Abstract: The present invention concerns a process for preparing a composite of porous material/compound/hybrid organic-inorganic material having a 2:1 lamellar structure, said hybrid material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2]??(I) wherein x is a number such that 0?x<1.2 and R represents a C1-C30 alkyl group, an aryl group, a (C1-C30 alkyl)aryl group or an O—(C1-C30 alkyl) group, it being possible for the alkyl group to be substituted with a group chosen from a phenyl, vinyl, aminopropyl or mercaptopropyl group, and said compound being chosen from the group constituted of at least one active substance and at least one microorganism and mixtures thereof the process comprising: a) the step of sol-gel synthesis of the hybrid organic-inorganic material having a 2:1 lamellar structure in the presence of the compound and of the porous material saturated with the compound; b) the recovery of the composite.

Abstract: The present invention relates to a method for encapsulating a compound selected from the group consisting of at least one active substance, at least one microorganism and mixtures thereof in an organic-inorganic hybrid material of 2:1 lamellar structure, said material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2]??(I) the method comprising: a) sol-gel synthesis of the organic-inorganic hybrid material of 2:1 lamellar structure in the presence of the compound; b) recovery of the compound encapsulated in the material of general formula I. It further relates to the compound encapsulated in an organic-inorganic hybrid material of 2:1 lamellar structure of general formula I, a composition comprising same and its use for fertilizing, feeding, stimulating growth and/or prophylaxis of plants and/or improvement of the physical, chemical and/or biological properties of the soil or of the culture substrate of plants.

Abstract: The present invention relates to a method for encapsulating a compound selected from the group consisting of at least one active substance, at least one microorganism and mixtures thereof in an organic-inorganic hybrid material of 2:1 lamellar structure, said material having the following general formula I: Nax[(Mg3)(Alx(RSi)4?x)O8+x(OH)2] (I) the method comprising: a) sol-gel synthesis of the organic-inorganic hybrid material of 2:1 lamellar structure in the presence of the compound; b) recovery of the compound encapsulated in the material of general formula I. It further relates to the compound encapsulated in an organic-inorganic hybrid material of 2:1 lamellar structure of general formula I, a composition comprising same and its use for fertilizing, feeding, stimulating growth and/or prophylaxis of plants and/or improvement of the physical, chemical and/or biological properties of the soil or of the culture substrate of plants.

Abstract: The present invention concerns a process for preparing a composite of porous material/compound/hybrid organic-inorganic material having a 2:1 lamellar structure, said hybrid material having the following general formula I: Nax[(Mg3)(Alx(RSi)4-x)O8+x(OH)2]??(I) wherein x is a number such that 0?x<1.2 and R represents a C1-C30 alkyl group, an aryl group, a (C1-C30 alkyl)aryl group or an O—(C1-C30 alkyl) group, it being possible for the alkyl group to be substituted with a group chosen from a phenyl, vinyl, aminopropyl or mercaptopropyl group, and said compound being chosen from the group constituted of at least one active substance and at least one microorganism and mixtures thereof the process comprising: a) the step of sol-gel synthesis of the hybrid organic-inorganic material having a 2:1 lamellar structure in the presence of the compound and of the porous material saturated with the compound; b) the recovery of the composite.