Eco-Logic Concepts produces:

Eco-Seaweed Leachate is made utilising Ascophyllum nodosum kelp, pure rainwater, Bio-Dynamic compost preparations and Garuda's "Etherics 1000". This is one of the most dynamic certified organic liquid fertilisers available on the market in New Zealand today.

The Process
Benefits of Kelp
Benefits of the Bio-Dynamic Compost Preparations & Etherics 1000
Plant Growth Hormone
Fertiliser Supplement
Soil Conditioner
Application Rates


Vermicast Products

The Process
The process involves cold processing through flowforms which are vessels utilised in stirring Bio-Dynamic preparations. The flowforms purify, energise, oxygenate and combine ingredients to create a liquid leachate.

Benefits of Kelp
Research has shown that the best species of kelp for agricultural and horticultural use is Ascophyllum nodosum which grows in the cold nutrient rich waters off the Atlantic coast of Canada.

Kelp is a rich non-polluting source of organic minerals. It contains over 60 minerals and elements, 21 amino acids, simple and complex carbohydrates and essential plant growth hormones.

Under certain conditions it enhances the germination of seeds, increases the uptake of nutrients, imparts a degree of frost resistance and inhibits the attach of path by pathogenic fungi, predatory insects and soil nematodes. It also improves soil structure and increases soil water holding capacity.

Benefits of the Bio-Dynamic Compost Preparations & Etherics 1000
These preparations stimulate and feed soil micro-organisms and beneficial bacteria. This leads to increased plant and soil health and an increased resistance to pest and fungal attack.

Plant Growth Hormone
The immediate benefit obtained from kelp can be attributed to the release of auxins, cytokinins and gibberellins. These plant growth hormones required in small quantities are essential for cell division and cell elongation, basic functions of plant growth. Enhanced seed germination, early emergence, stimulated root and shoot growth, increased fruit set and decreased fruit drop are some of the benefits derived from increased levels of plant hormones.

Fertiliser supplement
When used as a fertiliser supplement kelp is an excellent source of chelated minerals necessary for proper plant growth. Kelp acts as a slow release fertiliser, slowly breaking down and releasing nutrients. Mannitol and alginic acid, major components of kelp act as chelating agents helping in the formation of humus.

The potential benefit of kelp fertiliser supplement increases each year as it contributes to the soil organic matter.

Soil Conditioner
As seaweed does not require the rigid plant structure characteristics of land plants, their organic composition is quite different. Instead of cellulose as the main organic constituent seaweeds are mainly composed of alginic acid and simple sugars such as mannitol. These compounds break down much more readily than cellulose. Kelp is an excellent source of organic matter due to its rapid rate of decomposition.

Soil organic matter and associated soil algae, bacteria and fungi play an important role in the soil fertility and plant nutrient uptake.

The application of kelp acts as a soil conditioner by stimulating microbial activity. The carbohydrates and acids released during decomposition of the kelp results in the aggregation of soil particles and the chelating of nutrients which might otherwise be leached from the soil. This increased soil fertility benefits soil organisms which in turn act as soil conditioners and a renewable source of nitrogen.

Application Rates


As a general recommendation Eco-Seaweed leachate should be applied at the rate of 10 litres per hectare on a monthly basis.

A rate of 20:1 is recommended for application in nurseries, glass houses and home gardeners i.e. 1 litre of leachate to 20 litres of water.

N.B. For more specific application programs for all crops please do not hesitate to contact us for program details.


Eco-Seaweed leachate should be applied at the rate of 10 litres per hectare every 3 to 4 months (3 to 4 times per year).

Price List

Eco-Seaweed leachate is available in 1000 litre pods, 200 litre drums, 20 litre containers.

 1,000 litre pod  @ $2.50 / lt  $2500
 200 litre drums  @ $3.00 / lt

A drum deposit of $35/drum or $225/pod is added to this price, which is refunded upon return
 20 litre containers  @ $4.00 / lt  $80
5 litre containers  @ $5.00 / lt  $25

N.B. These prices are GST excluding and do not include freight

Current Analysis

We have just completed a new analysis on our product " Eco Seaweed Leachate ". As a result of the improvements in our brewing process and addition of fully mature vermicast the results are outstanding.

Element PPM (NEW) % (NEW)
Carbon / Nitrogen    
pH 5.4  
Calcium 149019 14.9
Magnesium 8797 0.9
Sodium 4707 0.47
Potassium 65246 6.52
Sulphur 668 0.07
Phosphorus 161 0.02
Boron 10.1 0.001
Iron 2407 0.24
Manganese 132.2 0.013
Copper 21.5 0.002
Zinc 278.9 0.027
Cobalt 36.8 0.003
Nitrates 39200 3.92

Click here to download the brochure for Eco-Seaweed Leachate


A 10% ratio by volume of fully mature vermicast is added to our seaweed brewing process with every new brew. Our research has shown that the combination of seaweed and vermicast as a nutrient mix actually compliments each other.

Analysis of earthworm castings has revealed that they are richer in plant nutrients than the soil, approximately three times more calcium and several times more nitrogen, phosphorus and potassium.

Worm castings contain a high percentage of humus. Humic acid which is present in humus, not only provides a binding medium for plant nutrients but also releases them to plants upon demand. Humus is believed to aid in the prevention of harmful plant pathogens, fungi, nematodes and bacteria.

The key factor is the microbial activity. Generally this is ten to twenty times higher in vermicast than top soil.

Worm castings (vermicast) contains thousands of bacteria, enzymes and remnants of plant materials and animal manures which have been digested by worms. Humus, which is in vermicast in large amounts is a complicated material formed during the breakdown of organic matter. One of it's components, humic acid, provides many plant nutrients such as calcium, iron, potassium, sulphur and phosphorus. These nutrients are stored in the humic acid molecule and are readily available to the plants when required.

Vermicast also contains slow release nutrients which are immediately available for plants to utilise. They dissolve slowly which helps in the prevention of nutrient leaching. The product can also help insulate plant roots from extreme temperatures, reduce erosion and is odourless.

In summary, when vermicast is utilised it provides the following benefits ;


Eco-Logic Concepts produces a fully certified vermicast product under the Bio-Gro New Zealand certification scheme.

Click here to download our brochure for our Vermicast products

We are looking for more distributors for the home gardener vermicast packs. Contact us if you are interested