Outdoor potted plants — Multi-zone Fe/Zn/Mg soil drench (monthly)
Zone: common · Stage: ongoing maintenance
Universal Fe + light Zn + Mg + biology soil drench for all outdoor potted Riva plants. Targets chronic alkaline-pot Fe lockout. Bacto-Line viable since NO Cu in tank.
Products (7)
| # | Product | mL/L | Role |
|---|---|---|---|
| 1 | Base-Line | 2.0 | Fulvic gel — chelator + mild acidifier |
| 2 | FERROS — EDDHA Şelatlı Demir (6% Fe) | None | EDDHA-Fe — alkaline-stable, primary chlorosis fix |
| 3 | DISSOLVINE E-Zn-15 (Zinc EDTA 15%) | None | EDTA-Zn 15% — proper Zn maintenance dose (was 0.4 g/L in initial recipe, corrected to 0.15 g/L after label confirmation 2026-05-18) |
| 4 | Topraq-Mg | 1.0 | Mg — chlorophyll boost |
| 5 | Fast-Line | 1.0 | Carboxylic acid — pH drop + uptake |
| 6 | Alga-Line | 2.0 | Chlorella biostimulant |
| 7 | Bacto-Line | 1.5 | Bacillus shield — LAST in tank |
Intentionally excluded
MKP — Same as Bat Guano — P excessplagron-bat-guano — P-rich; Riva soil P 168 lbs/A EXTREMEquadro-k-DRT — K not critical for outdoor potted plants here; separate K drench protocol exists for K-deficient zonestopraq-b — Conservative — skip B in maintenance drenchtopraq-ca — Soil drench + alkaline soil — no benefit + sulfate compatibility issuetopraq-cu — Kills Bacto-Line; not needed for Fe rescuetopraq-fe — Topraq-Fe (gluconic-chelated sulfate) less effective in pH 8 soil; FERROS EDDHA preferred for drenchTotal ~37.5 mL liquids + 7 g granules. Pair foliar Fe (gardenia-chlorosis-prevention-Fe-Mg-Mn) for fastest visible chlorosis correction (1-2 weeks); this drench is the LONG-LASTING fix (EDDHA active 2-3 months in soil). Skip in-ground plants (separate protocols). RECIPE CORRECTION 2026-05-18: Zn product confirmed as DISSOLVINE E-Zn-15 (Altıntar) at 15% Zn — dose reduced from placeholder 0.4 g/L to label-appropriate 0.15 g/L. For 5 L tank: 0.75 g Zn-EDTA (was 2 g).