Same products, same quality new design.

Products

Nutrition that pays off

FertiSoil 4-3-3
Solid fertilizer, formerly known as FertiPlus 4-3-3

Maximize your yield, minimize your footprint

This product is a biostimulant, formaly known as Fulvic+ or Fulvic 25

For every application a matching product or solution

Pellets

Discover how our pellet products can enhance your cultivation.

Granules

Explore our granular solutions for optimized soil health.

Powder

See how our powder range can boost the vitality of your crops.

Liquid

Dive into our selection of liquid products for immediate nutritional support.

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A one-stop shop

GrowSolutions is a one-stop shop where one can go to one point of contact for all services, expertise and product(application) regarding soil improvement, liquid fertillizers and biostimulants.
With a wide array of solutions for different kinds of challenges.

Ferm O Feed and PHC merged into GrowSolutions

Combining forces Den Ouden Ferm O Feed has been part of Den Ouden for nearly thirty years, PHC since 2021. Both divisions specialize in soil improvement and fertility and offer solutions to stimulate plant growth. Ferm O Feed develops organic fertilizers and biostimulants and distributes them to 75 countries worldwide. PHC is a specialist and leader in mycorrhizal technology and soil biology. The knowledge organization supplies plant fertilizers, beneficial soil fungi and bacteria that make soil and plants resilient and better functioning.

We are now combining the strengths of two similar organizations into one powerful team.

About us

Support

We are a partner for lasting success, improving every day. Trust forms the foundation of our collaboration. Thanks to our network of global experts, we offer support tailored to your cultivation needs and challenges. Contact us to see how we can support you.

Contact

For 75 years

we've dedicated ourselves to healthy soil. future generations. a sustainable world.

Discover Den Ouden

Trusted by farmers in more than 75 countries

“

Thanks to the use of FertAmino 7-2-2, I see not only a balanced nutrition for my crops, but also a remarkably greener crop even during dry periods. This product seems to promote the growth and development of my crops, significantly improving my crop in these conditions
PetruPotato farm, Ploiești

“

I see positive results thanks to FertiSoil 4-3-7 in my olive cultivation here in Spain. My olive trees show better vitality, and there is a noticeable increase in yield. FertiSoil 4-3-7 has proven to be a practical supplement that contributes to good growth of my olive trees.
Luis SanchezOlive Farm, Spain

“

With PlantMax in my grapes crop, the addition of more calcium seems to have a positive impact on resilience to abiotic stress. This product contributes to better protection of my grape trees, so they seem to be more robust and resilient under various conditions.
AhmetGrape farm, Turkey

“

I have noticed some improvements from using FertiSoil 4-10-2. Not only does it seem to increase yields, but I also see an improvement in the phosphate content of my crops. FertiSoil 4-10-2 has proven to be a useful additive that has contributed to a more stable crop.
Carlos AzevedoOlive farm, Portugal

part of

Den Ouden

For future generations.