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Enhanced crop nutrition

NHK Delta is a stabilised nitrogen fertiliser with potassium for improved rooting, stress tolerance, crop quality and yield production. Ideal for arid or semi-arid soil with high pH as well as saline soils with high levels of sodium or where irrigation is poor, NHK Delta can deliver improved yield quality and fruit uniformity as well as extending the productive life of the crop. NHK Delta is sold exclusively by Bionature in the UK.


Using the stabilised amine nitrogen in NHK Delta, plants can absorb the correct proportions of nitrogen they need, stimulating root development and aiding the growth or fruit and flowers while avoiding excessive vegetative growth. Bionature’s Delta products improve the bio-availability in the soil without the need for artificial bactericides or bacteriastats.


NHK Delta enhances potassium absorption without interfering with calcium and magnesium update, which helps to improve growth in saline soil. All Delta fertilisers are non-phytotoxic and can be used as foliar or soil-applied fertilisers and they can be stored for long periods without gaseous breakdown. NHK Delta is available in pack sizes of 20 litres or 1000 litres.

a fertilised potato field


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See our full range of crop recommendations here

NHK Delta

Low environmental impact

All of our products are gentle on the farm environment. Because soil retention is that much higher with NHK Delta, lower use rates are required and so application dosages and frequency are kept to exactly what’s needed.

Improves yield, quality and fruit homogeneity

Stronger, more balanced cytokinin plant growth from the start, as well as stronger, healthier crops at the end. NHK Delta can also extend the life of your crop, giving you more productive land for longer.

Speeds up metabolic activity and growth
Speeds up metabolic activity and growth in comparison with other conventional fertilisers. NHK Delta is biologically stable and 100% plant available.
Highly efficient form of amine nitrogen (NH2)

Acting in this way, plants absorb the correct proportions of nitrogen to obtain optimum yield and quality, stimulating the rooting processes and flower and fruit development while reducing excessive vegetative growth generated by conventional nitrogen products.

Enhances potassium absorption

Enhances potassium absorption but without interfering with calcium and magnesium uptake – which improve growth in saline soils. NHK Delta also gives plants greater photosynthetic ability


“I’ve always prided myself on pushing yields further, but as a farmer it’s all about returns in the end. We use Bionature and I’ve never seen pod size and density like it.”
Tim Lamyman, Lamyman Worlaby Farms