PDA
The PDA is an independent organisation, formed in 1984, to provide technical information and advice in the UK and Ireland. It is supported by ICL UK Sales and Cleveland Potash Ltd who supply the fertiliser market with a range of crop nutrition products.
The aim of PDA was originally to provide technical information to support correct use of potash in soils and plant nutrition, so that the amount used, and the timings of the applications, would be correct for the crops and grass being grown. This has now been extended to include advice on all macronutrients except nitrogen, i.e. potash (K2O), phosphate (P2O5), sulphur (SO3), magnesium (MgO) and calcium (CaO).
To achieve this, we produce a series of free advisory leaflets, newsletters, and this website. We provide training via meetings and conferences. Also, we support research and liaise with other organisations and Government. In particular we support the activities of advisors and the farm managers who are responsible for correct fertiliser practice on farms.
We believe that improving the way macronutrients are used on farms is a useful contribution to the success of farming and the environment.