A 3280 m² lysimeter in integral drainage (SOLEPUR) received high rates (1000 m³.ha-1.y-1) of pig slurry during five consecutive years. This application resulted in a nutrient load of 24 t.ha-1 of total nitrogen, 8 t.ha-1 of total phosphorus and 16 t.ha-1 of total potassium. Consequently, the total nitrogen concentrations of the top soil increased from 1.7 gN.kg-1 to 3.5 gN.kg-1 which increased the soil nitrogen stock by more than 6 t.ha-1. Six years after the end of spreadings, part of the accumulated nitrogen was mineralised, the total nitrogen content in the first horizon decreasing from 3.5 gN.kg-1 to 2.5 gN.kg-1. Over six years, the apparent mineralised nitrogen stock was estimated to be 2.5 t.ha-1. During the same period, the nitrogen leaching losses accounted for 38 % of the soil-N released. Using this set of data, a rather crude predictive model for the fate of soil nitrogen was developed and used to calculate the time necessary for soil nitrogen to recess to original content. For phosphorus, soil analyses showed an accumulation of more than 6.6 t.ha-1 of extractable Dyer phosphorus during the over application period, which represents a recovery of more than 82 % of the phosphorus applied. A large part (80%) of pig slurry phosphorus applied was recovered in the top surface layer (0-20 cm). After the applications ceased, the extractable Dyer phosphorus contents hinted a possible migration from the top soil layer down to lower ones. No significant phosphorus concentrations in the drainage water were measured, which confirmed the strong phosphorus retention capacity of the soil. Potassium applied through pig slurry seemed to be equally distributed throughout the soil profile. Six years after the applications ceased, the amount of soil exchangeable potassium decreased, while potassium concentrations in drainage water remained high.