Abstract: Novel metal complexes useful in the area of agriculture, notably as agents for treating metal deficiency. The novel metal complexes comprise at least one metal selected from the metal trace elements essential for the development of plants, at least one first ligand selected from the lignosulfonates, and derivatives thereof, and at least one second ligand selected from the multidentate organic ligands.

Abstract: The present invention relates to novel metal complexes comprising: at least one metal selected from the metal trace elements essential for the development of plants; at least one first ligand selected from the lignosulfonates, and derivatives thereof; at least one second ligand selected from the multidentate organic ligands. These complexes are useful in the area of agriculture, notably as agents for treating metal deficiency.

Abstract: Heteromolecular metal-humic organic complexes of the type: (A)n-(Metal)x-(B)m where A is one or several humic complexes which may be totally or partially sulfonated or may have been treated with an amine in order to protect the carboxylic groups from interacting with polyvalent cations, and B is a non-humic complexing (organic chelating agent) compound, the biological and chemical stability whereof allows for protection of the metal and the multitoothed or multi-valent molecule involved in the complex against degradation phenomena, both chemical and microbiological, having the beneficial effect of humic acid, as an effective plant growth and nutrition stimulant and as a metabolic and immune system activator in animals and humans.

Abstract: Heteromolecular metal-humic organic complexes of the type: (A)n-(Metal)x-(B)m where A is one or several humic complexes which may be totally or partially sulfonated or may have been treated with an amine in order to protect the carboxylic groups from interacting with polyvalent cations, and B is a non-humic complexing (organic chelating agent) compound, the biological and chemical stability whereof allows for protection of the metal and the multitoothed molecule involved in the complex against degradation phenomena, both chemical and microbiological, having the beneficial effect of humic acid, as an effective plant growth and nutrition stimulant and as a metabolic and immune system activator in animals and humans.

Abstract: The object of the present invention is a new set of formulations with the potential to increase the efficiency of a plant's assimilation of nutrients both in normal conditions and in conditions of nutrient deficiency. It is especially effective in the case of iron assimilation in conditions of deficiency of this micronutrient, by improving and potentiating a plant's specific response to iron deficiency, increasing the plants capacity to mobilize and assimilate the iron present in non-assimilable forms.