Crop Application · Nurseries & Propagation
EC below 0.3 mS/cm. The low-salt substrate for seed germination and cutting propagation.
Seed germination and cutting propagation demand the lowest possible salt stress. Native EC below 0.3 mS/cm and WHC of 60–70% makes coir the professional choice for propagation benches.
< 0.3
Native EC
60–70%
WHC
15 min
Activation time
The Challenge
What goes wrong when propagation substrate isn't clean enough.
>0.5
Native EC forces a conditioning step
Most propagation substrates carry native EC above 0.5 mS/cm. Seedlings at the germination stage are at peak salt sensitivity — any background EC narrows the margin before stress. Conditioning flushes add time and cost to every sowing cycle.
12+ hrs
Overnight pre-soaking required
Peat propagation blocks need overnight pre-soaking to fully hydrate. In a commercial nursery environment, that's a scheduling constraint that removes flexibility. You can't activate substrate and sow in the same session.
<50%
WHC drops during callus formation
Cutting propagation needs sustained WHC above 60% for callus to form. Peat dries faster than coir — any moisture drop during the callus formation window delays rooting by days, reducing throughput across the bench.
The Coir Fix
How EC < 0.3 and 15-minute activation changes propagation.
< 0.3
Sow immediately — no conditioning
Native EC below 0.3 mS/cm straight from hydration. Activate and sow directly in the same session. No flush, no pre-conditioning, no waiting. Every gram of first nutrition is under your control from day one.
15 min
Activate on the bench, immediately before use
Briquettes expand fully in 15 minutes. Blocks in 20. No pre-soak scheduling. Activate on the propagation bench exactly when you need it — morning, midday, or at sowing time.
60–70%
WHC holds through the callus window
Coir's 60–70% WHC window holds callus-forming conditions without constant irrigation monitoring. Less intensive management on the propagation bench — and better, more consistent rooting outcomes.
Propagation Type Guide
Key parameters per method.
Seed Germination
EC Target
< 0.3 native · no feed first 7 days
Drain %
15%
Fill 50–84 cell trays from hydrated briquette directly. Hold irrigation to wetting only — seeds need moisture, not water movement. No feed until first true leaf.
Cutting Propagation
EC Target
< 0.3 native · hold until callus forms
Drain %
10 – 15%
WHC 65–70% critical. Mist frequently. Do not push irrigation until roots emerge. Any water stress during callus formation delays rooting significantly.
Liner Production
EC Target
0.5 – 1.0 after establishment
Drain %
15 – 20%
Transplant into hydrated coir block for 4–8 week establishment. Coir's open structure allows clean intact root balls at transplant-out.
Activation Protocol
Hydrate. Test. Sow.
Both briquettes and blocks are ready in 20 minutes. EC always below 0.3 in standard conditions — no test required, no rinse, no wait.
01
Hydrate
Briquettes: 3–4 L clean water (EC ≤ 0.5), allow 15 min. Blocks: 15–18 L, allow 20 min. Both expand without heating. Break apart and aerate after full absorption — do not compact.
02
First feed
Hold nutrients for 5–7 days after germination or cutting strike. Native EC < 0.3 gives you complete control of first nutrition without lockout risk. Start feed at EC 0.5 and increase incrementally.
03
Transplant
Transplant when roots appear at drainage holes. Coir makes a clean, intact root ball — no root tearing at correct hydration. Minimal transplant stress and maximum carry-through at liner-out.
Agronomic Support
Substrate specification for your operation.
Share your crop, target EC, system format, and season length — we'll specify the right substrate and provide technical support for your first grow.
Talk to our agronomy team
Substrate guidance matched to your crop, system format, and target EC window.
Recommended Substrates
Ready to trial coir for propagation?
Substrate specification for your nursery bench.
Tell us your propagation method, tray format, and crop — we'll recommend the right briquette or block grade and confirm the activation protocol.