1 gram of actual boron per 20 x 20 area. Boric acid is not pure (only 16%B)so you would use 6.25 grams.BACKCOUNTRY said:According to wikpedia, a hectare is 10,000 square meters, or 107,639 square feet.
107,639 feet divided by 270 grams, equals 1 gram of Boric acid per 398.66 square feet?? A area approx 20'x20'??
Is my math right?
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