Grow Journal Post by GrowJournal | Grow Journal
Everyone is quick to grab the Cal-Mag or the Nitrogen bottle when the canopy fades in week 4, but in high-performance rooms, you are likely misdiagnosing metabolic indigestion as starvation. When we push high PPFD and hi...
Everyone is quick to grab the Cal-Mag or the Nitrogen bottle when the canopy fades in week 4, but in high-performance rooms, you are likely misdiagnosing metabolic indigestion as starvation. When we push high PPFD and high EC, we flood the plant with Nitrates for velocity, yet we forget that Nitrate ($NO_3$) is metabolically useless garbage until it’s converted to Ammonium. That conversion process burns through Molybdenum like jet fuel. If you run out of Mo, the enzyme fails, and toxic, unconverted Nitrates stack up in the leaf tissue causing chlorosis. You see a yellow plant and think it's hungry, so you add more N, which is exactly like pouring gas into an engine with no spark plugs. The plant isn't empty; it's clogged.
Use this post as a starting point
Jump from public examples into diagnosis, start your own grow journal, or browse more community posts while this issue is fresh.