Greenhouse for melons, tomatoes and strawberries
EC/pH fertigation and automatic climate for uniform, export-grade fruit
- melon crops per year
- 3
- melon crops per year
- EC accuracy (mS/cm)
- ±0,1
- EC accuracy (mS/cm)
- midday temperature
- −3–5°C
- midday temperature
Ideal for
- High-tech agriculture investors
- Farms and co-ops growing melons, tomatoes, strawberries
Problems solved
- Hand mixing makes EC swing and fruit uneven
- Greenhouses overheat at midday
- Hard to repeat a good season
System details
Four layers from field devices to the phone app.
- Devices
- Climate station, substrate sensors
- EC/pH fertigation
- Fans, cooling pads, curtains
- Edge (on the farm)
- Gateway runs VPD climate control
- Cloud platform
- Stage-based nutrient recipes, harvest forecasts
- Apps
- NG Farm, NG Trace for export lots
Packages and device list
Quantities scale with the size you choose. Any item can be adjusted in the formal quote.
| Item | Quantity | Unit price | Total |
|---|---|---|---|
| Vented PE-film greenhouse | 1,000 m² | 290,000 ₫ | 290,000,000 ₫ |
| LoRaWAN + 4G edge gateway | 1 unit | 12,800,000 ₫ | 12,800,000 ₫ |
| 4-in-1 LoRaWAN soil sensor | 2 unit | 4,800,000 ₫ | 9,600,000 ₫ |
| Greenhouse micro-climate station | 1 unit | 6,500,000 ₫ | 6,500,000 ₫ |
| 3-channel EC/pH fertigation unit | 1 set | 46,000,000 ₫ | 46,000,000 ₫ |
| 8-zone irrigation control cabinet | 1 set | 24,500,000 ₫ | 24,500,000 ₫ |
| Ø34 irrigation solenoid valve | 4 unit | 850,000 ₫ | 3,400,000 ₫ |
| Exhaust fan + cooling pad | 2 set | 9,800,000 ₫ | 19,600,000 ₫ |
| Outdoor 4K IP camera | 1 unit | 3,900,000 ₫ | 3,900,000 ₫ |
| NG Farm – farm managementRecurring/yr | 12 farm / month | 490,000 ₫ | 5,880,000 ₫ |
| Installation (12%) | 49,956,000 ₫ | ||
| Survey and training | 8,000,000 ₫ | ||
| Upfront investment | 474,256,000 ₫ | ||
Reference prices (VND), excl. VAT and installation. Final quote after a site survey.
Quote this solutionHow it's built
- 1
Design for local climate
Pick vented roofs and 6 m ridge height for hot regions; place fans with prevailing wind.
- 2
Footings, frame, film
Pour footings, raise frame, pull UV PE film, fit side curtains and insect net.
- 3
Substrate and drip
Place coir grow bags, drip lines and emitters for each plant.
- 4
Fertigation and climate
Install A/B/pH dosing, tanks, fans and pads; wire to the cabinet.
- 5
Sensors, cameras, configuration
Load stage recipes, climate thresholds and alert scenarios.
Rollout plan
- Week 1–2
Survey and design
Drawings and detailed estimate.
- Week 3–8
Greenhouse construction
Structure, film, substrate, irrigation.
- Week 9–10
Equipment and test run
Fertigation, climate, IoT.
- Week 11–12
First crop with an agronomist
An NG agronomist stays through harvest.
Evaluation and acceptance
Criteria are written into the contract and measured with real data in NG Farm.
| Metric | Target |
|---|---|
| Daily EC stability | ±0.2 mS/cm |
| Marketable fruit share | ≥ 85% |
| Share of log events recorded automatically | ≥ 70% |
| Devices online | ≥ 98% of the time |
FAQ
How long does the PE film last?
About 3–4 years depending on sun and wind; galvanised frames last 10+ years.
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