16-0-5 25% PCU Lockup Plus is a fertilizer designed to optimize nutrient availability for your lawn or garden. It contains 16% nitrogen and 5% potassium, along with 25% polymer coat urease (PCU) for enhanced efficiency. The PCU technology ensures that nitrogen is released steadily over time, minimizing nutrient loss and maximizing growth potential. Ideal for a variety of soil types, Lockup Plus enhances nutrient uptake, reduces leaching, and supports steady growth.