Ease of measurement. There are 16 US tablespoons in 1 US cup ( 8 US ounces.) Whatever solution in the reservoir is diluted 1:16. So if you want your final fertilizer concentration at 1 tablespoon per gallon, commonly used for tomatoes, flower beds, lawns and Vandas, the reservoir concentration is 16 tablespoons (1 cup) of fertilizer per gallon.
Because a teaspoon measure is 1/3 of a tablespoon, if you want your final concentration 1 teaspoon per gallon, the reservoir should have 1/3 cup per gallon. If you want 1/2 teaspoon per gallon, 1/6 cup per gallon. But nobody has 1/6 cup measures. Remember the concentrate is 16 times the final concentration. So to get 1/2 teaspoon per gallon final concentration, the concentrate should have 16 x 1/2 teaspoons or 8 teaspoons per gallon. That is two tablespoons plus two teaspoons. Level measures, not heaping.
Last edited by estación seca; 05-07-2024 at 07:27 PM..
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