The disclosure relates to an agricultural composition comprising paraformaldehyde, a nitrification inhibitor, urea, an ammonia source, or a combination thereof and one or more reaction products prepared from paraformaldehyde, a nitrification inhibitor, urea, an ammonia source, and optionally a solvent, wherein the one or more reaction products is present in an amount of at least 20 wt. % of the total weight of the agricultural composition. Also discloses is a fertilizer composition comprising the agricultural composition and a nitrogen source. Further disclosed are processes for preparing an agricultural composition.

A fertilizer blend containing 10 wt. % to 90 wt. % of a first particulate fertilizer composition and 10 wt. % to 90 wt. % of a second particulate fertilizer composition is disclosed. In the fertilizer blend, the second particulate fertilizer composition can be blended with the first particulate fertilizer composition. The first particulate fertilizer composition can include a core containing a binder, a pH buffering agent, and an urease inhibitor, and a shell containing urea, where the shell covers at least a portion of an outer surface of the core.

A fertilizer blend containing 10 wt. % to 90 wt. % of a first particulate fertilizer composition and 10 wt. % to 90 wt. % of a second particulate fertilizer composition is disclosed. In the fertilizer blend, the second particulate fertilizer composition can be blended with the first particulate fertilizer composition. The first particulate fertilizer composition can include a core containing a binder, a pH buffering agent, and an urease inhibitor, and a shell containing urea, where the shell covers at least a portion of an outer surface of the core.

An aqueous urease inhibitor and/or nitrification inhibitor formulation includes an aqueous wax dispersion, which includes about 10-50% by weight high melting point emulsifying wax, water to make up to 100%, at least one inhibitor active in an amount of 1wt% -30wt% of the aqueous wax dispersion, and a dispersing clay in an amount of 5wt% -50wt% of the aqueous wax dispersion.

An aqueous urease inhibitor and/or nitrification inhibitor formulation includes an aqueous wax dispersion, which includes about 10-50% by weight high melting point emulsifying wax, water to make up to 100%, at least one inhibitor active in an amount of 1wt% -30wt% of the aqueous wax dispersion, and a dispersing clay in an amount of 5wt% -50wt% of the aqueous wax dispersion.

Provided is a soil conditioner that comprises, as an active ingredient, a compound represented by general formula (1), a salt thereof or a solvate of the same. In general formula (1), R.sup.1 to R.sup.6 independently represent an optionally substituted hydrocarbon group having 1-5 carbon atoms, an optionally substituted alkoxy group having 1-5 carbon atoms, an amino group, a hydroxy group, a halogen atom or a hydrogen atom.

##STR00001##

Provided is a soil conditioner that comprises, as an active ingredient, a compound represented by general formula (1), a salt thereof or a solvate of the same. In general formula (1), R.sup.1 to R.sup.6 independently represent an optionally substituted hydrocarbon group having 1-5 carbon atoms, an optionally substituted alkoxy group having 1-5 carbon atoms, an amino group, a hydroxy group, a halogen atom or a hydrogen atom.

##STR00001##

The present invention relates to mixtures comprising a carrier A comprising a compound I (first nitrification inhibitor) and a carrier B optionally comprising a compound II (second nitrification inhibitor), wherein the compound I (first nitrification inhibitor) and the compound II (second nitrification inhibitor) are both selected from the group consisting of different nitrification inhibitors; to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of one compound I and one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant; to agrochemical compositions comprising these mixtures; and to plant propagation material, comprising these mixtures or these agrochemical compositions. The present invention especially relates to mixtures comprising DMPSA and DMP/DMPP.

The present invention relates to mixtures comprising a carrier A comprising a compound I (first nitrification inhibitor) and a carrier B optionally comprising a compound II (second nitrification inhibitor), wherein the compound I (first nitrification inhibitor) and the compound II (second nitrification inhibitor) are both selected from the group consisting of different nitrification inhibitors; to a method for improving the nitrification-inhibiting effect, or for increasing the health of a plant using mixtures of one compound I and one compound II; to the use of mixtures comprising compounds I and compounds II for increasing the health of a plant; to agrochemical compositions comprising these mixtures; and to plant propagation material, comprising these mixtures or these agrochemical compositions. The present invention especially relates to mixtures comprising DMPSA and DMP/DMPP.

There is provided a nitrogen fertilizer granule in which the nitrogen release can be timed and the nitrogen release rate can be controlled according to the needs of the plants to be fertilized. The smart release nitrogen-containing fertilizer granule comprises a nitrogen-containing fertilizer core; an organic functional layer covering the core, wherein the organic functional layer comprises at least one functional organic compound that is an enzyme inhibitor, a microbial suppressor, a phosphorus solubilizer, and/or a plant hormone; a controlled release layer covering the organic functional layer, wherein the controlled release layer comprises water-swellable copolymeric nanoparticles; and an anticaking layer covering the controlled release layer, wherein the anticaking layer comprises water-insoluble copolymeric nanoparticles.