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Application Guideline CORDENKA® Growth 250 AC

Application Guideline CORDENKA® Growth 250 AC

Application Guideline CORDENKA® Growth 250 AC

Product catalog summary
Product Description
Cordenka® Growth 250 AC is a rayon-based twine designed for tomato cultivation. It is biodegradable, compostable, and helps eliminate microplastic pollution.

Approved Use and Testing
This product is suitable for use in glass greenhouses with controlled conditions. It supports tomato plants with fruit weights up to 90g. Users should avoid exposure to acids, alkalis, and conditions that promote fungal growth, as these can weaken the twine.

Acclimatization
Hooks with the twine should be attached to crop wires 24 hours before use to allow acclimatization to greenhouse humidity, which may cause slight shrinkage.

Moisture Influence
Moisture can reduce tensile strength and cause shrinkage. This should be considered when tying knots.

Connection of Cord and Plant
Two methods are recommended: using compostable clips or bowline knots. Bowline knots should be tied with enough slack to accommodate plant growth and cord shrinkage.

Cultivation Work
During growth, new plant growth should be tied in weekly using the twine or compostable clips.

Warnings
Avoid lateral force and contact with sharp edges. The twine is designed for one growing season, up to 12 months. Improper storage and exposure to moisture, UV, or chemicals can affect performance.

Liability
Cordenka guarantees product quality but limits liability to rectification, withdrawal, or reduction in case of deviations. Users are responsible for proper application, and Cordenka is not liable for consequential damages.
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Catalog excerpts

Application Guideline CORDENKA® Growth 250 AC-1

Application Guideline CORDENKA® Growth 250 AC Twine for the production of tomatoes with a fruit weight of about 40-90 g 1. CORDENKA® Growth 250 AC is made of rayon. Rayon is a cellulose filament material made from wood pulp and based on sustainable forestry. 2. CORDENKA® Growth 250 AC is biodegradable and can be chopped and composted together with the harvested plant stems at the end of the growing season. 3. With the use of CORDENKA® Growth, the entry of microplastics into the environment can be eliminated through twines during tomato cultivation. 1. CORDENKA® Growth has been developed for growing tomatoes in highly productive glass greenhouses and is approved for soilless cultivation on substrate under controlled temperature, humidity and crop protection conditions. 2. CORDENKA® Growth 250 AC has an average breaking strength of approx. 25 kg ex works and can thus support tomato plants with a fruit weight of up to 90 g over one growing season. For tomato cultivation, we recommend the use of twine wound on steel wire hooks. 3. When CORDENKA® Growth is used in conditions that may encourage the spread of fungal organisms, or other cellulose attacking organisms, especially those growing tomatoes in soil, or organic farming conditions, the strength of CORDENKA® Growth cords may decrease to the point where they break. 4. Please avoid exposing the twine to acids and alkalis, as this can cause a reduction of strength. 5. Our application guideline for approved use is based on our current state of knowledge and does not constitute an application guarantee for our product. Due to the range of possible different application conditions, the user must test the suitability of the material for his/her specific application on his/her own responsibility under the cultivation conditions on site. CORDENKA excludes any liability in this respect. We recommend attaching the hooks with the CORDENKA® Growth cord to the crop wire about 24 hours before tying the cord to the plant. • The free-fall area of the cord should be dropped during this step. • This allows the cord to acclimatize to the greenhouse conditions, especially to the prevailing humidity in the greenhouse. • The free-hanging cord will usually shrink by a few centimetres during this time due to moisture absorption. With increasing moisture, the tensile strength decreases and the cord shrinks slightly. • Normal greenhouse climate changes are not a problem due to the strength reserves of the cord. • However, if the cord becomes really wet, e. g. due to irrigation, wetting with spray liquid, dripping condensation water, or similar, it will continue to shrink to a certain extent as described above. • This must be taken into account when tying knots between the cord and the plant. Option 1: Initial connection of CORDENKA® Growth cord and plant using a clip: • We recommend the use of clips made from compostable moulded materials. Option 2: Initial connection of CORDENKA® Growth cord and plant using a knot: • If you tie the cord to the plant stems, we recommend fastening the plant by means of fixed loops (bowline knots). Image credits: Bowline.svg by Lucasbosch licensed under CC BY 3.0 See also: Video PALSTEK by Palstek • Bowline knots are easy and quick to tie with a little practice, see YouTube link. • Tie the bowline knots at the base of young tomato plants with enough slack. • To take into account the thickness growth of the stems of the young tomato plants as well as the wet-shrinkage tendency of the cord when in contact with water, we recommend a diameter of the bowline knot loop of 3-4 cm for common tomato varieties. • During plant growth, we recommend tying in new growth via winding with the CORDENKA® Growth cord (1-2 turns per week). • Alternatively, other compostable clips can be used to tie in new growth. Application Guideline CORDENKA® Growth 250 AC, 03.09.2026 www.cord

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Application Guideline CORDENKA® Growth 250 AC-2

WARNING Lateral force, e.g. from contact with sharp edges, can damage the twine. When defoliating the plant with a knife or harvesting the tomatoes with scissors, care must be taken to avoid contact between the knife or scissors and the guide string. CORDENKA® Growth and CORDENKA® Growth More Grip are designed for use during one growing season in a greenhouse, max. 12 months. The technical information is based on average values – actual values are subject to natural fluctuations and biological degradation. The performance of CORDENKA® Growth can be negatively affected by improper storage, exposure...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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