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5:2 Humic Acid + Kelp Extract

Original price was: $19.00.Current price is: $15.20.
SKU OY0000101937 Category
Thoughtful quality
Easy delivery
30-day returns

A concentrated, fully soluble biostimulant that pairs 100% soluble humic acid with cold-processed kelp extracts in a 5:2 ratio. Built to feed soil biology, improve nutrient uptake, and deliver marine polysaccharides and natural growth compounds in a single, tank-friendly powder. Suitable for foliar spraying, fertigation, soil drenching, and seedling treatment across vegetables, orchards, vineyards, turf, ornamentals, and broadacre crops.

What It Does

The humic fraction acts as a carbon source and chelator, holding nutrients in plant-available forms and stimulating soil microbial activity. The kelp fraction contributes alginic acid, natural growth-promoting compounds, and a broad spectrum of trace elements. Together they support stronger root development, improved stress tolerance through frost and drought, better nutrient use efficiency, and more resilient soil biology. Because it is 100% soluble, it dissolves cleanly for both small hand mixes and large commercial batches.

Application Rates

Home Garden & Small Mixes

Foliar spray: 1g per litre. Move toward 2g per litre only where you need heavier coverage, and test-spray sensitive or light-coloured foliage first to check for staining.

Soil drench: 1g per litre as a general working strength. For a heavier soil-building pass, increase up to 2 to 3g per litre.

Watering can: add 1 teaspoon to a 9L watering can and water in around the base of the plant.

Spot spraying: 10g per 10L of water for targeted, small-area treatments.

Commercial & Field Crops

Vegetables: foliar at 100g per 100L of water, up to 750g per hectare. Fertigation at 1kg per hectare. Apply every 1 to 2 weeks or as required.

Orchards & vineyards: foliar at 100g per 100L of water, up to 1kg per hectare. Fertigation at 1kg per hectare. Apply prior to flowering or as required.

Ornamentals, natives & turf: foliar at 100g per 100L of water, up to 750g per hectare. Fertigation at 1kg per hectare. Apply as required.

Broadacre crops: 100 to 200g per hectare in 60 to 100L of water, depending on canopy closure. Apply as required.

Pasture: 100 to 200g per hectare in 60 to 100L of water. Apply as required.

Seedlings, Cuttings & Transplants

Rooting: dip cuttings in a 1:1000 solution (1g per litre) before planting.

Seedlings: