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ShoreGrow APF-2 was developed and tested by scientists of the Department of Botany, University of the Witwatersrand, South Africa. The product was characterised and performance tested by standard laboratory and greenhouse techniques.
Alginic acid is a flexible, jelly-like, natural compound found in brown seaweeds that has hydrophilic (i. e. 'water-loving') properties.
Southern African and Namibian brown seaweeds have very high Alginic acid contents ShoreGrow contains up to 45%. On adding ShoreGrow to water, the chips swell up to 16 times their initial mass as the constituent Alginic acid absorbs water. As a result, when hydrated ShoreGrow chips are added to dry soil, the chips become water 'reservoirs' for thirsty plants, with water slowly released to plant roots by capillary action.
Alginic acid also carries a strong negative charge, and as a result ShoreGrow will act as a cation exchanger and chelating agent in the soil, increasing overall soil fertility and nutrient availability to plant roots as described below. Alginic acid is composed of carbon, hydrogen and oxygen and is completely non-toxic.