KNF Specific or Additional Maintenance for "Heavy Feeder" crops? (Sweet corn)
Top answer
From the KNF library
The nitrogen-heavy cycle is already covered above. The library adds soil prep and timing.
For a new bed, Drake's steps are to ridge the bed, soak biochar in fish amino acid, add IMO4, then water in maintenance solution plus minerals and a Jadam microbe solution. (Office Hours Ep. 20, 19:36) Poor soil needs four weeks to establish a soil foundation. (Cho's Solutions, p. 14) Drake says you can charge biochar with nitrogen or other nutrients aimed at the crop you're growing. (Office Hours Nov 2025, 29:31)
Once the corn is growing, spray weekly with the formula that matches its current stage. (Office Hours Ep. 30, 46:08) The chart gives 25 gallons per acre for spray or 100 gallons per acre for drench. (Office Hours Ep. 147, 36:54) Stop protectors in the last two weeks before harvest. They pull sugars out and reduce sweetness. (Office Hours Ep. 28, 36:18)
The library has no corn-specific ratios, yields, or corn learning resources.
Sources
- 19:36 Office Hours Ep. 20 (Feb 2022) — Crystal Vortex Brewer, Pig Pen Sizing, WCA/WCP for People · “Ridge the bed, soak biochar in fish amino acid, add IMO4, water in maintenance solution plus minerals, then a Jadam microbe solution.”
- 46:08 Office Hours Ep. 30 (May 2022) — The 9 KNF Solutions, Good vs Bad Microbes, IMO Indoor Collection · “Drake sprays weekly with whichever formula matches his crops' current stage”
- 36:18 Office Hours Ep. 28 (Apr 2022) — Beef Aminos, Coral Calcium, and IMO Troubleshooting · “Stop spraying protectors in the last two weeks before harvest or they'll pull sugars out and reduce sweetness.”
- 29:31 Office Hours (Nov 2025) — Biochar Retort Build, Food Canoe Raised Beds, Charging Char · “you can charge it with nitrogen or other nutrients targeted to the crop you're growing”
- 36:54 Office Hours Ep. 147 (Oct 2024) — LAB Aeration, Sugar vs Molasses, Madag Spray Ratios · “spray at 25 gallons per acre or drench at 100 gallons per acre”
- p. 14 Cho's Solutions · “Poor soil requires 4 weeks to establish”
Also discussed on Office Hours
Know the answer? Members answer, ask, and get their questions onto the Sunday show.
Sign in Become a member