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AssigneeUnion Oil Company of California
InventorsDonald C. Young, James A. Green, II
Estimating the term…
A stabilized fumigant composition comprises an aqueous solution containing up to about fifty percent by weight of a solute which comprises ammonia, hydrogen sulfide and carbon disulfide. Elemental sulfur can also be a component of the solute. One preferred composition comprises a solution wherein the molarity of hydrogen sulfide is about 1.5 times the molarity of carbon disulfide, and is about one-half the molarity of ammonia, and wherein the molarity of sulfur is about 1.6 times the molarity of carbon disulfide. The composition decomposes in a soil environment to form sources of available plant nutrients, including ammonia, hydrogen sulfide and sulfur, and carbon disulfide which inhibits nitrification and decreases the nematode population. Nutrient content can be enhanced by the addition of, for example, ammonia, ammonium nitrate, urea and mixtures thereof to the formed composition. The composition can also be decomposed by dilution or heat application, or both, to yield its components for non-soil fumigation uses.
A fumigant composition comprising an aqueous solution of a solute which comprises an effective amount of ammonia, hydrogen sulfide and carbon disulfide, wherein the molarity of hydrogen sulfide is greater than the molarity of carbon disulfide, and is about one-half the molarity of ammonia.
A fumigant composition comprising an aqueous solution containing a solute in an amount up to about fifty percent by weight, which solute comprises an effective amount of ammonia, hydrogen sulfide and carbon disulfide, wherein the molarity of hydrogen sulfide is greater than the molarity of carbon disulfide, and is about one-half the molarity of ammonia.
A fumigant composition comprising an aqueous solution containing from about 0.1 percent to about 50 percent by weight of a solute which comprises an effective amount of ammonium sulfide and carbon disulfide, wherein the molarity of ammonium sulfide is greater than that of carbon disulfide.
A fumigant composition comprising an aqueous solution containing from about 0.1 percent to about 50 percent by weight of a solute which comprises an effective amount of ammonium sulfide, carbon disulfide and a soluble sulfide, wherein the molarity of ammonium sulfide is equal to or greater than the molarity of carbon disulfide, and the combined molarity of ammonium sulfide and soluble sulfide is up to about twice the molarity of carbon disulfide.
Dependencies are inferred from the claim text.