Opticast Earthworm Castings.
Earthworm castings are a thick black natural compound produced by earthworms. It is the fundamental component of natures soil building …
Author Archives: Nicholas
Worm tea and vermi-leachate.
Vermi leachate is the slow and gentle percolation of water though worm castings where as worm tea is produced by …
Agricultural and commercial literature.
Here at Optigrow we strive to make the scientific data, reports and articles as digestible as possible. We know our …
Opti-cast – Your complete guide.
Optigrow produces the oldest and most successful compound used in fertilisation and soil remediation in history. Over 50 years of …
BBC Africa Business Report Interview Aired 9 January 2017
Earthworms heal soil on parched South African farms 9 January 2017 Last updated at 00:24 GMT The drought that has …
Vermicast application guide
Optigrow suggests the following application. Large trees: 2 litres. Planting new trees: 2 Litres (in the planting hole) Small trees, …
A farmers guide to the percolation of Opti-feed or “Worm tea”.
Getting started, it is highly beneficial to familiarise yourself with the differences and benefits of both vermicast in its natural …
Soil Toxicity
Issues farmers face with soil degradation is the issues of soil toxicity and chemical imbalance caused by prolonged fertiliser and …
Soil
Soil, our silent and often underappreciated friend is the backbone of all the plants we see around us, gardens, agriculture …
Cationic exchange
An important and often unrecognized feature of vermicast is its cationic exchange rate. This is the rate at which the …
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