Benefits of Silica

The role of silicon (Si) in plant growth and development was overlooked until the beginning of the 20th century. Si deficiency in soil is now recognised as being a critical limiting factor for crop production.


Numerous greenhouse and field experiments have shown the benefits of adding silica fertilisers for improving crop production and quality and it is now highly regarded as a component of productive farming systems.



The proven benefits of Si in plants include ;



  • Improved cell structural strength, reducing the incidence of lodging. Si accumulates in the epidermal tissues increasing the mechanical stability of the plant.

  • Improved resistance to pathogens and insect attack. Si deposition in the epidermis tissues provides a physical barrier to pathogens and insects.

  • Improved photosynthetic activity. The improved structure of the plant has been shown to improve its ability to capture light.

  • Reduced drought and heat stress. The deposition of Si in the plant tissues reduces transpiration rates.

  • Reduced salt stress by inhibiting sodium absorption.

  • Improved utilization of applied fertilisers, particularly nitrogen, phosphorus and potassium.

  • Alleviates toxicity of iron, manganese, cadmium, aluminium and zinc.

Agrisilica is an ideal fertiliser for supplying Si to crops. It also has the added benefits of a high cation exchange capacity (CEC) enabling better retention and uptake of nutrients as well as an ability to absorb and release large amounts of moisture.