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US 6,387,147 B2Granted
Fertilizer composition
AssigneeKao Corporation
InventorsMasaharu Hayashi, Tadayuki Suzuki, Kazuhiko Kurita, Masatoshi Kamei, Katsuhiko Yamaguchi
Life of this patent
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Abstract
The present invention provides a fertilizer composition which enables the efficient absorption of a fertilizer such as calcium. Namely, the present invention provides a fertilizer composition comprising a specific anionic surfactant or a hydrophilic nonionic surfactant and a fertilizer as the essential components.
Claims26
A method of fertilizing a plant with a calcium containing fertilizer, comprising:
- applying a fertilizer composition, comprising:
- 0.1 to 30% by weight of (A) at least one anionic surfactant selected from the group consisting of carboxylic acid surfactants, sulfuinc ester surfactants, phosphoric ester surfactants and naphthalenesulfonic acid surfactants or at least one hydrophilic nonionic surfactant;
- 1 to 60% by weight of (B) a calcium containing fertilizer, wherein the calcium concentration in the composition in the form of an aqueous solution, an aqueous dispersion or an emulsion is 1 ppm to 1% by weight;
- and
- 0.01 to 10 wt. % of (C) an organic acid, exclusive of heptonic acid, or a salt thereof, to the roots of a plant, thereby effectively fertilizing the plant with the calcium containing fertilizer.
2 more elements
A method of improving the absorption efficiency of a calcium containing fertilizer by a plant, comprising:
- applying a fertilizer composition comprising:
- 0.1 to 30% by weight of (A) at least one anionic surfactant selected from the group consisting of carboxylic acid surfactants, sulfuric ester surfactants, phosphoric ester surfactants and naphthalenesulfonic acid surfactants or at least one hydrophilic nonionic surfactant;
- 1 to 60% by weight of (B) a calcium containing fertilizer, wherein the calcium concentration in the composition in the form of an aqueous solution, an aqueous dispersion or an emulsion is 1 ppm to 1% by weight;
- and
- 0.01 to 10 wt. % of (C) an organic acid, exclusive of heptonic acid, or a salt thereof, to the roots of the plant, thereby effectively improving the absorption efficiency of the calcium component of the fertilizer as the fertilizer is absorbed by the plant.
2 more elements
Dependencies are inferred from the claim text.