Organic Fertilizers

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

What is the difference between traditional/conventional farming and organic farming?

Nowadays, it is a hot topic and an upcoming trend that farmers have to deal with. A question that they have to ask themselves: choosing for conventional farming or for organic farming? Since people become more and more aware of the importance of the environment and the impact it has on their everyday life, the demand from society, for organically produced products increases. 

Conventional farming is a way of growing and maintaining crops, as well as managing weeds and pests, by using “unnatural farming methods”, as for example: synthetic pesticides, herbicides and fertilizers. Contrary to conventional farming, there is organic farming. This way of farming relies on natural principles, as biodiversity and composting, in order to produce healthy food.

The main difference is that organic farming is, besides providing the essential nutrients for crop growth, especially focused on creating a suitable and healthy growing environment around and under the crops. It aims to build a rich soil ecosystem in a more natural way.

We can see a change in the agricultural sector, as the number of organic farms increases. Conventional farmers are increasingly focusing on “organic” techniques in order to reduce the use of pesticides and mineral fertilizers and to increase on-farm biodiversity, beneficial insects and soil conservation.

Why use organic fertilizers?

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

Our organic fertilizers are produced in conformity with the EU regulation 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.

Our organic fertilizers

Simonis Fertilizers B.V. 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, organic 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.