Impetus®: A powerful biostimulant formulation designed to improve nutrient use efficiency and build resilience against abiotic stress

Impetus® was developed to help crops maintain growth and productivity under increasingly challenging environmental conditions. By combining IntraCrop’s award-winning MTU® technology with pidolic acid, amino acids and Ascophyllum nodosum seaweed extract, Impetus supports photosynthetic efficiency and nitrogen assimilation, two of the most stress-sensitive processes in plant physiology.

MTU® enhances Photosystem I activity and promotes Cyclic Electron Flow around PSI which reduces stress and age-related senescence while pidolic acid drives nitrogen assimilation and prevents the accumulation of toxic ammonia during stress. Amino acids and seaweed-derived bioactives further support recovery, rooting and nutrient uptake. Together, these components allow crops to perform closer to their non-stressed potential, even during periods of drought, heat or nutrient limitation.

How does Impetus® improve nutrient use efficiency?

Pidolic acid boosts nitrogen assimilation by stimulating the plant’s natural metabolism, encouraging the production of key amino acids like glutamic acid that are vital for growth and protein synthesis. It also increases physical root mass, expanding the surface area available for nutrient uptake. MTU® complements this by improving photosynthetic efficiency through enhanced cyclic electron flow, ensuring the energy required for nitrogen assimilation and growth is available even under stress.

How does Impetus® help crops tolerate and recover from stress?

MTU® protects the photosynthetic apparatus by routing excess electrons safely around Photosystem I, reducing oxidative damage and delaying age and stress-related senescence. Ascophyllum nodosum extract, which contains bioactive compounds like alginic acid, fucoidan and mannitol enable better stress recovery and protect crops against abiotic stress.

Which crops can Impetus® be used on?

Impetus® can be used on a wide range of crops, including: Cereals (GS 13–65), Oilseed rape (GS 30–69), Maize (GS 13–18), Sunflower (GS 13–18), Grassland (GS 21 onwards), Apples, cherries and grapevines (GS 70–79)

Information

Benefits

  • Improves nitrogen assimilation and nutrient use efficiency
  • Protects photosynthesis and delays age and stress-related senescence
  • Builds larger, more effective root systems
  • Supports faster recovery from drought and heat stress
  • Helps stabilise yield under variable seasonal conditions

Agronomic guidelines

  • Approved for use on all edible crops.
  • Impetus® is an NK fertiliser solution 3 – 0 – 12 soluble liquid formulation combined with plant biostimulants MTU (1-(2-methoxyethyl)-3-(1,2,3- thiadiazol-5-yl) urea) and pidolic acid, Aschophyllum nodosum extract, proline and betaine.
  • Always add Impetus® first to the spray tank
  • Broadacre crops: maximum single dose 0.75 L/ha, total 1.5 L/ha
  • Woody perennial crops: maximum single dose 1.5 L/ha, total 3.0 L/ha

Crop Types

Suitable for a wide range of agricultural and horticultural crops, including cereals, oilseed rape, maize, grassland, apples, cherries and grapevines.

Frequently asked questions

What are plant biostimulants and how are they developed?

Plant biostimulants are products that stimulate natural plant processes to improve nutrient use efficiency, stress tolerance, crop quality and yield, independently of the product’s nutrient content. They work by supporting plant physiology rather than by directly supplying nutrients or controlling pests.

Biostimulants are developed through a combination of laboratory research, controlled environment studies and field trials. Development focuses on understanding plant responses at a physiological and biochemical level, ensuring consistent performance across crops and growing conditions, and meeting regulatory requirements such as the EU Fertilising Products Regulation (FPR).

How do biostimulants improve nutrient use efficiency?

Biostimulants improve nutrient use efficiency (NUE) by supporting the plant processes that govern nutrient uptake, assimilation and utilisation. This can include enhancing photosynthetic efficiency, improving root development, stabilising metabolism under stress and supporting balanced carbon and nitrogen assimilation.

Rather than forcing uptake, biostimulants help plants make better use of available nutrients, allowing a greater proportion of applied fertiliser to be converted into biomass, yield and quality.

How do biostimulants help crops cope with abiotic stress?

Abiotic stresses such as drought, heat, salinity and nutrient limitation disrupt key physiological processes, often leading to reduced growth and premature senescence.

Biostimulants help crops cope with these stresses by protecting processes such as photosynthesis, supporting osmotic balance, improving rooting and helping plants recover more quickly once conditions improve. This allows crops to maintain productivity closer to their non-stressed potential during variable seasons.

What is the difference between microbial and non-microbial biostimulants?

Microbial biostimulants contain living microorganisms that interact with plants and soil to support nutrient availability or plant growth. Their performance can depend on soil conditions, temperature and microbial survival.

Non-microbial biostimulants, such as single-molecule compounds, amino acids or seaweed extracts, act directly on plant physiology. Their activity is not dependent on microbial establishment, which can make them more consistent across different soils and environments.

Both types can play valuable roles, depending on crop, conditions and agronomic objectives.

How does MTU® differ from other photosynthesis-supporting products?

MTU® is a patented, single-molecule biostimulant with a clearly defined mode of action. It acts directly on Photosystem I, enhancing cyclic electron flow and increasing ATP production while protecting the photosynthetic apparatus.

Unlike products that aim to stimulate growth indirectly, MTU® supports photosynthesis at its most sensitive control point, delaying chlorophyll degradation and senescence. This leads to sustained energy availability, improved nitrogen use efficiency and greater resilience under stress.

Can Impetus® be tank-mixed with crop protection products?

Impetus® has been formulated for compatibility within standard spray programmes and can generally be tank-mixed with crop protection products. However, as with all tank mixes, it is recommended to follow label guidance, conduct a jar test where appropriate and consider application timing and water quality.

Local regulations and product labels should always be followed.

How should Impetus® be positioned within a fertiliser programme?

Impetus® should be positioned as a complement to fertiliser programmes, not a replacement. It supports nutrient use efficiency by protecting photosynthesis and nitrogen assimilation, helping crops make better use of applied nutrients.

This makes it particularly valuable in situations where nutrient availability is limited, inputs are being optimised or crops are exposed to abiotic stress.

How can I become an IntraCrop distributor?

If you are interested in becoming an IntraCrop distributor, please contact us directly via the website. Our team will discuss market opportunities, technical support, regulatory considerations and how a partnership with IntraCrop could work in your region.

Find out more about Impetus