A single-step method for preparing a free-flowing, non-dusting micronutrient-coated particulate solid fertilizer material, the method comprising applying a single fluid onto particulate solid fertiliser material at ambient temperature without chemical reaction or chelation, said single fluid comprising a suspension of one or more micronutrient materials in an oil.

Disclosed herein are methods of increasing nitrogen fixation in a non-leguminous plant. The methods can comprise exposing the plant to a plurality of bacteria. Each member of the plurality comprises one or more genetic variations introduced into one or more genes or non-coding polynucleotides of the bacteria's nitrogen fixation or assimilation genetic regulatory network, such that the bacteria are capable of fixing atmospheric nitrogen in the presence of exogenous nitrogen. The bacteria are not intergeneric microorganisms. Additionally, the bacteria, in planta, produce 1% or more of the fixed nitrogen in the plant.

Disclosed herein are methods of increasing nitrogen fixation in a non-leguminous plant. The methods can comprise exposing the plant to a plurality of bacteria. Each member of the plurality comprises one or more genetic variations introduced into one or more genes or non-coding polynucleotides of the bacteria's nitrogen fixation or assimilation genetic regulatory network, such that the bacteria are capable of fixing atmospheric nitrogen in the presence of exogenous nitrogen. The bacteria are not intergeneric microorganisms. Additionally, the bacteria, in planta, produce 1% or more of the fixed nitrogen in the plant.

A coating is applied in one or more layers on a granular material, such as a granular fertilizer material or the like. The coating may include a diisocyanate in either pure form or partially polymerized form, a polyol or polyol mix, and optionally a wax. The polyol or polyol mix may be, for example, a polyester polyol, a polyether polyol, or combinations thereof. In some examples, the polyol or polyol mix may be an aliphatic glycerine initiated polyether polyol, an aliphatic amine initiated trifunctional polyol, castor oil or castor oil derivative, or ethylene diamine that has been propoxylated or ethoxylated, and combinations thereof. The coating is reacted on the granular material.

A method of preparing a fertiliser composition, the method comprising the steps of: (i) providing a digestate material; (ii) contacting the digestate material with a composition comprising carbon dioxide; (iii) contacting the material obtained in step (ii) with a source of nitrate and/or sulfate; and (iv) admixing the material obtained in step (iii) with urea.

The present disclosure relates to a method for controlling the temperature in a granulator in which a melt of an hydrous nitrate mineral salt-based composition is granulated. The method comprises the steps of granulating the melt, separating out the undersized and oversized particles at the outlet of the granulator and recycling the undersized and oversized particles to the granulator, measuring the temperature in the granulator, adjusting the amounts of undersized and oversized particles recycled to the granulator according to the measured temperature in the granulator. The present disclosure further relates to low dust producing uncoated granules of a hydrous nitrate mineral salt-based composition.

A method for continuous production of fully colored and non-colored fertilizer particles having a median size of about 1 to 6 mm, with a predefined ratio of the fully colored and non-colored fertilizer particles, starting from a stream A of non-colored fertilizer particles. The method includes continuously separating the stream A of non-colored fertilizer particles into a stream C of non-colored fertilizer particles and parallel streams B1, B2, . . . Bn of non-colored fertilizer particles in a predefined ratio, continuously coloring the non-colored particles from the parallel streams B1, B2, . . . Bn with a non-rub-off coloring agent, such that the particles become fully colored, continuously joining the parallel streams B1, B2, . . . Bn, including the fully colored fertilizer particles, with the stream C of non-colored fertilizer particles downstream, thereby obtaining the mixture of fully colored and non-colored fertilizer particles, and, optionally, processing the mixture of fully colored and non-colored fertilizer particles.

A method for continuous production of fully colored and non-colored fertilizer particles having a median size of about 1 to 6 mm, with a predefined ratio of the fully colored and non-colored fertilizer particles, starting from a stream A of non-colored fertilizer particles. The method includes continuously separating the stream A of non-colored fertilizer particles into a stream C of non-colored fertilizer particles and parallel streams B1, B2, . . . Bn of non-colored fertilizer particles in a predefined ratio, continuously coloring the non-colored particles from the parallel streams B1, B2, . . . Bn with a non-rub-off coloring agent, such that the particles become fully colored, continuously joining the parallel streams B1, B2, . . . Bn, including the fully colored fertilizer particles, with the stream C of non-colored fertilizer particles downstream, thereby obtaining the mixture of fully colored and non-colored fertilizer particles, and, optionally, processing the mixture of fully colored and non-colored fertilizer particles.

Disclosed herein are methods of increasing nitrogen fixation in a non-leguminous plant. The methods can comprise exposing the plant to a plurality of bacteria. Each member of the plurality comprises one or more genetic variations introduced into one or more genes or non-coding polynucleotides of the bacteria's nitrogen fixation or assimilation genetic regulatory network, such that the bacteria are capable of fixing atmospheric nitrogen in the presence of exogenous nitrogen. The bacteria are not intergeneric microorganisms. Additionally, the bacteria, in planta, produce 1% or more of the fixed nitrogen in the plant.

The present disclosure relates to an oxygenating and rooting water-soluble fertilizer compounded with biostimulant, prepared by the following raw materials in parts by weight: 10-30 parts of urea powder, 20-35 parts of industrial grade monoammonium phosphate powder, 30-40 parts of potassium nitrate powder, 1-5 parts of oxygenating agent powder, 1-10 parts of type I stabilizer powder, 1-5 parts of type II stabilizer powder, 2.5-10 parts of biostimulant powder, 1.5-4 parts of medium trace element powder, and 0.5-1 part of anti-hardening auxiliary agent powder. The synergistic effect between oxygenating function of the water-soluble fertilizer and compounded biostimulant on crop root systems effectively increases dissolved oxygen content of crop rhizosphere and promotes the aerobic respiration of the crop root systems.