The present invention relates to a method for utilizing fine-particle peat, in particular to a method for improving the stability of planting substrates.

A method of treating an earthen formation that includes introducing a first amount of a first blocked isocyanate in a liquid phase into the earthen formation; introducing a second amount of a second blocked isocyanate in a liquid phase into the earthen formation; the second blocked isocyanate group having a lower unblocking temperature than the first blocked isocyanate group; introducing at least one active hydrogen compound into the earthen formation; and contacting the first and second blocked isocyanates and the active hydrogen compound to form an elastomeric gel. The combination of two blocked isocyanates provides a synergistic effect so that the curing time can be optimised in a manner unexpected from the properties of the individual blocked isocyanates.

A method of treating an earthen formation that includes introducing a first amount of a first blocked isocyanate in a liquid phase into the earthen formation; introducing a second amount of a second blocked isocyanate in a liquid phase into the earthen formation; the second blocked isocyanate group having a lower unblocking temperature than the first blocked isocyanate group; introducing at least one active hydrogen compound into the earthen formation; and contacting the first and second blocked isocyanates and the active hydrogen compound to form an elastomeric gel. The combination of two blocked isocyanates provides a synergistic effect so that the curing time can be optimised in a manner unexpected from the properties of the individual blocked isocyanates.

A spraying agent that includes a resin emulsion, and is used for at least one of agglomeration of soil, immobilization of seeds or plants, and immobilization of a chemical agent, in which the resin emulsion includes a biodegradable resin containing an ester skeleton and having a minimum film-forming temperature of 30 C. or lower. Further, a resin sheet that is formed of a resin composition containing the above-described resin emulsion.

A spraying agent that includes a resin emulsion, and is used for at least one of agglomeration of soil, immobilization of seeds or plants, and immobilization of a chemical agent, in which the resin emulsion includes a biodegradable resin containing an ester skeleton and having a minimum film-forming temperature of 30 C. or lower. Further, a resin sheet that is formed of a resin composition containing the above-described resin emulsion.