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Calcium 25 - Apples Fruit Trees (4 Lb Jar) - F255

Calcium 25 - Apples Fruit Trees (4 Lb Jar)
Plant Nutrition

Plant Nutrition

  • In stock. Ships from our warehouse in Northern California.

A Foliar Calcium Supplement

The most effective foliar calcium concentrate we've seen. Extensive University test results show yield increases up to 30-50%. Some customers report Brix readings tripling with Calcium 25! Contains 25-30% Ca from natural salt deposits, and is so potent it is generally used at less than .5 lb/acre.

  • Example rates (cut these rates in half, at least, if using low-volume spray equipment): vegetable crops, use 4 lb/20 acres; fruit and nut trees, 4 lb/4-10 acres.
  • For small areas, use 1 tsp per gallon of water. Simply dissolve Calcium 25 in clean water and spray as a fine mist so that leaves stay wet for 10-15 minutes.
  • Apply 2 to 3 times, early to mid-season; can be used every 2-4 weeks.
  • Each pound treats at least 2.5 acres

Important Information for Certified Organic Growers

We do our best to update our product's organic status, however the status of any product can change at anytime without notice from the manufacturer. Please confirm that the product is allowed by your certifying agency and that it's still OMRI Listed® at

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