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Jacks Calcium Nitrate 15.5% Nitrogen 18% Calcium 25lb bag Jack's Professional
· This product is used to supplement calcium (18%) and nitrate nitrogen with no micronutrients added
· This "greenhouse grade" material can be used for foliar sprays to supplement calcium levels in tissue
· 25lb bag
· MPN : Does Not Apply
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$39.99

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Jacks Hydroponic 5-12-26 Jack's Professional 25lb Bag
· Supplies magnesium and sulfur with 100% nitrate nitrogen
· MPN : does not apply
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$49.99

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Jacks Professional 16-4-17 Hydro FeED 25 Lb
· Designed specially for hydroponically grown herbs (basil, cilantro, chives, parsley, etc) as well as lettuce and most vegetables.
· Cutting edge formula provides all the macro, secondary and micronutrients in a balanced blend.
· Includes our proprietary blend of iron chelates that keeps iron available even as the pH varies up to a high of 8.0.
· Also contains a significant level of soluble calcium and magnesium, for an all around balance of plant nutrition .
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$49.98

All Purpose 20-20-20 Fertilizer
· L x W x H : 1in. L x 1in. W x 1in. H
· Material :
· Color :
· Warranty :
· Size : 25 lb. bag
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$49.99

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Jacks Prof 77740 Mum Feed Plus Magnesium 22-5-16 Fertilizer, 25-Pound
· Mums are heavy feeders that respond well to additional magnesium, sulfur and iron
· The elevated iron levels found in the exclusive feed iron chelate system keeps iron available to the plant even if the pH rises during the crop cycle
· The additional 2 percent nitrogen in this formula reduces your fertilizer usage by approximately 10 percent
· Making this product is nutritionally effective and cost effective too
· Available in 25-pound bag
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$46.99

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