Build Stronger, More Resilient Plants
Strengthen plants throughout the growing cycle with Nutrifield Si-Phi, a concentrated plant health enhancer combining potassium silicate with potassium phosphite.
Silica supports stronger structural cell walls, helping plants develop the physical strength needed to support vigorous growth and heavy flowering. A stronger plant structure can also improve resilience when crops experience challenging environmental conditions such as excessive heat or drought.
The phosphite component supports plant metabolic activity and stress resistance, making Si-Phi a useful addition to a complete hydroponic nutrient programme from vegetative growth through flowering.
Highly concentrated and designed to complement your existing base nutrients and additives, Si-Phi provides targeted structural and stress support without replacing the essential nutrition supplied by your main feed.
FAQs
What is Nutrifield Si-Phi?
Nutrifield Si-Phi is a concentrated plant health enhancer containing potassium silicate and potassium phosphite. It is designed to support plant structure, strength and resilience throughout the growing cycle.
What does silica do for plants?
Silica supports stronger structural cell walls, helping plants develop more robust stems and plant tissue while improving their ability to cope with environmental stresses.
When should I use Nutrifield Si-Phi?
Si-Phi can be used throughout vegetative growth and flowering. Nutrifield's current feed chart recommends an application rate of 0.2ml per litre during vegetative, early flowering and late flowering stages.
What does phosphite do in Nutrifield Si-Phi?
The phosphite component is included to support plant metabolic activity, robustness and resilience, complementing the structural benefits provided by silica.
How should Nutrifield Si-Phi be added to a nutrient solution?
Nutrifield recommends adding Si-Phi to the reservoir first. Allow approximately one minute before adjusting the solution to pH 6.5, then continue preparing the nutrient solution.
Does Nutrifield Si-Phi replace base nutrients?
No. Si-Phi is a plant health enhancer designed to complement a complete nutrient programme rather than replace the essential nutrients supplied by your base feed.