NPK FN1 (10:6:20:3 3+5% AJIB) is a type of fertilizer with complete and balanced macro and micro nutrients specially formulated for the nutritional requirements of oil palms in tropical soils. In addition, selected micro nutrients (in the AJIB formulation by Universiti Putra Malaysia) not only increase the weight of fresh fruit bunches (FFB) but also stimulate the lignification process in oil palm trunks and roots.
This process is a form of natural mechanical control in the palms to reduce Ganoderma disease infection. A 3-year census survey report (2011-2013) conducted at Serting Plantation indicated that the block that received AJIB fertilizer had recorded a lower incidence of Ganoderma disease infection by as much as 50% compared to the block that received ordinary fertiliser. A 2006 report on a 6-year Espek study (2002-2008) conducted at Palong Estate indicated that the use of AJIB fertiliser had contributed to 20-25% increase in FFB yield through increases in bunch weight and the number of palm fruit bunches.