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Turf FAQ's

WHAT IS THE DIFFERENCE BETWEEN GRANULAR AND LIQUID fertilizer?

Granular fertilizer is made up of dry granules and is packaged in bags. Liquid fertilizer is ‘fertilizer in solution’ and is bottled. They contain the same components, and there is little variation in plant reaction to the two types.

WHAT ARE THE ADVANTAGES OF USING A LIQUID FERTILIZER INSTEAD OF A GRANULAR FERTILIZER?

For course superintendents and greens keepers, the advantages of liquid fertilizer over granular fertilizer are numerous. Firstly, liquid fertilizer is easier and quicker to apply. This is particularly the case with Fertigation systems, which allow superintendents to fertilize when irrigating. These systems dose appropriate quantities of fertilizer into irrigation water.

Secondly, liquid fertilizer can be dispersed more accurately than granular fertilizers. An accurate liquid application (1) improves the absorption of nutrients by allowing the fertilizer to remain in the root zone for longer, and (2) ensures more uniform growth.

Thirdly, liquid fertilizers penetrate the soil much faster than granular fertilizers. This means that there is less risk of the fertilizer’s nitrogen converting into gaseous nitrogen and escaping to the atmosphere (volatilisation).

Fourthly, when opened, granular fertilizer products absorb moisture over time making the granules difficult to apply. Granular fertilizers have to be stored in a dry, shady place to increase their useful life. Sulfert 8 is a stable formulation and it can be stored for long periods – there is no need to use it in the current fertilizer season.

From an aesthetical perspective, there is no dust and dirt to contend with during and after application when using a liquid fertilizer. Unlike many granular fertilizer products, Sulfert 8 ensures that your greens are always pleasing to the eye.

WHAT ARE THE DISADVANTAGES OF USING LIQUID FERTILIZERS?

The major disadvantage of liquid fertilizer is the capital outlay required for application. There are many ways of applying liquid fertilizers, however, the most convenient way of doing so is through a fertigation system. Unfortunately, these dosing devices are usually expensive. More affordable application can be achieved for smaller areas by using: a spray device or a venturi mix nozzle. Speak to us - we are always willing to find an application solution suited to your needs.

HOW DO I APPLY LIQUID FERTILIZER?

A liquid fertilizer can be applied through use of a fertigation system, a spray device, or a venturi mix nozzle for handheld application. Sulfert 8 is highly soluble and will not clog up the proportioning device if used according to instruction.

WHAT DOES SULFERT 8 OFFER MY TURF?

Sulfert 8 is primarily a nitrogen and sulphur source for your turf. Together, the nitrogen and sulphur will stimulate growth and encourage greening. For green and healthy-looking turf use Sulfert 8 as instructed on label directions.

HOW OFTEN DO I APPLY SULFERT 8 FERTILIZER ON FAIRWAYS?

On South African courses, general turf requires approximately 84 kg.N.ha-1 (8.4 kg. N) per application when applied three times per season.1

Early Spring
When rapid growth begins   (South Africa: Late August – September)
Late Spring
Prior to summer heat and drought stress (South Africa: November)
Early Autumn
After summer heat and drought stress (South Africa: Late March)

HOW DO I IDENTIFY A NITROGEN DEFICIENCY IN MY TURF?

As a rule of thumb, a lack of nitrogen in the soil may be evident if turf appears to have:

  • Yellowish leaf blades — predominantly on older leaves
  • Stunted growth 1

Sulfert 8 provides nitrogen in the ammonium form for your turf!

HOW DO I IDENTIFY A SULPHUR DEFICIENCY IN MY TURF?

Observation:
As a rule of thumb, yellow colouration of turf often first observed in the new growth is often symptomatic of a sulphur deficiency.1

Soil analysis:
Ideally, a sulphur deficiency in the soil should be identified from a soil analysis so that remedial action can be taken as early as possible.

HOW DOES SULFERT 8 RECTIFY A SULPHUR DEFICIENCY?

Ammonium sulphate provides sulphur in Sulfate form which is readily available for plant absorption and the correction of sulphur deficiency. By contrast, elemental sulphur may take weeks or months to be broken down into this form so that it may be absorbed.1

For a chemical analysis please refer to the chemical analysis sheet by clicking here.

MY TURF APPEARS TO BE LACKING SULPHUR BUT MY SOIL ANALYSIS STATES OTHERWISE. WHY?

There are factors that prevent plants from absorbing sulphur from the soil including (1) root pruning (caused by some herbicides and acidic soils) and (2) root-rot disease. Checking for these conditions and correcting by, (1) modifying the pH of your soil, or (2) through treatment of seeds can help you to avoid unnecessary applications of a sulphur fertilizer such as Sulfert 8.1

HOW DO I CONDUCT A SOIL TEST FOR SULPHUR?

Western Cape Department of Agriculture at Elsenburg is committed to supplying the farming community and public with a high level of service. Soil samples can be taken and couriered/posted to Elsenburg for analysis and recommendations.

ARE SULPHUR DEFICIENCIES COMMON IN SANDY SOIL CONDITIONS?

Yes. Sandy soils lack sulphur-producing organic matter, and subsequently require additional sulphur in the form of elemental sulfur or sulphur-rich fertilizers. For this reason, sandy soils often produce sulphur-deficient turf. 2

IS SULFERT 8 SUITABLE FOR DRIP IRRIGATION?

Yes, Sulfert 8 is well suited to drip irrigation. It is filtered throughout its production process to mitigate the risk of solid particles being left in solution. It has a maximum particle size of 2 µm, is highly soluble in water, and will not clog drip irrigation nozzles. Quality assurance systems are in place to ensure that deliveries conform to the highest standards.

CAN I APPLY SULFERT 8 THROUGH A FERTIGATION SYSTEM?

Yes, Sulfert 8 is ideal for fertigation applications. For more uniform growth, minimum wastage, and less corrosion of irrigation equipment, it is recommended that where possible, smaller amounts of Sulfert 8 be applied on a more regular basis.

IS SULFERT 8 CORROSIVE?

Sulfert 8 is an acidic fertilizer (pH 2.6 - 3.2), and as with all acids will corrode certain materials in high concentrations (e.g. mild steel). Furthermore, due to its high salt content, Sulfert 8 is abrasive when handling and rubber pump impellors should be avoided where possible. To protect equipment (pump impellors, pump housings, piping, etc.) it is recommended that Sulfert 8 be diluted with water and/or equipment be flushed with water after use. I.e. dilute with water when applying and irrigate after application.

WHAT QUALITY ASSURANCE IS CONDUCTED ON FERTPLAN PRODUCTS PRIOR TO DELIVERY?

Routine quality assurance is conducted on all batches prior to their release. A Contents Analysis Report is provided when requested.

CAN SULFERT 8 BE BLENDED WITH OTHER FERTILIZERS?

Yes, Sulfert 8 is highly soluble and can be mixed with a number of fertilizers (Urea, Ammonium Nitrate, etc.) to make specialized blends to suit your turf’s nutrient requirement.

IS 10 KILOLITRES OF SULFERT 8 THE SAME AS 10 TONNES?

No, Sulfert has a Specific Gravity of around 1.2 (1205 - 1277 kg/m3). Therefore, 10 kL weighs approximately 12 tonne.

WHAT DOES SULFERT 8 SMELL LIKE?

Sulfert 8 has a slight odour of ammonia and horseradish.

HOW MUCH AMMONIUM SULPHATE IS THERE IN SULFERT 8?

The Sulfert 8 is at least 36% ammonium sulphate. I.e. It has a minimum of 36g ammonium sulphate per 100g.

WHAT DOES SULFERT 8 LOOK LIKE?

Sulfert is a colourless, slightly opaque liquid.

IS SULFERT 8 A REGISTERED FERTILIZER?

Yes, Sulfert 8 has been approved by the Department of Agriculture according to Act 36 of 1947 (Group II).
Reg. No. B3481

1The Fertilizer Society of South Africa, Fertilizer Handbook 2003 , 5th revised edition.
2 Heiniger et al. 2003, Ag Research Technician II, http://www.ces.ncsu.edu/plymouth/cropsci/docs/sulfur.html

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