Chilli Fertigation Project Cost for 1 Acre: The CAPEX and OPEX Math
Decision details
Fits if: New entrants who want one calculation sheet before committing their savings — how much capital, how much recurring cost, how much yield, and where the bleed point is.
Main drawback: The DOA cost tables are dated 2023 — 2026 input prices have moved; the 1-acre linear conversion over-estimates the fixed-scale infrastructure share; real yields are highly sensitive to disease and glut pricing.
Compare: mode (open vs SPH), polybag count, current seed and cocopeat prices, distance to market, and whether local labour or contract rates are available.
In this guide
Summary: chilli fertigation is a capital-heavy business: the DOA 2023 document puts open-field infrastructure at RM115,190 per hectare and operating costs at RM48,544 per season 1. The fertilizer component is measured at RM4.40 per polybag [source]. The A&B mixing protocol lives on the program page; this page calculates the whole project — including the honest 1-acre conversion.
How much does a 1-acre chilli fertigation project cost?
The DOA master table is written PER HECTARE; market demand is PER ACRE. Conversion: 1 acre = 0.4047 hectares.
Linear arithmetic: CAPEX RM115,190 x 0.4047 ≈ RM46,610; OPEX RM48,544 x 0.4047 ≈ RM19,647 per season. 1 Mandatory caveat: perimeter fencing, the pump house and channels do not shrink with area — the linear estimate under-prices the fixed portions.
Smallholder module estimate: a 1,000-polybag system starts from a 400-gallon tank + 0.75 hp pump ≈ RM1,148 (a 2008 number, already old).
What is in the open-system CAPEX?
Relay DOA 2023 breakdown (per hectare, 7,870 plants [source]): pump house 10x4.5x3 m (RM10,000); three 600-gallon tanks (RM7,500); 2 hp pump (RM800); 500 m channel (RM2,250); 2,200 m grip-lock fencing (RM22,000 — the single largest item); myGAP store (RM8,000); 6x6x4 m nursery (RM4,500); main + sub irrigation lines (RM25,000); 25 rolls of 95gsm weed mat (RM17,500).
Upgrading to a rain shelter (SPH): RM200,000 for 12,000 square feet (DOA 2020 estimate) — up to 70% of a protected farm’s initial capital. 1
What does each season’s operation cost?
Recurring items (relay, per hectare per season): cocopeat RM10 x 1,600 bags = RM16,000 1; 16" polybags RM0.60 each; F1 hybrid seed (Kulai class) RM80 x 12 packets; pesticide + fungicide RM1,600; trellising RM800. The fertilizer cost is measured: A&B sets at RM220, two sets per 100 polybags, RM4.40 per polybag [source] — 80 sets per hectare (relay) = RM24,000.
DOA variable total: RM48,544/hectare per season, excluding labour. 1
What yield per plant and per hectare?
Crop yield: 2.0-2.5 kg per plant over one 6-month cycle under good practice (MARDI Cili hybrids potentially 2.5) — a 1,000-polybag module = 2,000-2,500 kg.
At hectare scale (relay): open 10-24 MT/ha; SPH 30-40 MT/ha; the DOSM national average only 14.6 (2022) to 15.1 (2024) — that protection gap is the industry’s real story. The measured cultivar reference for Kulai: 15-20 t/ha [source]. The current selling price: Kulai RM17.02/kg on 29/9/2026 [source].
Why is SPH yield so much higher?
Tropical rain is open fertigation’s enemy: saturated polybags leave roots without oxygen, physical rain knocks flowers off, and splashing water spreads spores. An SPH closes all three channels at one price — RM200,000 (relay). The mode decision is a risk decision, not a taste: open = small capital, turbulent yields; SPH = large capital, stable yields.
What is the break-even price?
Two points in time (relay): the DOA 2021 model puts it at RM8.93/kg; the old ~2016 model at only RM3.49/kg — nearly a three-fold rise in five years, driven by input prices and wages.
The DOA 2021 financial model also derives IRR 75%, NPV RM299,592, a benefit-cost ratio of 1.23 and a 2-3-year payback (4-6 cycles) 2 — "best case" model numbers, not guarantees.
Its stress test: when local peak harvests collide with large imports, farm-gate prices fall to RM2-3/kg — below picking cost, and
loss cases of ~RM100,000 are documented when the price collapses from RM11 to RM3. 2
What is the biggest risk in a chilli fertigation project?
Market structure first: Malaysia’s chilli SSR is 38-52% — over half of demand is filled by imports, so local prices are highly sensitive to import approvals. Then biology: bacterial wilt (Ralstonia) brings 80-100% mortality with no chemical cure — a shared irrigation system spreads it to every polybag at once; anthracnose fruit rot costs 50-83% of marketable yield. These two localisations explain why "successful" and "bankrupt" exist in the same season.
How much labour does the project need?
Relay: 250-350 person-hours per hectare (a UPM study); the DOA 2023 model puts 4 full-time workers per hectare (base wages RM36,000 per season) 1 and contract picking + grading at RM17,707.50 per season 1. Automation stops at scheduling — picking, trellising and pest checks stay manual. A 1,000-polybag module by ratio is roughly half a worker’s day (derived, not an official number).
Read also: the chilli fertigation A&B program · the chilli fertilizer program · fertigation equipment · wholesale chilli prices
DR archive t32 (drarticles, DOA 2023 cost document received as relay, read 2026-10-02): open-system CAPEX RM115,190/hectare (7,870 polybags); OPEX RM48,544/hectare per season excluding labour; SPH RM200,000 for 12,000 sq ft (2020 estimate, up to 70% of initial capital); cocopeat RM10 x 1,600 bags = RM16,000; labour model 4 full-time workers/hectare at base wages RM36,000 per season + picking/grading wages RM17,707.50; Ralstonia plant mortality 80-100%. ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎ ↩︎
DR archive t32 (DOA financial model, relay, read 2026-10-02): breakeven RM8.93/kg (2021 model; ~2016 model RM3.49/kg); IRR 75%; NPV RM299,592; benefit-cost ratio 1.23; 2-3-year payback; yield 2.0-2.5 kg per plant per 6-month cycle (1,000-polybag module = 2,000-2,500 kg); documented ~RM100,000 loss cases when price collapses from RM11 to RM3; small 1,000-polybag system (400-gallon tank + 0.75 hp pump) ≈ RM1,148 (2008 figure). ↩︎ ↩︎
Frequently asked questions
How much does a 1-acre chilli fertigation project cost?
The DOA 2023 document gives RM115,190 CAPEX + RM48,544 OPEX for ONE HECTARE (7,870 polybags) [^ref:t32kos] — archive t32 relay. The linear conversion to 1 acre (x 0.4047) gives only a rough estimate: CAPEX ≈ RM115,190 x 0.4047 ≈ RM46,610 and OPEX ≈ RM48,544 x 0.4047 ≈ RM19,647 — fixed-scale infrastructure (pump house, fencing) makes the real number higher than the linear fraction.
What does the chilli fertigation fertilizer cost?
Measured: one A&B set RM220; two sets per 100 polybags per season = RM440 per 100 polybags, i.e. RM4.40 per polybag [source]. At hectare scale (relay t32): 80 sets = RM24,000/hectare per season.
What is the yield per hectare for fertigated chilli?
Measured for the Kulai cultivar: 15-20 t/ha [^ref:kulai]. Relay t32: 2.0-2.5 kg per plant under good practice (a 1,000-polybag module = 2,000-2,500 kg/6 months) [^ref:t32fin]; open systems 10-24 MT/ha versus 30-40 MT/ha under rain shelters; the DOSM national average is only 14.6-15.1 MT/ha.