A pellet made of dried, unfermented livestock manure has N, P and K values in the range of N: 3 to 7 g/kg, as ammoniac and organic nitrogen, P: 2 to 6 g/kg as phosphorus pentoxide and K: 2 to 6 g/kg as potassium oxide (g/kg). The pellet has a hardness exceeding 10 kg and has a shell composed of manure-base lignin. A press roll, including a hollow rotatable drum with a perforated screen, may be used in combination with an endless belt and a scraper to produce the pellet.

The present disclosure generally relates to solution dispersible plant nutrient compositions, and methods of preparing and use thereof. The solution dispersible plant nutrient composition can provide a plant nutrient with a source of nitrogen, phosphorus and potassium and where the composition comprises an amount of polyethylene glycol for facilitating dispersion and dissolution of the plant nutrient source into an aqueous solution.

The present disclosure generally relates to solution dispersible plant nutrient compositions, and methods of preparing and use thereof. The solution dispersible plant nutrient composition can provide a plant nutrient with a source of nitrogen, phosphorus and potassium and where the composition comprises an amount of polyethylene glycol for facilitating dispersion and dissolution of the plant nutrient source into an aqueous solution.

A method for capturing material extracted from biochar is provided comprising the steps of: (i) providing a biochar; (ii) contacting the biochar with an extraction media, where the extraction media causes the removal of residual compounds from the pores and surface of the biochar, creating a resulting extract comprised of the extraction media and removed compounds; and (iii) collecting the resulting extract. The method also can include other steps of extraction and purification. The method further comprises the step of applying the resulting extract to seeds, plants, soil, other agricultural products, or for use in other applications. A biochar having high levels of soluble signaling compounds is also provided, where the biochar is derived from a biomass source that together with predefined pyrolysis parameters produces resulting biochar having increased levels of soluble signaling compounds that are known to increase seed germination rates and early plant growth. Such soluble signaling compounds can then be collected in a biochar extract by contacting the biochar with an extraction media.

The present disclosure relates to hollow core granules, products incorporating the hollow core granules, and methods of making the hollow core granules. The hollow core granules can comprise at least one wall surrounding a cavity that is devoid of any solid or liquid so as to define a hollow core, the at least one wall comprising a plurality of individual particles of at least one wall forming material, the plurality of individual particles sufficiently bound together so that the at least one wall is structurally self-sustaining. The hollow core granules further can include a binder material present in the at least one wall. The hollow core granules can be useful as a standalone material and/or may be useful in preparing a variety of products wherein the hollow core granules may be mixed or otherwise combined with further components. The disclosure further provides methods of making such hollow core granules.

Fertilizers with urease inhibitors and/or nitrification inhibitors are described. The fertilizer can include an extruded granule containing urea, a polymeric binder, and a nitrification inhibitor and/or an urease inhibitor.

Fertilizers with urease inhibitors and/or nitrification inhibitors are described. The fertilizer can include an extruded granule containing urea, a polymeric binder, and a nitrification inhibitor and/or an urease inhibitor.

A method of producing a fertiliser composition, the method comprising: (a) providing partially decomposed organic matter; (b) contacting the organic matter with: (i) an anaerobic digestate; (ii) a source of nitrate ion; (iii) a source of ammonia; and (c) contacting the mixture obtained in step (b) with a source of carbon dioxid. Also claimed is a fertiliser composition comprising partially decomposed organic matter admixed with an anaerobic digestate, a source of nitrate ion, a source of ammonia and carbon dioxide.

A method of producing a fertiliser composition, the method comprising: (a) providing partially decomposed organic matter; (b) contacting the organic matter with: (i) an anaerobic digestate; (ii) a source of nitrate ion; (iii) a source of ammonia; and (c) contacting the mixture obtained in step (b) with a source of carbon dioxid. Also claimed is a fertiliser composition comprising partially decomposed organic matter admixed with an anaerobic digestate, a source of nitrate ion, a source of ammonia and carbon dioxide.

Tools and techniques for biochar method, systems, devices, and products are provided in accordance with various embodiments. For example, methods are provided in accordance with various embodiments that may include rubbing one or more objects with biochar. Rubbing the one or more objects with biochar may include: polishing one or more objects utilizing biochar; cleaning one or more objects utilizing biochar; grinding one or more objects utilizing biochar; scratching one or more objects utilizing biochar; and/or abrading one or more objects utilizing biochar. In some embodiments, polishing the one or more objects utilizing the biochar includes: combining water, the biochar, and the one or more objects; and/or tumbling the combined water, biochar, and one or more objects. The one or more objects may include one or more stones. The tumbling may occur for 72 hours or less. The tumbling may occur as a single step.