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Tyrifjord Golf Club – Product Testamonial

Impact granular fertilisers are a mainstay of our nutrition programme at Tyrifjord Golf Klubb. We have used Impact fertilisers for many years, on our greens, tees and fairways.

For the last couple of years, we have started the season with Impact Accelerate 14-0-12. Coming out of the cold and snow-covered winters in Norway, it is important for us to give the turf a fighting chance at the beginning of the growing season. By using Impact Accelerate at 20g/m² on the greens at the start of the season, we’re able to get some early season growth along with a fantastic rich green colour despite the still relatively low temperatures.

On our fairways, we have used Impact CGF 26-5-8 for over 7 years. It’s the 1st product to be added to our fertiliser order every season. The Impact CGF 26-5-8 is applied at 30g/m² the start of June to all of our fairways and we then don’t need to apply anything else until the following season. The best thing about this product is the longevity of the controlled release nitrogen. We have never seen any scorching or flushes of growth and it continues to feed the plant for more than the 12 weeks it states on the bag. The turf still holds its colour even into next spring.

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The Benefits of Phosphite

The subject of phosphite has become a hot topic in the world of greenkeeping of late. As more scientific studies are carried out on the effect using phosphite, rather than phosphate, can have on turf grass, the more interest is generated.

Normally, P is supplied to the plant as Phosphate (PO4) as it is manufactured from Phosphoric Acid. By contrast Phosphite (PO3) is made from Phosphorous acid. During the manufacturing process the acid is often neutralise by a base (normally Potassium Hydroxide).

It is now widely known that phosphite has a positive effect of root growth and development, and this effect is enhanced when foliar applications are used.

Based on this demand, we developed Solar Pro-Active OneShot. This foliar biostimulant, which is high in phosphite, significantly aids early root growth and establishment, at the same time promoting the plants natural resistance to disease. It is rapidly absorbed by the leaf and translocated to all parts of the plant, stimulating natural plant auxin production. It increases plants natural defence mechanism towards some pathogens.

At Indigrow, we commissioned our own study, based on our unique sachet formulation (Solar Pro-Active OneShot) with the team at Levity Crop Science.

Tests were carried out using turf grass species Lolium perenne L. Bocelli germinated in an inert medium. The germinated seeds are supplied with Solar Pro-Active OneShot at the recommended application rate, and transferred to an incubator, where they were allowed to grow for 14 days, 14 hours a day at 20 degrees.

In comparison with the control seeds, the germinated seeds supplied with Solar Pro-Active OneShot were thicker, more than double the thickness of the control roots. Levity Crop Science confirmed that applications of Solar Pro-Active OneShot increased the capacity of the plant to scavenge the soil surface for water, oxygen and nutrients, leading to the significantly increased root volume, when using the recommended application rate.

The main conclusions from the work conducted at Levity Crop Science were that Solar Pro-Active OneShot increases root volume within the first two weeks after germination, and that it increases the growth of tillers when used at the recommended application rate of 2-4 sachets/ha in 300-600 lt water.

This high concentration and the relively low appliction rates recommended  when used as a biostimulant means that it is ideal candidate for inclusion into the One Shot range. This unique packaging system has many benefits to the end user particularly savings in transport, packaging materials and disposal of emply containers.

Solar Pro-Active OneShot is a truly foliar feed, high in phosphite, designed to help dramatically reduce plant stress during the summer months. Solar Pro-Active OneShot is fully systemic, and is available in a fast acting, stable tank mixable formulation which can be used in a tank mix with all of the other OneShot products for maximum efficiency.

Spring/summer applications boost plant growth, particularly in low temperatures whilst late summer and autumn applications promote turf hardness, boosts plant health and improves disease resistance.

For further information on the research carried out, please contact

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Lansdown Golf Club – Product Testamonial

Lansdown Golf Club, near Bath, selected Indigrow as one of their chosen suppliers for the 2017 season. Head Greenkeeper, Paul Garland, chose Indigrow based on their innovative products, along with the advice provided by his area representative, Neil Baker.

The first change made was to utilise Impact Humik N 25-0-0 on the tees and aprons. This product, packed with humic acid, helped to ensure a consistent green colour throughout the playing season. Paul told us that “just half a bag per tee provided instant colour and has given us great long-term results”.

As well as improving turf health with Impact Humik N 25-0-0, Paul also chose to upgrade his wetting agent programme, but switching to Magnum Granular and Magnum Blaster Pellets. He told us that “the combination of using Magnum Blaster Pellets in the irrigation tank, and Magnum Granular on the bunker banks and driest greens, really helped to relieve the effect of dry spot during the warm summer months”.

Whenever spraying, Optik Blue Spray Dye and Optik Anti-Foam were both used to reduce foaming in the spray tank during mixing and to improve accuracy whilst spraying. Paul noted that “Indigrow’s Optik products worked effectively when added to the spray tank, improving my use of Indigrow’s range of products, as well as that of some of my other suppliers”.

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Preparing for Winter

Winter can be a stressful time for greenkeepers and groundsmen – some simple steps outlined below can help to keep your playing surface in top condition.


Remember as the daylight reduces be vigilant in your inspection for fungal disease. You can now use fungicides which stay in the leaf because of reduced mowing.

Remove the dew each morning and raise the height of cut to 5-6mm.

This is the time of year when leaves fall from the trees onto the golf course. It is essential that these leaves are removed on a daily basis to prevent leaves smothering the turf and harming the surface in the long run.

Shut down the irrigation system and ensure it is ready for winter and not left open to damage.

Fairway spiking may be carried out in October as the ground is perfect for this, being not too wet or not too dry. Continue to aerate the greens as well.

Applications of potassium (Solar K) and iron (Fusion Liquid Fe/Solar Fe) can be helpful to harden the turf against disease.

November / December

Very low daylight so disease pressure is at its highest. There are several fungicides which can be used, specifically developed for the colder conditions. Ask your Indigrow representative for advice in your region.

Remove the dew each morning and aerate with slitting or round solid tines. To help with stress caused by low daylight, apply amino acid liquid (Turbine Reaction OneShot) and iron (Fusion Liquid Fe) mixed with small amount of penetrant wetter (Magnum Forty-Four OneShot)

Continue to aerate the greens by slit tining and take tees out of action for winter if needs be.

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Indigrow in Asia

Late in 2014 we were contacted by the Nanjing office of the Chinese British Business Council who were following up an enquiry from a Chinese company looking to import specialist fertilisers and who had seen our website. Over a period of several months an outline commercial contract was negotiated with CBBC acting as an intermediary. In the summer of 2015 the agreement was signed in Beijing. Then the process of registering Indigrow as an approved supplier and the registering the products themselves started. During that time, Indigrow personnel visited China on a number of occasions which culminated in our first order being shipped in March 2016.

“Since then, we have made a shipment every 8 week or so” said Geoff Lloyd, Indigrow’ s Technical Director. “And we have more already scheduled for the next coming few months in advance of the 2018 spring season in China”

Geoff Lloyd with our Chinese partners visiting the London office of the Chinese British Business Council in June 2017.

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Ineos Golf – Product Testimonial

Ineos Golf in Newton Aycliffe have previously suffered severe problems with moss, disease and dry patch. Indigrow recommended a cost-effective application programme to head greenkeeper Shaun Collier in an attempt to resolve the pre-existing conditions.

The targeted wetting agent application programme began in April, using the recommended 20lt/ha of Magnum 357 Calibre. This was followed up by further applications at four-week intervals at 10lt/ha, following the guidelines set out by the Indigrow representative.

Head greenkeeper Shaun Collier stated: “I used Magnum 357 Calibre wetting agent on a programme throughout the growing season, to assist with our re-occurring dry patch problem. To date I have not had any issues with dry patch. I would without doubt recommend Magnum 357 Calibre to any other greenkeepers suffering with the same issues”.

The first fertiliser application of Impact Perk 4-0-14 was made in May 2017 at 35g/m². This application was aimed at reducing turf stress on the greens.

“I applied Impact Perk as a tonic/stress relief to my greens. The results after one week were far beyond my expectations. My greens have never responded so well and quickly to a granular fertiliser. I do believe this fertiliser contributed massively to my moss and disease control programme.

“The playing surface has been quoted to be “the best year to date” by our members. The use of Impact Perk with slow release iron raised questions about the drying out of my greens, as they suffer annually with severe dry patch, but the wetting agent programme utilising Magnum 357 Calibre prevented any dry patch occurring.”

Shaun also noted a cost saving to the club by using Magnum 357 Calibre and Impact Perk 4-0-14. With relatively low application rates, he was able to purchase less product, and the effective turf management programme recommended by Indigrow led to fewer man hours on the greens and less use of irrigation in maintaining the excellent playing surface.

Shaun Collier, Head Greenkeeper, Ineos Golf

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Heworth Golf Club – Product Testimonial

Indigrow were first contacted by Head Greenkeeper Peter Vinton back in February 2017. He was suffering with saturated greens and localised flooding, leading to stagnant and hydrophobic conditions, with member numbers suffering as a result.

Peter took the advice of his local technical representative, and followed an application programme based around wetting agents and biostimulants, and by May had noticed significant improvement in the quality of his greens, to the extent that their visitor numbers were significantly increased on the previous year.

Peter Vinton told us: “I found the Indigrow range and technical staff  to be of great help and support in this difficult period. The compatibility of the range both saved a lot of time, resources and money in our recovery programme.

“I do believe the recommended OneShot range of products improved the recovery and germination of overseeding in our greens, whilst Magnum 357 Calibre did a great job in stabilising our water management in the greens.

“There have been no signs of summer disease (which I had expected) due to the amount of forced growth to gain greens cover.”

All of the products applied were supplemented by an increased aeration programme, mainly sarrel rolling & solid tining.

The full programme used by Heworth Golf Club was as follows:

Application 1 Application 2 Application 3
February Optik SuperSeeker, 10lt/ha Tank mix of:

Solar Pro-Active OneShot (4 sachets/ha)

Magnum Forty Four OneShot (4 sachets/ha)

Compass Bio-Active OneShot (4 sachets/ha)

March Magnum 357 Calibre, 20lt/ha Tank mix of:

Solar Pro-Active OneShot, 4 sachets/ha

Magnum Forty Four OneShot, 4 sachets/ha

Compass Bio-Active OneShot, 4 sachets/ha

Impact Accelerate 14-0-12, 20g/m²
April Impact Organic 14-2-8, 20 g/m² Tank mix of:

Solar Pro-Active OneShot, 4 sachets/ha

Magnum Forty Four OneShot, 4 sachets/ha

Compass Bio-Active OneShot, 4 sachets/ha

May Magnum 357 Calibre, 10lt/ha Tank mix of:

Solar Pro-Active OneShot, 4 sachets/ha

Turbine Reaction OneShot, 4 sachets/ha

Impact Humik OneShot OneShot, 4 sachets/ha

July Solar Ca+Mg, 20lt/ha Magnum 357 Calibre, 10lt/ha
August Impact Organic 14-2-8, 20 g/m²


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Our Newsletter

After looking around our website, if you’d like to hear more about our products and services, you can subscribe to our regular newsletter. There’s a sign up form at the bottom of every page – simply fill in your details, and the next time we have some news to share with you, it will land straight in your inbox.

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Our New Website

Welcome to our new website – we hope you like our new look site which is designed to make it easier to find the information that you are looking for. This new site is now compatible with tablets and smart phones to allow you to keep in touch while on the move, out on the course or out in the fields.

We will be updating this blog regularly, to keep you informed of all the new and exciting things happening at Indigrow.

We hope you will take a few moments to explore our new site, perhaps bookmark us, and be sure to check back regularly for more information about our products and services, including all of the latest product developments.

If you have any questions about our new site or any other matter then please get in touch via our Contact Us page.