Beneficial Information on Silica
MECHANISM OF SILICA
Fertilisers that are high in soluble silica and that silica is in the form of a Monosilica acids, such as Madura Guano Gold-Kwik Start® and Madura Guano Sulphur Gold®, react in the soil solution to release Si(OH) 4, which is then absorbed onto either existing free iron, calcium or aluminium, or into existing insoluble Phosphorus compounds such as Calcium (caHPo4), Aluminium (2Al (H2Po4) and Iron (2FePo4).
This has the effect of;
- Transforming slightly soluble Phosphates into mobile forms that are more plant available.
- The binding of elements that are hostile to phosphorus allowing free phosphorus to be plant available for longer.
ALL FACTS SUGGEST that Si-rich materials can be used for reducing - “P” - “TIE UP” and keep applied PHOSPHORUS in plant available form.
CaHPo4 + Si (OH) 4 = CaSio3 + H2O + H3 Po4
Calcium / Phosphate + Silica Acid = Calcium Silicate + water + Phosphate
2Al (H2Po4) 3 + Si (OH) 4 + H = Al2Si2O5 + SH3PO4 + 3H2O
Aluminium Phosphate + Silica Acid + Hydrogen = Aluminium Silicate + Phosphate + Water
2FEPo4 + Si (OH4) + H = FeSiO4 + 2(H3PO4)
Iron Phosphate + Silica Acid + Hydrogen = Iron Silicate + Phosphate
SILICA & K
Silicon Fertilisers exhibit very good absorption properties; owing to this, leaching of Potassium from the surface horizon was reduced by application of Silicon. Therefore, Madura Guano Gold-Kwik Start blended with either MOP or SOP or KMS will allow for maximum availability of both P and K in the soils that are high in Fe, Al or Ca. The interaction of Silica allows the blend to work in both acid and slightly alkaline soils.
To read the relevant articles simply click on the links below:
A brief independant examination of the composition of Madura Guano Gold® and its action in the soil.
Why Madura Guano Gold-Kwik Start® and its important Silicon component work so well.