HOAGLAND'S SOLUTION: A Nutrient Feed

Culture Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

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Two types: "P.N." solution: to 25 gals, water add tablespoons of, Potassium phosphate (monobasic) 1; Potassium nitrate 4; Calcium nitrate 7; Magnesium sulfate (Epsom salts) 4; "T.C." solution: Ammonium phosphate (monobasic) 1; Potassium nitrate 5; Calcium nitrate 5; Magnesium sulfate 4; to both solutions add iron, boron, manganese, zinc and copper in minute quantities. White, Amer. orchid culture.(1939) 74; Logan and Cosper, Orchids.(1949) 125
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