Chelating agents for micronutrient fertilisers

摘要

Disclosed is a method of providing micronutrients to a plant, which includes applying to an area of the plant or soil/substrate surrounding the plant an effective amount of a plant fertiliser composition comprising a chelating polymer co-ordinately bonded to a micronutrient to form a chelate, the chelate transporting the micronutrient across a membrane of the plant and releasing the micronutrients within the plant for use by the plant, wherein the chelating polymer is a polythiol or polyamine, preferably having the structure of formula (I) wherein the variables are as defined in the specification.