Colloidal Soft Rock Phosphate (ACO Organic)

A Quality Source Of Phosphorus That Will Not Leach, But Is Fine Enough To Be Plant Available

Not to be confused with rock phosphate, far more ethical than Guano

Soft rock phosphate is a bio-friendly, colloidal clay-based calcium phosphate that can never lock up, in stark contrast to all other phosphate sources. This exceptional fertiliser includes 8 – 9% phosphorus, 19.3% calcium, 26% silicon and a rich lode of trace elements. A microbe-friendly bio-phosphate, which is an integral part of our soil regeneration program. This is one of the few phosphate sources that does not have problems with high levels of the heavy metal cadmium.

Recommended Usage

Compost 

• 650g or 500ml per 1m3

Modified media /potting soil  

• 650g – 3.5 kg or 500ml – 2.5ltr per 1m3

Modified media/ Potting soil

• 32.5g – 175g or 25ml - 135ml  per 50ltr

Soil grown crops (broadcast and incorporate) 

• 1300 - 6500 kg/ha or 130g – 650g/m2

1/4 Cup of Calphos = 75g