DIAMOND FOLIAR MULTI-NUTRIENT BIOSTIMULANT
Diamond – Foliar Multi-Nutrient Biostimulant for Growth & Crop Vigour
Diamond Foliar Biostimulant Use:
Diamond is a concentrated liquid foliar biostimulant and multi-nutrient fertiliser formulated with unique organic acids to improve nutrient activity, uptake and movement within the plant.
It promotes leaf, shoot and root development and supports crop growth, quality and yield through highly mobile forms of phosphorus and potassium, supported by calcium, zinc, copper and nitrogen. Diamond is designed for use across arable, root, vegetable, fruit, ornamental and turf crops.
Key benefit:
Supports early rooting, crop vigour and nutrient mobility
Diamond helps crops access and use key nutrients more efficiently, supporting early rooting, stronger leaf and shoot growth, improved plant health and better recovery from stress or damage.
Benefits:
- Supports early root development.
- Promotes leaf and shoot growth.
- Helps improve crop growth, quality and yield.
- Supports flower number and quality in relevant crops.
- Helps crops recover from stress and damage.
- Improves resistance to abiotic stress.
- Supports plant vigour and crop health.
- Provides highly mobile phosphorus and potassium.
- Includes calcium to support cell wall strength.
- Enhances the performance of compatible tank-mix partners.
When and where to use:
Diamond should be applied as a foliar spray when there is sufficient foliage to ensure good coverage and uptake. It can be used during active crop growth, early rooting, periods of nutrient demand, or when crops need support recovering from stress.
Repeat applications can be made every 10–21 days, depending on crop requirement and stress factors.
Crops:
All arable, root and field vegetable crops, including potatoes, tomatoes, maize, oilseed rape, broccoli, cauliflower, brassicas, lettuce, spinach, onions and other leafy vegetables. It may also be used on flowers, ornamentals, turf grass, hops, fruit, top fruit, cane fruit and citrus fruit.
Pack Size:
10 L, 1000 L (IBC)
Technical Information – Diamond
Diamond is a concentrated liquid formulation of phosphorus, potassium, calcium, zinc, copper and nitrogen in a unique organic acid and lignified humate complex. It has been developed to improve nutrient mobility, uptake and plant availability in root, vegetable, arable and fruit crops.
The ionic phosphorus in Diamond, combined with zinc and copper, supports plant health and crop vigour, helping crops naturally tolerate a wide range of stresses. Calcium supports cell wall strength, while the humate complex helps improve nutrient movement throughout the plant.
| Analysis | w/v % | g/L |
| Total Nitrogen (as N) | 1.74 | 17.44 |
| Phosphorus (as P2O5) | 22.0 | 220.00 |
| Potassium (as K2O) | 6.69 | 66.88 |
| Calcium (as CaO) | 2.20 | 22.04 |
| Zinc (as Zn) | 1.64 | 16.35 |
| Copper (as Cu) | 0.32 | 3.18 |
Application – Diamond
General application guidance
- Apply when the crop has sufficient foliage.
- Always spray in enough water to ensure good coverage.
- Suggested water volume for most crops: 150–400 L/ha.
- Suggested water volume for top fruit: 2,000–4,000 L/ha.
- Three-quarter fill the spray tank with water.
- Shake the container before use.
- Add Diamond slowly to the tank while agitating.
- Top up with water and spray.
- Wash hands before meals and after work.
- Safely dispose of empty containers.
| Crop | Timing | Rate |
| Flowers, ornimentals and turf grass | Apply when sufficient foliage. | 1.0L/ha |
| Seedling modules | Apply as a drench before sowing | 1:300 Dilution of Diamond |
| Vegetables | Apply when sufficient foliage is present. Repeat applications every 10 – 21 days depending on stress factors. | 1.0 – 1.5 L/ha |
| Field crops, hops & fruit | Apply when sufficient foliage is present. Repeat every 10-21 days depending on stress factors | 0.5 -1.25 L/ha |
| Transplants / modules / roots | Drench modules or roots, or soak compost before transplanting | 1:300 dilution, up to 24 hours before transplanting |
COMPATIBILITY
- Diamond is physically and chemically compatible with a wide range of agrochemical products
- A jar test is recommended before adding to a new tank mix.
MSDS Sheet – Diamond
For all MSDS sheets please email your request to [email protected]
Product Label – Diamond


Frequently Asked Questions – Diamond
1. What is Diamond used for?
Diamond is used as a foliar multi-nutrient biostimulant to support early rooting, crop vigour, leaf and shoot growth, nutrient uptake, crop quality and recovery from stress or damage.
2. Which crops can Diamond be used on?
Diamond can be used across a wide range of crops, including potatoes, vegetables, brassicas, onions, leafy vegetables, maize, oilseed rape, fruit, hops, flowers, ornamentals and turf grass.
3. When should Diamond be applied?
Diamond should be applied when there is sufficient foliage to allow good spray coverage and uptake. Repeat applications can be made every 10–21 days depending on crop need, growth stage and stress pressure.
4. Can Diamond be tank-mixed with other products?
Diamond is compatible with a wide range of agrochemical products, but a jar test should always be carried out before adding it to a new tank mix. For specific compatibility advice, contact Emerald Research or your distributor.
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