GP Finale 10-5-20

GP Finale 10-5-20

GP SPORT • UF PREMIUM TECHNOLOGY • AUTUMN FERTILISER

Professional autumn fertiliser with high potassium and magnesium for winter turf hardening

Short description: product section

GP Finale 10-5-20 is a professional autumn fertiliser for winter hardening before dormancy and support during high summer temperatures. Exceptionally high potassium (20 % K₂O), magnesium (4 % MgO) and increased sulphur trioxide (16 % SO₃) strengthen mechanical and physiological resistance, improve water-stress tolerance and reduce susceptibility to autumn-winter fungal diseases. UF nitrogen (urea formaldehyde) provides stable, regulated nutrition for up to 2 months.

The product is designed for professional care of sports pitches, golf courses and intensively used green spaces, as well as high-quality prestigious, ornamental and domestic lawns.

Key properties

Professional autumn fertiliser, key to winter hardening;

Highest potassium in the GP Sport line (20 % K₂O) strengthens resilience;

Increased magnesium (4 % MgO) for chlorophyll synthesis and energy metabolism;

High sulphur trioxide (16 % SO₃) supports efficient nitrogen use;

UF nitrogen (urea formaldehyde): regulated, gradual release;

Reduced nitrogen (10 % N), appropriate to the season's final phase;

Also suitable for summer application during heat and drought;

Reduces susceptibility to autumn-winter fungal diseases;

Effective for up to 2 months after a single application.

Autumn fertiliser: winter hardening of the sward

GP Finale addresses a key stage in professional turf's annual cycle: preparation for winter dormancy. NPK 10-5-20 follows a fundamental principle: in autumn, build resilience rather than increase growth.

Exceptionally high potassium (20 % K₂O), the highest in GP Sport alongside GP NK, has key physiological roles in winter preparation:

Water balance regulation: potassium controls stomatal opening and closure, reducing water loss during frosty, windy periods;

Cell structure strengthening: high potassium increases cell-wall thickness and soluble carbohydrates, lowering cell sap's freezing point;

Fungal disease resistance: potassium-sufficient swards better tolerate autumn-winter pathogens (Microdochium nivale, Typhula spp.);

Stem mechanical strength, important during increased use at the end of the season.

Reduced nitrogen (10 % N) is a deliberate agronomic choice. Excessive autumn nitrogen creates soft, frost-sensitive tissue and greater disease susceptibility. GP Finale supplies an appropriate late-season quantity, part bound in UF form (urea formaldehyde) for stable, regulated release.

Its distinctive feature is synergy between magnesium, sulphur and potassium. Magnesium (4 % MgO), central to chlorophyll, maintains photosynthesis as temperature and daylight decline. Sulphur trioxide (16 % SO₃) participates in structural protein and sulphur-containing amino acid synthesis, strengthening stress tolerance.

It also performs during summer heat: high potassium and magnesium support turf under water and heat stress and reduce susceptibility to physiological disorders associated with high temperatures.

How does UF technology work?

UF technology (urea formaldehyde), known in German as Formaldehydharnstoff, is an advanced nitrogen form with slow, controlled release.

Part of GP Finale's nitrogen (2.5 % N) is bound in long polymer chains synthesised from urea and formaldehyde. Soil bacteria and fungi gradually break them down, releasing plant-available nitrogen at a rate governed by microorganism activity, soil temperature and moisture.

UF nitrogen in GP Finale includes two subfractions:

Cold-water-soluble nitrogen (CWS, 1.0 %): medium-speed availability;

Hot-water-soluble nitrogen (CWIN/HWIN, 1.5 %): long-term nitrogen reserve.

This supplies nitrogen at a rate matching turf demand without growth surges, particularly important in autumn when excessive tissue growth weakens frost resistance.

Application results

Strengthens grass resistance before winter dormancy;

Reduces susceptibility to autumn-winter fungal disease;

Improves water balance during summer heat and frosty winter winds;

Stable long-term nutrition for up to 2 months;

Reduced nitrogen losses through leaching and emissions;

Intensive colour maintained to the end of the growing season;

Predictable agronomic results throughout the effective period.

Applications

Autumn winter-hardening before dormancy;

Summer support during high temperatures and water stress;

Sports and golf turf fertilisation at the end of the playing season;

High-quality football pitches, golf courses, prestigious, ornamental and utility turf.

GP Finale: application and parameters

Application rate and coverage (25 kg)

Application instructions

Calculate the area to be fertilised and measure the appropriate quantity of fertiliser at the chosen application rate.

Spread evenly on dry turf, preferably using a calibrated spreader.

Avoid overlapping spreading passes and locally exceeding the rate.

After application, water the turf to initiate dissolution and

Make the final autumn application before soil temperature falls below 8 °C, usually late September or October in central Europe.

During summer heat, apply preventively before forecast high temperatures to strengthen heat-stress resistance.

Do not apply during prolonged drought without irrigation, or to frozen or waterlogged soil.

On larger areas, two passes in a cross pattern are recommended to distribute the granules evenly.

After autumn application, avoid intensive use until irrigation or rainfall occurs.

Application conditions

Do not apply during frost, drought or strong sunlight. Do not exceed the recommended rate. Adjust programme intensity to grass type, soil conditions and use level.

Declared composition

Role in the GP Sport programme

GP Finale closes the annual professional GP Sport programme:

New establishment / overseeding / turf laying → GP Starter: high phosphate, rooting, up to 6 weeks

Spring / summer / autumn → GP Klassik: universal seasonal fertiliser, colour, up to 3 months

All season → GP Allround: balanced NPK formulation + trace elements, up to 3 months

Summer / early autumn (Poa annua selection) → GP NK: phosphate-free, up to 3 months

Late autumn (winter hardening) → GP Finale: highest potassium with magnesium, up to 2 months

Frequently asked questions

When should GP Finale be applied? Two optimum windows exist. The main one is autumn, the final feeding before soil temperature falls below 8 °C, usually late September or October. The second is summer heat: apply preventively before forecast high temperatures to strengthen heat-stress resistance.

Why only 10 % nitrogen? Excessive autumn nitrogen creates soft, frost-sensitive tissue and greater autumn-winter fungal disease susceptibility. GP Finale supplies appropriate late-season nitrogen while focusing on potassium and magnesium for resilience.

When should GP Finale or GP NK be chosen? Both have 20 % potassium but differ in profile and use. GP NK contains 15 % N including UF and iron, for summer, early autumn and Poa annua selection. GP Finale has 10 % N and higher magnesium (4 %), optimised for winter hardening and summer heat support.

How does GP Finale affect frost resistance? High potassium increases cell-wall thickness and soluble carbohydrate content, lowering cell sap's freezing point. This raises natural tolerance of low temperatures and wind-driven tissue dehydration in winter.

How soon does it work? Initial effects appear in the first days through available ammonium nitrogen. UF nitrogen is then released over up to 2 months, supporting turf throughout autumn hardening.

Is GP Finale suitable for domestic lawns? Yes, as the final autumn feeding on prestigious and domestic lawns, especially where good winter preparation and the original appearance next spring are valued.

Can GP Finale be used in summer? Yes, one of its two official application windows. During summer heat, high potassium and magnesium support turf under water and heat stress and reduce susceptibility to high-temperature physiological disorders.

Declaration and application instructions

Ingredients:

Potassium chloride1 (CAS No. 7447-40-7); calcium carbonate1 (CAS No. 471-34-1); ammonium sulphate11 (CAS No. 7783-20-2); methylene urea8 (CAS No. 9011-05-6); monoammonium phosphate1 (CAS No. 7722-76-1);

1 CMC 1: Stoffe und Gemische aus unbearbeiteten Rohstoffen

8 CMC 8: nutrient polymers; 11 CMC 11: by-products within the meaning of Directive 2008/98/EC

Directions for use:

Apply only where a recognised need exists. Do not exceed the application rate.

Spread 30-50 g/m² per application and water in.

Recommended storage conditions:

Store only in original packaging; close opened containers tightly. Do not allow into drains or watercourses. Long-term storage temperature: +2 °C to +30 °C. Avoid major temperature fluctuations and direct sunlight. Keep out of reach of children and pets.

Safety and environmental information:

EUH210: Safety data sheet available on request.