Good Day, I believe I found an error in borax formula for how much to apply to 1000 sq ft, at the following link - https://www.canr.msu.edu/news/why_does_boron_show_up_on_my_soil_test_report. I mad two attempts to correct my boron in my blueberry batch about 75 plants and it declined. The report states 4 teaspoons per 1000 sq ft. When calculated based on the 9 lbs per acre mentioned I came up with 31.7 teaspoons or 3.2 table spoons. Please double check my math, I arrived at it doing the following: 1. Weighed 1 cup of borax = 5 oz 2. 1lb = 3.2 cups 3. 1 acre would get 28.8 cups for 9 lbs. (9*3.2) 4. 1 acre would get 144 oz (9*16) 5. 1000 sq ft / 43560 = .022957 ratio 6. 0.022957 * 144 oz = 3.305785 oz per 1000 sq ft 7. 16 tbls to a cup / 5 oz of borax per cup = 3.2 tbls/oz 8. 3.2 tbls / oz of borax * 3.305785 oz of borax per 1000 sq ft = 10.57851 tbls or 31.73554 teaspoons 9. for a doube check 28.8 cups for 9 lbs = 460.8 tbls 10 460.8 tbls * 0.022957 = 10.57851 tbls or 31.73554 teaspoons Let me know your thoughts, I found the report last year. When I was quesitoning the numbers today, I saw it referenced in a forum. Guess I am not the only one that tried to following it.