Seaweed Plus NZ Made Commercial Seaweed Extract for Growers
Seaweed Plus – Boost Vine Root Growth, Nutrient Efficiency, and Stress Resilience
In vineyards, healthy roots are the foundation of high-quality grapes and consistent yields. Stress events like frost, heat, drought, or transplant shock can reduce root activity, limit nutrient uptake, and impact crop performance.
Seaweed Plus is a New Zealand-made seaweed extract with humic and fulvic acids designed specifically for commercial growers in vineyards, orchards, and high-value horticultural systems. It supports the soil-root-plant interface, helping vines make the most of applied nutrients and thrive under challenging conditions.
The Vineyard Challenge
Grapevines face unique production pressures:
Limited or shallow root growth can restrict nutrient and water uptake.
Frost, heat, or water stress can reduce canopy growth and fruit quality.
Nutrient losses through leaching or poor soil interaction reduce fertiliser efficiency.
Seaweed Plus addresses these challenges by supporting root growth, soil nutrient function, and plant stress resilience, giving vineyard managers more consistent crop performance.
How Seaweed Plus Works
Seaweed Plus combines Ascophyllum nodosum seaweed extract with humic and fulvic acids, delivering benefits both in the soil and on the plant.
1. Seaweed Bioactives
Contains natural plant compounds such as cytokinins, auxins, and betaines.
Improves stress resilience, helping vines recover from frost, heat, drought, or transplant stress.
2. Humic and Fulvic Acids
Enhance nutrient retention and availability in the root zone.
Stimulate soil microbial activity, which supports root growth and nutrient cycling.
3. Combined Effect
Healthier, deeper roots
More efficient uptake of nitrogen and other nutrients
Improved vine stress tolerance and crop consistency
Practical Use in Vineyards
Application: Foliar spray or soil drench
Integration: Works alongside fertiliser and irrigation programmes
Concentration: Highly concentrated; low rates per hectare
Compatibility: Most fertilisers and agrochemicals (always jar-test before mixing)
Seaweed Plus is not a fertiliser — it doesn’t supply significant NPK but enhances how vines use fertiliser and nutrients already in the soil.
Benefits for Vineyard Growers
Stronger root systems – explore more soil for water and nutrients
Better nutrient efficiency – more of your fertiliser ends up in the vine
Enhanced stress tolerance – frost, heat, drought, and transplant resilience
More consistent grape quality and yield – predictably strong crops
Seaweed Plus is also suitable for orchards, high-value horticulture, and vegetable crops, particularly where root development and nutrient efficiency are critical.
Talk to Us About Seaweed Plus
Our team can advise vineyard managers on:
Optimal application timing for vines
Integration with fertiliser, irrigation, and spray programmes
Maximising root growth, nutrient efficiency, and stress resilience
Contact DCT today to see how Seaweed Plus can help your vineyard produce stronger, healthier vines and more consistent yields.
Seaweed Plus 200 litre drum = $1139.33
Price Excludes GST & Freight
Please Contact Us to order or enquire about Seaweed Plus in 200 or 1000 litre containers.
Product Application
-
Availability
20 litre Jerry Can
200 Litre Drum
1000 litre IBC
-
Application rate:
15 to 20 Litres /ha, some crops at 5 litres /ha
-
Dilution rate:
15 litres of water per 1 litre of product
Scientific References
New Zealand Research
Cameron, K. C., Di, H. J., & Farrant, G. K. (2013). Seaweed extracts improve pasture growth and nutrient uptake in New Zealand trials. Journal of New Zealand Grasslands, 75, 65–72.
Edmeades, G. O., et al. (2016). Humic acid and seaweed-based amendments enhance nutrient efficiency and root development. New Zealand Journal of Agricultural Research, 59, 341–352.
DairyNZ. Forages for Reduced Nitrate Leaching programme – highlights soil and root management to maximise nutrient use.
International Research
Khan, W., et al. (2009). Seaweed extracts as biostimulants of plant growth and development. Journal of Plant Growth Regulation, 28, 386–399.
Chen, J., et al. (2018). Humic substances enhance nutrient uptake and soil microbial activity. Agronomy Journal, 110, 1201–1210.
Seaweed Plus has been independently tested and contains amino acids, trace minerals, carbohydrates, and natural plant growth promoters such as cytokinins, gibberellins, and auxins, which support plant stress resilience, root development, and overall crop performance.
Humic Acid
Fulvic Acid
Carbon
Oxygen
Trace Minerals
Nitrogen
Phosphorus
Potassium
Sulphur (S)
Calcium (Ca)
Magnesium (Mg)
Iron (Fe)
Copper (Cu)
Manganese (Mn)
Zinc (Zn)
Boron (B)
Cobalt (Co)
Molybdenum (Mo)
Selenium (Se)
Seaweed Plus can typically contain more than 60 micro-nutrients
Amino Acids
Aspartic Acid
Threonine
Serine
Glutamic Acid
Proline
Glycine
Alanine
Valine
Methionine
Isoleucine
Leucine
Histidine
Lysine
Arginine
Plant growth promoters
Mannitol
Betaines
Auxins
Cytokinin
Gibberellin
Alginic Acid
We would love to hear from you and answer any questions you may have.
Our Products
-
![]()
Optimise iO
Embrace the future with Optimise - iO
Enhance the efficiency of your inputs by improving soil structure and boosting soil biology to enhance their abundance and health.
Combine this with urea, mix it on farm using your Tow & Fert or other mixer, and apply it with your fertiliser to maximise nitrogen or mineral utilisation. -
![]()
Restore
Restore is our Gold premium Nitrogen containing product, it contains our tested Nitrogen stabiliser & mineral chelator for low to no Leaching of N, our soil energiser for improving soil structure and our biology enhancer, to increase the vitality and numbers of beneficial soil biology.
-
![]()
Turbo N
Turbo N is our Silver premium Nitrogen containing product, it contains our tested Nitrogen stabiliser & mineral chelator for low to no Leaching of N, our soil energiser for improving soil structure and our biology enhancer, to increase the vitality and numbers of beneficial soil biology.
-
![]()
Lazerhume
Lazerhume Contains a liquid humate extracted Humic & Fulvic, soil energizer
Created from high quality raw materials
Detox, Restore, Revive
Grow Organic, Bio Gro #4833
-
![]()
Weed Spray Enhance
Weed Spray Enhance Increases and aids in the transportation of chemical weed spray into the weed boosting its effectiveness and efficiency, it can suppress re-growth up to twice as long as weed spray alone. Weed Spray Enhance contains biological feeders to enhance soil biology. once in the soil weed spray enhance aids in biodegrading the chemical residues.
Natural Product
-
![]()
Animal Boost
The revolutionary supplement that's set to transform your animals' health and productivity!
"Animal Boost" is a powerful blend of Humic and Fulvic acids, designed to support the well-being of your livestock in ways you've only dreamed of. Imagine a single supplement that can: Improve digestion, Enhance nutrient absorption, Bolster the immune system of your animals.
