7_3_rec

N – requirements should be covered by Leguminosae, (biological N-fixation), to the largest possible extent while preventing any danger of leaching and taking into account possible effect on augmenting soil borne damaging organisms.

The total amount of available nitrogen in organic fertilisers should be accounted for a period of 3 years.

The use of slow release fertilizers can contribute to minimize nutrient losses and increasing nutrient availability during the period that they are most needed.