Organic Fertilizers

Simonis Fertilizers B.V. develops, produces and exports high quality organic fertilizers.

Our organic fertilizers

Simonis Fertilizers B.V. producers and offers a wide range of (certified) organic fertilizers.

Regular fertilizer

Our AGROGOLD® NPK 4-3-2, organic fertilizer is OMRI-listed ( OMRI stands for Organic Materials Review Institute. It is a non-profit organization which supports organic integrity by developing clear information and guidance about materials. Its goal is to make sure to support the growth and trust of the global organic community through expert, independent and transparent verification of input materials, and through education and technical assistance.

Our AGROGOLD® NPK 4-3-2, biological fertilizer is produced and distributed by us, and has been subjected to OMRI oversight, which indicates that it is reviewed against the organic standards.

For more information on our AGROGOLD® NPK 4-3-2, organic fertilizer please see our ‘Regular fertilizer’ page.

Certified organic fertilizers

We have certified several other organic fertilizers to the Control Union Certifications Standards

 (, based on EEC 834/2007 and 889/2008, which means that they are suitable for and allowed in biological farming. The production is controlled by the Dutch certification organisation ‘Control Union Certifications’. The C.U.C. license number of Simonis Fertilizers B.V. is: CU 855781.

Please have a look at the overview of our ‘Certified Organic Fertilizers’.


Our organic fertilizers can be supplied in strong polyethylene bags of 10 Kg., 15 Kg., 25 Kg. or 50 Kg., in Big Bags of various net weights and in bulk. Our organic liquid fertilizers can be supplied in bottles of 1 Lt., in jerry cans of 10 Lt. or 20 Lt. or in IBC’s of 200 Lt. or 1000 Lt.

Please contact us for more information on our organic fertilizers.

Why use our organic fertilizer?

With our wide range of organic fertilizer, we respond to the increasing global demand for fertilizers of natural origin. The raw materials of our products are either of animal or vegetal origin, or a combination of both. These ingredients are processed into pellets, granules, crumbs, or mixtures.

Our biological fertilizers are produced in conformity with the EU regulations 1069/2009, which means that:

– the production locations are under control of the Dutch Food and Consumer Product Safety authority (NVWA –;
– the produced fertilizers are free from Salmonella and Enterogerms and the formation of spores and toxins is restrained;
– during storage at the production unit there is no chance of contamination, polluting, or moistening of the fertilizer. 

This means that processed organic fertilizers are, unlike fresh manure, of a high, constant and verifiable quality.