The present invention relates to a method of obtaining a disaggregable granulated calcium and/or magnesium and potassium fertilizer, wherein the method comprises the steps of choosing, preparing and mixing the sources of calcium and/or magnesium and potassium, optionally the addition of chelating agents, optionally the addition of micro and/or macro nutrients, granulation and drying. The present invention further relates to a disaggregable granulated calcium and/or magnesium and potassium fertilizer.

The present invention relates to a method of obtaining a disaggregable granulated calcium and/or magnesium and potassium fertilizer, wherein the method comprises the steps of choosing, preparing and mixing the sources of calcium and/or magnesium and potassium, optionally the addition of chelating agents, optionally the addition of micro and/or macro nutrients, granulation and drying. The present invention further relates to a disaggregable granulated calcium and/or magnesium and potassium fertilizer.

A method for manufacturing a urea-formaldehyde slow-release nitrogen fertilizer includes steps of: mixing and heating urea and formaldehyde solution with a predetermined molar ratio of urea to formaldehyde; adjusting a PH value of hydroxymethylation reaction of urea and formaldehyde solution to 7.5-10.5; heating the hydroxymethylation reaction of urea and formaldehyde solution to the initial reaction temperature of 50° C.; adding a catalyst to start the hydroxymethylation reaction of urea and formaldehyde solution, and conducting hydroxymethylation reaction intermittently or continuously; heating cold urea-formaldehyde solution using the reaction heat of hydroxymethylation; adjusting the pH value of the methylenation reaction of urea and formaldehyde solution to 3.5-5.0; adding a catalyst; completing the methylenation reaction of urea and formaldehyde solution within 1 to 10 minutes; and performing spraying granulation of slurry after the methylenation reaction of urea and formaldehyde solution in the granulator to obtain a urea-formaldehyde slow-release nitrogen fertilizer.

A method for manufacturing a urea-formaldehyde slow-release nitrogen fertilizer includes steps of: mixing and heating urea and formaldehyde solution with a predetermined molar ratio of urea to formaldehyde; adjusting a PH value of hydroxymethylation reaction of urea and formaldehyde solution to 7.5-10.5; heating the hydroxymethylation reaction of urea and formaldehyde solution to the initial reaction temperature of 50° C.; adding a catalyst to start the hydroxymethylation reaction of urea and formaldehyde solution, and conducting hydroxymethylation reaction intermittently or continuously; heating cold urea-formaldehyde solution using the reaction heat of hydroxymethylation; adjusting the pH value of the methylenation reaction of urea and formaldehyde solution to 3.5-5.0; adding a catalyst; completing the methylenation reaction of urea and formaldehyde solution within 1 to 10 minutes; and performing spraying granulation of slurry after the methylenation reaction of urea and formaldehyde solution in the granulator to obtain a urea-formaldehyde slow-release nitrogen fertilizer.

There is provided a smart release potash fertilizer granule comprising a potash core; an extended release layer covering the potash core, wherein the extended release layer comprises water-swellable copolymeric nanoparticles and at least one water-soluble organic acid or water-soluble organic carboxylate salt; a controlled release layer covering the extended release 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.

A method, comprising: heating at a temperature of at least 90° C. for a time of at least 10 minutes and a pressure of at least one atmosphere: 1) a potassic framework silicate ore; 2) at least one material selected from the group consisting of an oxide, a hydroxide, and a carbonate of at least one of an alkaline earth metal and an alkali metal; and 3) water, thereby producing a first product; combining the first product with a source of a component to form a second product; and drying the second product to provide a composition comprising an MPM and the component, wherein the source of the component comprises at least one member selected from the group consisting of KCl, a macronutrient source, a micronutrient source and a source of a beneficial element. A composition, comprising: an MPM; and a component selected from the group consisting of a KCl, a macronutrient, a micronutrient and a beneficial element, wherein the MPM comprises at least two phases selected from the group consisting of K-feldspar phase, tobermorite phase, hydrogrossular phase, dicalcium silicate hydrate phase and amorphous phase.

A method, comprising: heating at a temperature of at least 90° C. for a time of at least 10 minutes and a pressure of at least one atmosphere: 1) a potassic framework silicate ore; 2) at least one material selected from the group consisting of an oxide, a hydroxide, and a carbonate of at least one of an alkaline earth metal and an alkali metal; and 3) water, thereby producing a first product; combining the first product with a source of a component to form a second product; and drying the second product to provide a composition comprising an MPM and the component, wherein the source of the component comprises at least one member selected from the group consisting of KCl, a macronutrient source, a micronutrient source and a source of a beneficial element. A composition, comprising: an MPM; and a component selected from the group consisting of a KCl, a macronutrient, a micronutrient and a beneficial element, wherein the MPM comprises at least two phases selected from the group consisting of K-feldspar phase, tobermorite phase, hydrogrossular phase, dicalcium silicate hydrate phase and amorphous phase.

Compositions and methods of using exogenous antioxidant compounds and additives for cannabis and hemp production and growth and methods for enhancing the production of secondary metabolites and alleviating stress in cannabis and hemp plants are described.

Compositions and methods of using exogenous antioxidant compounds and additives for cannabis and hemp production and growth and methods for enhancing the production of secondary metabolites and alleviating stress in cannabis and hemp plants are described.

According to some embodiments, there is provided herein a fertilizer granule comprising Polyhalite and Sulphate of Potash (SOP), wherein the granule comprises a granule strength of at least 0.5 Kg/granule.