A process for producing a commercial soil additive comprises mixing a compost composition with elementary (raw) sulphur to form a mixed material and turning the mixed material until it is substantially homogenous and until there is microbial oxidation of elementary sulphur therein to at least one sulphate.

A process for producing a commercial soil additive comprises mixing a compost composition with elementary (raw) sulphur to form a mixed material and turning the mixed material until it is substantially homogenous and until there is microbial oxidation of elementary sulphur therein to at least one sulphate.

Disclosed is a stable fertilizer composition including: a sulfur-containing compound; and a reaction product of a potassium-containing compound and a humectant selected from the group consisting of polyhydric alcohols, esters of polyhydric alcohols, polyalkylene glycols, and hydroxylated carboxylic acids. One version of the fertilizer composition also includes a nitrogen-containing compound; a phosphorous-containing compound; and at least one more additional macronutrient or micronutrient. The macronutrient may be selected from the group consisting of calcium and magnesium, and the micronutrient may be selected from the group consisting of zinc, manganese, iron, copper, calcium, magnesium, cobalt, boron, nickel, and molybdenum. The fertilizer composition may be essentially free of chelated metals and chelated metal salts. Methods of using a solution of the fertilizer composition for supplying plant nutrients to a plant are also disclosed.

Disclosed is a stable fertilizer composition including: a sulfur-containing compound; and a reaction product of a potassium-containing compound and a humectant selected from the group consisting of polyhydric alcohols, esters of polyhydric alcohols, polyalkylene glycols, and hydroxylated carboxylic acids. One version of the fertilizer composition also includes a nitrogen-containing compound; a phosphorous-containing compound; and at least one more additional macronutrient or micronutrient. The macronutrient may be selected from the group consisting of calcium and magnesium, and the micronutrient may be selected from the group consisting of zinc, manganese, iron, copper, calcium, magnesium, cobalt, boron, nickel, and molybdenum. The fertilizer composition may be essentially free of chelated metals and chelated metal salts. Methods of using a solution of the fertilizer composition for supplying plant nutrients to a plant are also disclosed.

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 relates to a biomass composition comprising insect particles or worm particles. The insect particles are for example derived from larvae such as fly larvae, in particular larvae of the species black soldier fly. The insect particles are for example provided by grinding insects. The biomass composition comprises for example ground grain and/or tuber parts of a root vegetable. The invention also related to a method for providing a biomass composition comprising insect particles or worm particles. In addition, the invention relates to the use of the biomass composition in the production of fertilizer, biofuel, animal feed. Furthermore, the invention relates to such fertilizer, biofuel, feed, comprising the biomass composition.

The invention relates to a biomass composition comprising insect particles or worm particles. The insect particles are for example derived from larvae such as fly larvae, in particular larvae of the species black soldier fly. The insect particles are for example provided by grinding insects. The biomass composition comprises for example ground grain and/or tuber parts of a root vegetable. The invention also related to a method for providing a biomass composition comprising insect particles or worm particles. In addition, the invention relates to the use of the biomass composition in the production of fertilizer, biofuel, animal feed. Furthermore, the invention relates to such fertilizer, biofuel, feed, comprising the biomass composition.

Provided is a soil microbial regulator for enhancing plant stress resistance, which comprises the following components in parts by weight: 30-50 parts of coconut coir, 30-50 parts of Eucheuma, 10-30 parts of mushroom residue, 20-30 parts of Guayule and 0.4-1.6 parts of composite bacterial agent. The present invention uses discarded mushroom residue and coconut coir as raw materials, and Guayule and Eucheuma are added; under the action of composite bacterial agent, the raw materiels are fermented; the soil microbial regulator prepared by fermentation can adjust the soil structure, improve soil microbial structure, provide sustainable nutrition for crop growth, significantly promote crop growth, improve crop resistance to diseases and insect injury, effectively reduce crop incidence rate, enhance crop resistance, realize the purpose of increasing yield and income, and achieve high and stable crop yield.

Provided herein are complexes of ferrous (Fe.sup.2+) ion with pyruvate ion and with citrate ion, and methods of making such complexes. The ferrous complexes are useful, inter alia, for providing ferrous iron to plants in a stable form, e.g., for treatment of chlorosis and microbial infections, and for preparation of iron-fortified vegetables as foodstuffs. The ferrous complexes are also useful, inter alia, for providing ferrous iron to humans and other animals in a stable form, e.g., for treatment of iron deficiency, treatment of microbial infections and as topical antiseptics and sterilizing agents. Also provided are complexes of ferric (Fe.sup.3+) ion with pyruvate ion, and methods for making such complexes. The ferric complexes are useful, inter alia, for sustained release of ferrous iron to a subject such as a plant or animal.