PSI is the most powerful version of stabilised, bioavailable Orthosilicic acid (H4O4Si) for crops. PSI has been manufactured with a new process that makes it 30% more effective than any other mono silicic acid product on the market. At a price that everyone can use and see the most outstanding results.
PSI is like a synergistic organic engine that increases nutrient absorption and the bioavailability of all other nutrients in your tank by acting as an efficient transporter. PSI also helps the plant self-regulate the internodal spacing convenient in times of environmental stress.
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