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KeyPlex Citrus HG      
A unique formulation of chelated micronutrients, enhanced alpha-keto acids, and humic acid designed for foliar application as a supplement to citrus fertilizer programs.

KeyPlex Citrus HG is a formulation of micronutrients most often found deficient in citrus, plus nitrogen for accelerated uptake. It contains alpha-keto acids, which may facilitate utilization of micronutrients, and increase resistance to environmental stress. It also contains humic acid, which may enhance soil micronutrient availability. KeyPlex Citrus HG is formulated for foliar application to prevent and correct micronutrient deficiencies when used as directed. 


Additional Product Information

  • Applications of KeyPlex Citrus HG on a routine basis may reduce tree stress, and increase growth and vigor, so the tree can produce healthy fruit that tastes great!
  • University of Florida IFAS recommends that maintaining proper nutritional levels in citrus may promote resistance to certain diseases of citrus.**

What's in the product?

KeyPlex Citrus HG 32oz. Guaranteed Analysis:
Total Nitrogen (N)
4.00% Urea Nitrogen (N)
Total Magnesium (Mg)
1.25% Water Soluble Magnesium (Mg)
Sulfur (S)
2.00% Combined Sulfur (S)
Boron (B) 0.01%
Iron (Fe)
1.00% Chelated Iron (Fe)
Manganese (Mn)
0.57% Chelated Manganese (Mn)
Molybdenum (Mo) 0.0015%
Zinc (Zn)
0.05% Chelated Zinc (Zn)
Derived From: Urea, Magnesium Sulfate, Manganese Glucoheptonate. Zinc Glucoheptonate, Iron Glucoheptonate, Sodium Borate and Sodium Molybdate.

Alpha-Keto Acids
0.032% Yeast Extract Hydrolysate from Saccharomyces Cerevisiae
Humic Acid 0.29%

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Micronutrient Application Instructions

Add 4 fl. oz. (8 tablespoons) to one gallon of water and mix thoroughly. Spray leaves to the point of run-off. For proper nutritional maintenance this product should be applied every 4-6 weeks during the growing season. The first (dormant) application should be applied at the earliest blossom stage (pinhead size bud).

NOTES: #1. Spray with caution around concrete patios, walkways, and other stainable objects—may cause staining. #2. Relocate household citrus to an outside stain resistant area during application. Allow time to dry, and relocate back to original location.  Spray with caution around concrete patios, walkways, and other stainable objects – may cause staining.

**Source: Plant Nutrients for Citrus Trees an IFAS published document #SL 200. First printed: January 2003. Reviewed February 2009.

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