A combined organomineral NPK—Si-humate fertilizer having at least one particulate mineral NPK fertilizer is provided, which has at least one nutrient compound of nitrogen, phosphorous or potassium; and a particulate humic substance based silicon fertilizer, having chelates of monosilicic acid-humate compounds. The application also relates to a method of production of the combined organomineral NPK—Si-humate fertilizer.

A combined organomineral NPK—Si-humate fertilizer having at least one particulate mineral NPK fertilizer is provided, which has at least one nutrient compound of nitrogen, phosphorous or potassium; and a particulate humic substance based silicon fertilizer, having chelates of monosilicic acid-humate compounds. The application also relates to a method of production of the combined organomineral NPK—Si-humate fertilizer.

The invention relates to a conditioning agent for reducing water absorption and dust formation of a particulate fertilizer, comprising 10 to 50 weight % of wax, 40 to 90 weight % of mineral oil and 1 to 15 weight % of a resin being mineral oil-soluble and miscible with wax and mineral oil, wherein the agent further comprises 0.1 to 1 weight % of a viscoelastic elastomer selected from the group of polyisobutylene and styrene-isoprene-styrene block copolymer which is soluble in mineral oil and has an average molecular weight of 30.000 to 5.000.000. The invention further relates to a particulate fertilizer composition, preferably a urea-ammonium sulfate (UAS) fertilizer, a urea fertilizer or a calcium nitrate fertilizer, comprising a particulate substrate, preferably an hygroscopic fertilizer, preferably a nitrogen-containing fertilizer, and 0.05 to 2 weight % of said coating thereon for reducing moisture uptake and dust formation of said fertilizer.

Solid acidic fertilizer granules, methods for producing the same, and methods for their use in fertigation, are disclosed. The solid acidic fertilizer granules include a plant nutrient and one or more inorganic acid distributed throughout the granules. The amount of the inorganic acid is sufficient to adjust the pH value of the fertigation solution containing the dissolved fertilizer granule to an acidic pH and prevent or reduce the precipitation of calcium in the fertigation solution.

Solid acidic fertilizer granules, methods for producing the same, and methods for their use in fertigation, are disclosed. The solid acidic fertilizer granules include a plant nutrient and one or more inorganic acid distributed throughout the granules. The amount of the inorganic acid is sufficient to adjust the pH value of the fertigation solution containing the dissolved fertilizer granule to an acidic pH and prevent or reduce the precipitation of calcium in the fertigation solution.

A biofertilizer is disclosed that include specific formulations of algae biomass and a mycorrhizal fungus. This biofertilizer may be a useful way of utilizing algae biomass created for carbon sequestration purposes for a productive agricultural purpose. The combination of algae biomass and mycorrhizal fungus may provide advantageous effects to a crop, as the algae may be a nutrient source for both the crop itself and also for the mycorrhizal fungus that allows the fungus to grow and form a mycorrhizal relationship with the root system of the crop. The biofertilizer may be pelletized with rice hull filler and have a specific range of moisture content, so as to be compatible to agricultural fertilizer delivery equipment. Methods of manufacturing the pelletize biofertilizer are also provided.

A biofertilizer is disclosed that include specific formulations of algae biomass and a mycorrhizal fungus. This biofertilizer may be a useful way of utilizing algae biomass created for carbon sequestration purposes for a productive agricultural purpose. The combination of algae biomass and mycorrhizal fungus may provide advantageous effects to a crop, as the algae may be a nutrient source for both the crop itself and also for the mycorrhizal fungus that allows the fungus to grow and form a mycorrhizal relationship with the root system of the crop. The biofertilizer may be pelletized with rice hull filler and have a specific range of moisture content, so as to be compatible to agricultural fertilizer delivery equipment. Methods of manufacturing the pelletize biofertilizer are also provided.

A biofertilizer is disclosed that include specific formulations of algae biomass and a mycorrhizal fungus. This biofertilizer may be a useful way of utilizing algae biomass created for carbon sequestration purposes for a productive agricultural purpose. The combination of algae biomass and mycorrhizal fungus may provide advantageous effects to a crop, as the algae may be a nutrient source for both the crop itself and also for the mycorrhizal fungus that allows the fungus to grow and form a mycorrhizal relationship with the root system of the crop. The biofertilizer may be pelletized with rice hull filler and have a specific range of moisture content, so as to be compatible to agricultural fertilizer delivery equipment. Methods of manufacturing the pelletize biofertilizer are also provided.

The invention is directed to manufacture of fertilizer having commercial levels of nitrogen supplemented with organic substances. The process treats organic matter with acid causing hydrolysis of organic polymers after which the mix is injected with nitrogen. The resultant sterilized and liquefied organic matter is disbursed over recycled material for the production of granules. Because the process allows for the controlled addition of acids and ammonia, desired levels of components can be achieved. The process is scalable, odor controlled and safe thereby allowing for the location of biosolid processing facilities in most any location. Further, the fertilizer of the invention provides a dual nitrogen-release profile when applied to crops. After application to soil, fertilizer of the invention releases an immediate bolus of nitrogen, similar to traditional ammonium sulfate, followed by continued slow release of nitrogen typically over a season.

This invention is connected with the products and the process of coal-based fertilizer, the process of which starts with coal crushing, filtering, mixing with other substances such as salt and essential nutrients maturing and forming the fertilizer into granules or prills (granulation). The processes of crushing and filtering will make the coal change into a simple form so that it can more easily be used by plants, while the granulation process will make this coal fertilizer easier to use when the application of fertilizing has to be done.