Aqueous or solid nitrogen containing compound compounds are produced by heating urea with wet solid sewer sludge thereby producing a urea-urea condensate-sewer sludge composition in a process to dry out the sewer sludge. The urea reacts with itself and with the compounds in the sewer sludge. The urea and/or urea condensate reacts with the sulfur containing compounds thereby reducing the odor from heating the sewer sludge. The urea-urea condensate-sewer sludge composition is useful as a bio-fertilizer, may be utilized to fight grass, forest, building fires, flame retard other flammable organic material by applying it on or incorporating it in these flammable organic materials and may be reacted with aldehydes to produce resins. Carbonization auxiliaries, such as phosphorus containing compounds, metal containing compounds that will accelerate carbonization, heat reflector, surfactant and fillers may be added to or reacted with the aqueous or solid urea-urea condensate-sewer sludge composition.

An improved liquid feed supplement composition for ruminant animals and a method for its preparation wherein water, urea and an aldehyde are reacted in the presence of a catalyst which is effective to promote a reaction between the urea and the aldehyde and which also provides nutrients for the ruminant, and in the presence of molasses.

A nitrogen fertilizer manifesting fungicidal property against Pathogenic fungi contains as its effective component a water soluble initial condensation product prepared by causing formaldehyde to react with urea. The fertilizer may be admixed with one or more of other fertilizers of various types.

A new method of preparing granular slow release nitrogen fertilizer, exhibiting substantially complete nitrogen availability as a plant nutrient, from nitrogenous organic wastes, such as animal excretia, by coreacting particulate dry conditioned nitrogenous organic waste and reactive ureaformaldehyde oligomer; and the slow release fertilizer exhibiting improved nitrogen availability prepared by the new method. The preconditioning of the waste and the preparation of the reactive oligomer are arranged so that the method for forming the new composition is effectively carried out in a damp dry, free flowing particulate system. Parameters are provided for: dry conditioning the wastes, oligomer forming, coreacting, and granulating.

Readily available, solid carbohydrate materials comprising water-insoluble polysaccharides are converted into slow-release nitrogen products valuable as a protein substitute in ruminant feeding and as a slow-release fertilizer for growing plants. The slow-release properties are achieved by acid catalyzed reaction of an amide such as urea or biuret with partially degraded polysaccharides and by agglomeration of this combination into particles having substantial physical integrity. Improved agglomeration is achieved by pelleting the amide-polysaccharide intermediate product in the presence of a minor amount of a urea-formaldehyde polymer.