A composition comprising one or more nitrification inhibitors and one or more urease inhibitors in an organic liquid solvating system comprising a mixture of aprotic solvents wherein a first aprotic solvent is dimethyl sulfoxide, dialkyl sulfoxide, diaryl sulfoxide, or an alkylaryl sulfoxide having the formula R 1 -S(O)-R 2 , wherein R 1 is methyl, ethyl, n -propyl, phenyl or benzyl and R 2 is ethyl, n -propyl, phenyl or benzyl, and a second aprotic solvent is one or more of 1) a C 1 -C 12 ester of a) an alcohol or polyol from the family of C 1-10 alkynols and poly(C 1-10 alkylene) glycols, b) an alkylene glycol selected from the group consisting of ethylene, propylene, and butylene glycol, c) glycerin, d) an alkylene glycol alkyl ether selected from the group consisting of dipropylene glycol methyl ether, tripropylene glycol methyl ether, and tripropylene glycol butyl ether 2) ethylene, propylene or butylene carbonate, wherein the organic liquid solvating system meets the following criteria: a. environmentally safe b. has a flashpoint above 62.7°C (145°F) c. inherently rated safe for contact with humans and animals d. results in a composition comprising at least one of nitrification and urease inhibitors with a Chill Point < 4.4°C (40° F). wherein a first aprotic solvent is dimethyl sulfoxide, dialkyl sulfoxide, diaryl sulfoxide, or an alkylaryl sulfoxide having the formula R 1 -S(O)-R 2 , wherein R 1 is methyl, ethyl, n -propyl, phenyl or benzyl and R 2 is ethyl, n -propyl, phenyl or benzyl, and a second aprotic solvent is one or more of 1) a C 1 -C 12 ester of a) an alcohol or polyol from the family of C 1-10 alkynols and poly(C 1-10 alkylene) glycols, b) an alkylene glycol selected from the group consisting of ethylene, propylene, and butylene glycol, c) glycerin, d) an alkylene glycol alkyl ether selected from the group consisting of dipropylene glycol methyl ether, tripropylene glycol methyl ether, and tripropylene glycol butyl ether 2) ethylene, propylene or butylene carbonate, wherein the organic liquid solvating system meets the following criteria: a. environmentally safe b. has a flashpoint above 62.7°C (145°F) c. inherently rated safe for contact with humans and animals d. results in a composition comprising at least one of nitrification and urease inhibitors with a Chill Point < 4.4°C (40° F). 1) a C 1 -C 12 ester of a) an alcohol or polyol from the family of C 1-10 alkynols and poly(C 1-10 alkylene) glycols, b) an alkylene glycol selected from the group consisting of ethylene, propylene, and butylene glycol, c) glycerin, d) an alkylene glycol alkyl ether selected from the group consisting of dipropylene glycol methyl ether, tripropylene glycol methyl ether, and tripropylene glycol butyl ether a) an alcohol or polyol from the family of C 1-10 alkynols and poly(C 1-10 alkylene) glycols, b) an alkylene glycol selected from the group consisting of ethylene, propylene, and butylene glycol, c) glycerin, d) an alkylene glycol alkyl ether selected from the group consisting of dipropylene glycol methyl ether, tripropylene glycol methyl ether, and tripropylene glycol butyl ether 2) ethylene, propylene or butylene carbonate, wherein the organic liquid solvating system meets the following criteria: a. environmentally safe b. has a flashpoint above 62.7°C (145°F) c. inherently rated safe for contact with humans and animals d. results in a composition comprising at least one of nitrification and urease inhibitors with a Chill Point < 4.4°C (40° F). a. environmentally safe b. has a flashpoint above 62.7°C (145°F) c. inherently rated safe for contact with humans and animals d. results in a composition comprising at least one of nitrification and urease inhibitors with a Chill Point < 4.4°C (40° F). <EOS>