvents selected from the group consisting of:
• i. dimethyl sulfoxide, and
• ii. one or more members selected from the group consisting of dialkyl, diaryl, or alkylaryl sulfoxide(s) of formula
• R9S(O)xR10
• wherein R9 and R10 are each independently a C1-C6 alkylene group, an aryl group, or a C1-C3 alkylenearyl group, or R9 and R10 with the sulfur to which they are attached form a 4 to 8 membered ring wherein R9 and R10 together are a C1-C6 alkylene group which optionally contains one or more atoms selected from the group consisting of O, S, Se, Te, N, and P in the ring, and
• X=1 or 2
• wherein said wherein said one or more liquid additive comprises one or more nitrification inhibitors, wherein said one or more nitrification inhibitors are selected from the group consisting of:
• i. dicyandiamide,
• ii. 2-chloro-6-(trichloromethyl)pyridine,
• iii. 4-amino-1,2,4,6-triazole HCl,
• iv. 2,4-diamino-6-trichloromethyltriazine,
• v. thiourea,
• vi. 1-mercapto-6-1,2,4-triazole,
• vii. 2-amino-4-chloro-6-methylpyrimidine, and
• viii. 3,4-dimethylpyrazole phosphate, wherein said one or more liquid additives comprise one or more nitrification inhibitors completely dissolved into a solution and wherein said one or more liquid additives are substantially free of water.

A liquid fertilizer composition comprising

• a. Urea,
• b. One or more liquid additives,
• c. Water,
• d. optionally one or more members selected from the group consisting of i) dyes/colorants, ii) surfactants, iii) micronurtrients, and iv) buffers,
• e. one or more protic solvents selected from the group consisting of
• i. one or more alkylene glycols
• ii. one or more poly(alkylene) glycols, and
• f. dimethyl sulfoxide
• g. wherein said one or more liquid additives comprise i) dicyandiamide wherein said dicyandiamide is completely dissolved and wherein said one or more liquid additives are substantially free of water.