The environment Data System (EDS) developed by PORIM is used for making initial fertilizer recommendations and to predict oil palm yield response curve from site data from which the optimum yields can be deduced. The optimum yield is defined as the yield level above which response to fertilizer is not profitable. With the aid of a computer programme, the above calculations are easily computed and thus the system will guide the user on the expected yield profile and the predicted fertilizer requirements.

Main Researcher: A Tarmizi Mohammad