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Hydroponic Cultivation Environment Monitoring

Hydroponics is a soilless cultivation method where plants grow in a nutrient-rich water solution, with their roots either submerged or intermittently exposed to the solution. Unlike traditional farming, hydroponics delivers nutrients directly to the roots, maximizing growth efficiency.

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Hydroponics sensor Soilless cultivation Agricultural sensor Soil sensor-BGT Water Quality sensor

Product Description

Hydroponic Nutrient Solution vs. Traditional Soil

Aspect	Hydroponic Nutrient Solution	Traditional Soil
Nutrient Delivery	Direct absorption; no competition from weeds/microbes.	Slow diffusion; nutrient loss due to leaching.
Water Efficiency	Recirculated system uses 90% less water than soil.	High evaporation & runoff waste.
Growth Speed	30–50% faster due to optimized nutrient access.	Limited by soil quality & root expansion.
Disease Risk	Lower risk of soil-borne pathogens (e.g., nematodes).	Prone to fungal/bacterial infections.
Space & Scalability	Suitable for vertical farming and urban agriculture.	Requires large land areas.

Hydroponic Environmental Monitoring Sensors

Precise control of water chemistry and ambient conditions is critical. Key sensors include:

(1) Nutrient Solution Monitoring

Sensor	Purpose	Target Range
EC Sensor	Measures nutrient concentration (electrical conductivity).	1.0–3.0 mS/cm (crop-dependent).
pH Sensor	Maintains optimal acidity for nutrient uptake (e.g., lettuce: pH 5.5–6.5).	±0.1 accuracy.
Dissolved Oxygen (DO)	Ensures root oxygenation; prevents rot (DO >5 mg/L).	Optical/electrochemical.
Water Temperature	Affects root health and oxygen solubility (ideal: 18–22°C).	±0.5°C accuracy.

(2) Ambient Environment Monitoring

Sensor	Purpose
Air Temp/Humidity	Prevents condensation (humidity 50–70%) and heat stress.
CO₂ Sensor	Optimizes photosynthesis (800–1200 ppm for fast growth).
PAR Sensor	Measures photosynthetically active radiation (e.g., leafy greens: 200–400 μmol/m²/s).

Small-Scale Hydroponic Sensor Setup (NFT System for Lettuce)

System Specifications:

Type: Nutrient Film Technique (NFT) with 12 lettuce plants.
Area: 2 m² indoor grow tent with LED lighting.
Automation: Cloud-based monitoring + automated pH/EC adjustment.

Recommended Sensors:

Sensor	Model Example	Qty	Notes
EC/pH Combo Sensor	BGT-WMPS(O1)	1	Submerged in nutrient reservoir.
DO Sensor	BGT-WDO(K)	1	Calibrate weekly.
Water Temp Sensor	BGT-WMPS(O1)	1	Attached to reservoir wall.
Air Temp/Humidity	BGT-WSD2	1	Mounted at canopy height.
CO₂ Sensor	BGT-WSD2	1	For enclosed spaces.
PAR Sensor	BGT-PAR1	1	Positioned near leaves.