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Tom.Addiscott@ukf.net

C.V.

1963	Graduated in Chemistry from Oxford University. Member of Hertford College.
1963-1964	Chemistry Part II. Research on soil phosphate in the Soil Science Laboratory at Oxford.
1964-1965	Volunteer in Tanzania with UNA International Service, working on phosphate in soils in North West Tanzania.
1965-1966	Advisory chemist with Lawes Chemical Company, Creeksmouth, Barking, Essex. (Fertilizer Manufacturers)
1966-2002	Rothamsted Experimental Station, Harpenden, Herts. Research topics during the 35½ years included: Potassium quantity: intensity relations Potassium release from soils Effects of potassium on the uptake and distribution of other nutrients in potato plants. (PhD topic) Slow-release nitrogen fertilizers Computer modelling of solute leaching in soils. The SL3 and SLIM models Measurement and modelling of the mineralization of organic nitrogen and the nitrification of ammonium Estimation by modelling of nitrogen availability to crops. The SACFARM model Model evaluation The 'Sectioning method' for using models with parameters subject to statistical error Scale problems in modelling The interaction between model non-linearity and parameter error Phosphate losses from the Brimstone Farm experiment Modelling the sorption and loss of phosphate. The PSALM model Possible implications of Chaos and Complexity Theory for soil science

Sir John Bennet Lawes founded both the Lawes Chemical Company and Rothamsted Experimental Station. This punch cartoon was published when he sold the company for £300,000. £100,000 of this went into the Lawes Agricultural Trust, set up to fund the research station.