Frequently asked questions (FAQ) about boncrop

Do you have questions about boncrop and our innovative products for plant cultivation? Here you will find the most important answers about application, benefits and background information. Whether it's about the right dosage, sustainable agriculture or scientific findings - we provide you with all the relevant information.

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General questions

Answers to fundamental questions about boncrop, biostimulants and their role in agriculture.

Biostimulants are substances, usually of natural origin (e.g. plant extracts). They stimulate natural processes in plants and thus promote their development, growth and resistance to abiotic stress factors such as drought, wetness or nutrient deficiency. Biostimulants are neither pesticides nor fertilisers.


Biostimulants strengthen the plant from the inside. They promote root development, improve water and nutrient uptake and make plants more resistant to stress such as drought or heat. boncrop activates the hormone balance and photosynthesis performance, among other things.

Read more about the effects and benefits of biostimulants.


No - biostimulants are not substitutes, but supplements to fertilizers and pesticides. They do not contain traditional nutrients or active substances against pests, but activate biological processes in the plant. However, their use can help to increase the efficiency of fertilizers and make plants more resistant to stress.


boncrop products are based on the brown algae Ascophyllum nodosum. They contain its valuable algae digestion, Trichoderma and plant amino and humic acids. This combination promotes the plant's own resistance, improves root formation and increases yields.


boncrop biostimulants are suitable for a wide range of field crops, including maize, cereals, rapeseed, potatoes, sugar beet, soya and sunflowers. They can be applied easily, efficiently and sustainably to various crops.


boncrop offers two main products:

  • boncrop flow: Liquid formulation for foliar spraying.
  • boncrop solid: Granulated formulation that is applied with the seed, for example in maize cultivation.

Ingredients of boncrop biostimulants

These natural ingredients are found in boncrop biostimulants.

Ingredients boncrop flow:

  • Completely digested algae
  • Selected amino acids
  • High-quality humic acids

Ingredients boncrop solid:

  • Completely digested algae
  • Trichoderma
  • Boron and zinc

These substances, rich in humic compounds, chelate nutrients, stimulate soil life, improve nutrient uptake and help reduce stress. They therefore make a significant contribution to crop yield and plant quality.


No. boncrop requires no nutrient balance: it does not supply phosphorus or nitrogen in significant quantities, but acts solely through biological stimulation.


Application of boncrop biostimulants

Practical information on the application, dosage and possible uses of our boncrop products in field crops.

boncrop products can be used easily, efficiently and sustainably in all field crops.


  • boncrop flow: Liquid formulation for foliar spraying with an application rate of 2 litres/ha. It can be combined with common plant protection products, but a prior mixing test is recommended. To the mixing test.
  • boncrop solid: Granulated formulation that is applied with the seed at an application rate of 125 kg/ha, for example in maize cultivation.

Yes, boncrop flow is listed in the list of inputs for organic farming in Germany and is therefore suitable for organic farming. boncrop solid, on the other hand, is only used in conventional farming.


No. Biostimulants do not provide any relevant nitrogen themselves. They improve nutrient utilisation and can thus reduce the fertiliser balance, but they do not replace mineral fertilisation tailored to specific needs – this must continue to be planned individually for each farm.


Yes. The patented Trichoderma strain remains active even in humus-poor sandy locations and in acidic soils down to pH 4, where it promotes root and soil life.


Our products must be stored in a cool, dry and frost-free place and must always be kept out of the reach of children and pets. Avoid mixing with animal feed. For product-specific instructions on proper storage, use (e.g. dosage, procedure, time of application) and safety-relevant aspects, please refer to the labelling of the respective product.


Visual differences – stronger leaf green, denser stands – usually become apparent from BBCH 30 onwards. Initial increases in root mass and chlorophyll can be measured a few weeks later.


Exact trials with boncrop products have shown demonstrable stimulating effects on plants in terms of crop development, growth and stress resistance.


Trichoderma & Soil Biology

Answers regarding Trichoderma as a biological agent, its role in the soil and its use in boncrop solid.

Trichoderma is a naturally occurring soil fungus that is active in the root zone of plants, where it supports soil biology and root growth.


Trichoderma is particularly beneficial when plants need to be strengthened at an early stage, for example when they are under stress due to cold, drought or limited nutrient availability.


Trichoderma is particularly suitable for field crops such as maize, cereals and grassland, where strong early growth and a well-developed root system are crucial.


Trichoderma forms part of a biostimulant programme and does not replace either fertilisation or plant protection. boncrop solid with Trichoderma is not subject to accounting requirements and falls under the EU Fertiliser Products Regulation.


Trichoderma is included exclusively in the product boncrop solid, where it is specifically formulated for use in the soil.


Yes. The strain remains active in soils with a pH of 4 to 8 and supports plants in acidic, neutral and alkaline conditions. This means that even light sandy or peaty soils can benefit from the biostimulant.


Legal issues

Important legal background information on biostimulants and the use of our products in agriculture.

Biostimulants have been officially recognized as an independent product category under the EU Fertilizer Products Regulation (EU) 2019/1009 since July 2022. They belong to the product function category PFC 6 - plant biostimulants. In contrast to plant protection products, they are not subject to the Plant Protection Regulation (EC 1107/2009) as they do not have a pesticidal effect. Biostimulants such as boncrop meet certain quality and efficacy characteristics and are CE-compliant.


As a CE-marked PFC-6 product, boncrop does not contain any active ingredients with maximum residue limits. The EU Fertiliser Products Regulation therefore does not require any waiting period.