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Asked by af187 ·September 11, 2022 ·20.2k readers

knf indoor

hi im growing indoors and going to use knf solutions to feed, I'm just wondering when making soilless media mix should I add amendments to the soil or will soil drenching and foliar feeding be sufficient? thanks

knf-indoor

Top answer

From the KNF library

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

In a zucchini trial, KNF seedlings were drenched before transplanting. Weekly foliar sprays followed, rotating two solution types. (Unravelling the Mysteries of KNF, p. 31)

The same research found that a second IMO application 14 days after the first raised yield. (Unravelling the Mysteries of KNF, p. 3) That was a field trial, not a soilless mix.

For indoor growing, Office Hours names KNF Protectors (LAB) as the best bet. (Office Hours Ep. 25, 58:22) Drake also recommends castings tea or fresh leachate at 1:200 to 1:1000. It feeds fungi and beneficial microbes. (Office Hours Ep. 99, 40:45)

The library does not say whether to mix amendments into soilless media, or how much.

Sources

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