Fertilizer Slide Chart Calculators

Every greenhouse grower should have these slide charts in their toolkit! 💧 They’re water-resistant and designed to stay right by your fertigation setup. Want to learn more about these handy tools? Reach out to us — we’d love to share!

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TRUSTED BY PROFESSIONAL GROWERS SINCE 1947

Allow your garden to flourish with us and turn it into delicious homemade recipes!

JR Peters Inc. makes the highest quality and truly soluble nutrient blends on the market. How can we say that? Because we are here watching over every step of the process. From research and formulation design in our small batch lab, through the intense qualifying of the purest raw materials, to our long-time employees watching over each handcrafted batch. The family at JR Peters ensures that the nutrients in our blends meet the strictest standards and will grow only top quality plant material.


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