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Soil Amendments

Q.Triple Phosphate Digging Small Holes

Zone 15218 | Anonymous added on April 22, 2024 | Answered

Reading through the article re superphosphate which I presume is the same a triple phosphate. Dig small holes and place the same amount in each. 1. How much per plant? 2. How many holes per plant? 3. How to determine “the same amount”? 1 tsp? 2 tsp? 4. I have many plants. By the time I complete one round it’ll be time to start the other. Perhaps rough up the soil around the root line, sprinkle 1 ounce and then smooth over? Thanks.

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Certified GKH Gardening Expert
Answered on April 27, 2024

You want to disturb the root area as little as possible is why the article suggests digging small holes. You can divide the amount of superphosphate you need to use among the holes. Use as many holes as needed to go around the plant. Triple phosphate has twice as much phosphorus as superphosphate. So follow the instructions on your package as to how much to apply.

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