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Asked by wilver316 ·July 6, 2018 ·18.7k readers

What to use when making FFJ

I have a question about FFJ and FPJ. So different plants will provide different benefits to our plants  and ourselves. So my question is if I’m making FPJ do I have to make it only using one plant and make several separate batches? can I combine different plants to make FPJ? And if I have to keep FPJ separated how do I apply it? Rotate the type I’m using or if I have multiple FPJ I mix them all in before I use it?

Top answer

From the KNF library

From the KNF library Drafted by Claude from Office Hours and the books · Sep 2026 · 4 sources

Drake keeps FPJ to one plant per batch, and the library agrees. (Office Hours Ep. 19, 50:59)

Sources differ on this. Cho's text on fruit juice says to use more than three species together when adding supplementary ingredients. (Cho, Theory, p. 77) The Hawaii manual warns of leaf burn from combining more than three ingredients in one FPJ. (Student's Manual, Basic Course, p. 37)

To apply separate batches, Drake matches the batch to the growth stage: (Office Hours Ep. 14, 17:40)

Each plant makes an FPJ that supports a different cycle of the plant. (Student's Manual, Basic Course, p. 37) Mix it 1:500 with water and apply once a week. (Student's Manual, Basic Course, p. 37)

The library does not say whether to blend separate FPJs into one tank or rotate them within a stage.

Sources

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