Diet Certifications Van Iperen WS NPKs are prime high quality blends made from the purest Uncooked components, with constrained caking sensitivity and with higher level EDTA-chelated micro-nutrients for fertigation or foliar software.???????? ??? ???? ???????? ??? ???? ????? ?????? ?????????????? ???? ??? ??? ???? ?? ??? ???? ? ????? ???? ??? ????