Fertigation—delivering liquid nutrients directly to plant roots via drip irrigation—is one of the most profitable ways to cultivate chili (Cili Fertigasi) and eggplant (Terung) in Sarawak. By isolating root zones from soil-borne pathogens and shielding nutrients from heavy monsoon leaching, fertigation delivers significantly higher yields per square foot than traditional planting.
Estimated Setup Cost Breakdown (500-Polybag System)
| Component / Material | Estimated Cost (MYR) | System Specifications & Purpose |
| Water Storage & Pump System | RM 800 – RM 1,200 | 250–500 gal poly-tank, 0.5–1.0 HP water pump, 120-mesh disc filter, digital timer |
| Piping Network & Micro-Drip Lines | RM 450 – RM 650 | 32mm HDPE main line, 16mm LDPE lateral sub-lines, 4mm micro-tubing & arrow drippers |
| Growing Media & Polybags | RM 700 – RM 950 | 16×16 inch UV-stabilized polybags filled with treated cocopeat/coir dust |
| Fertilizer Stocks & Testing Meters | RM 350 – RM 500 | 25kg Formulated Chili/Eggplant A&B fertilizer sets, digital EC meter, pH pen |
| Rain Shelter Structure (Optional) | RM 3,000 – RM 5,000 | Galvanized pipe frame with UV-resistant plastic roof (recommended for heavy rainfall zones) |
| TOTAL ESTIMATED INVESTMENT | RM 2,300 – RM 8,300 | Open-field vs. Protected Rain Shelter setup |
Core System Design Rules
- Closed-Loop Piping: Connect lateral lines back into a closed loop at the end of each row to equalize pressure, ensuring polybags at the end of the line receive the exact same nutrient volume as those near the pump.
- Filtration Protection: Never operate without a disc filter positioned immediately after the pump; un-filtered fertilizer residue and water debris will clog micro-drippers within weeks.
- Pulse Irrigation Schedule: Program your digital timer for 4 to 6 short feeding cycles per day (2 to 5 minutes per cycle) during peak daylight hours, rather than one long daily soak.
Essential Tips for Sarawak Climate
- Flush Cocopeat Thoroughly: Local raw coir dust contains high natural tannin and salt levels. Flush polybags with clean water until runoff Electrical Conductivity (EC) drops below 0.5 mS/cm before transplanting seedlings.
- Buffer Against Heavy Rains: If farming without a rain shelter, increase your A&B stock solution concentration slightly during rainy periods to compensate for natural dilution.
Source Fertigation Inputs Locally
Looking for complete fertigation starter kits, A&B fertilizer sets, or irrigation pumps in your area? Connect directly with verified AgTech suppliers across all 12 Sarawak divisions on SarawakAgro.com!