Sequestering Agent for Micronutrient Fertilisers
AssigneeAdelaide Research & Innovation Pty Ltd
InventorsMike McLaughlin, Samuel Stacey, Enzo Lombi
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Abstract
According to the present invention, there is provided a method of sequestering micronutrients when used to provide the micronutrients to a plant, which comprises applying to an area of the plant or soil/substrate surrounding the plant an effective amount of a plant fertiliser composition comprising a surfactant, such as general formula (III), that is capable of forming coordinate bonds with micronutrients.
Claims26
A method of increasing the uptake of micronutrients by a plant which comprises applying to an area of a plant, or soil/substrate surrounding the plant, an effective amount of a plant fertiliser composition comprising a surfactant capable of forming coordinate bonds with the micronutrients, the surfactant transporting the micronutrients across a membrane of the plant and releasing the micronutrients for use by the plant.
The method of claim 3, wherein R1═(C3-C6) cyclic alkyls or (C1-C10) alkyls, each of which may be interrupted by one heteroatom selected from the group consisting of O, S and N;
- R2═H, (C1-C10) saturated, mono or polyunsaturated alkyl or (C3-C6) cyclic alkyls, and R3═H, (C1-C10) saturated, mono or polyunsaturated alkyls, (C3-C6) cyclic alkyls, or Na, Ca, Mg or K.
A plant fertilizer including one or more rhamnolipids with the general formula (III):
- wherein R1═H, unsubstituted α-L-rhamnopyranosyl, R2═H, (C1-C10) saturated, mono or polyunsaturated alkyl, R3═H, (C1-C10) saturated, mono or polyunsaturated alkyl, —CHR4—CH2CO2R6, where R4=—(CH2)x—CH3, wherein x=4-10 and R6═H, Na, Ca, K.
A plant fertiliser composition including a surfactant capable of forming coordinate bonds with soil micronutrients and transporting the coordinated micronutrients across a membrane of the plant and releasing the micronutrients for use by the plant, when used to increase the rate of micronutrient uptake by the plant.
Dependencies are inferred from the claim text.