Plant Scale-I substrate weighing gutter: aluminium rail with weighing units carrying wrapped substrate slabs

Substrate Monitoring

Plant Scale-I and Plant Scale-II

Plant Scale-I · Plant Scale-II

Substrate weighing systems with 70 kg trays that track weight, drainage and supply and return EC/pH, so irrigation follows what the crop actually uses.

Tray (I): 2500 × 210 mm
Tray (II): 2040 × 300 mm
Standard Substrate Load: 70 kg
EC/pH Sensors: Imported from Germany

What It Is

Overview

Plant Scale weighs the substrate so irrigation follows measured data.

Plant Scale weighs a representative section of the crop and its substrate continuously. Changes in weight show how much water the plants transpire and how much drains away. Supply and return EC/pH show what the crop takes up. The software turns these readings into water content, drainage ratio and substrate volumetric water content, which feed the irrigation decision.

Plant Scale-I is a long rail-mounted gutter with a 2500 × 210 mm tray for growbags and grow slabs. Plant Scale-II carries pots on a 2040 × 300 mm tray beside its control cabinet. OXYGRO rates Plant Scale at +20% labour efficiency, +30% water and fertiliser efficiency, and +10% yield and quality.

Who It Is ForSubstrate growers, from greenhouse strawberries to drip-irrigated vine crops, who want irrigation timing based on measured transpiration and drainage rather than manual sampling.

Features

It measures transpiration, drainage ratio, weight-loss ratio and VPD to give a reliable basis for irrigation.
It shows real-time weight, EC/pH of the supply and return solution, and flow.
It integrates indoor radiation, PAR and plant sensors.
A smart irrigation decision model runs closed-loop autonomous irrigation.
The software runs on computer, mobile and tablet, and produces custom crop reports.

Specifications

Technical Data

Plant Scale-I and Plant Scale-II Specifications

Plant Scale-I and Plant Scale-II Specifications
Parameter	Plant Scale-I	Plant Scale-II
Tray Size	2500 × 210 mm	2040 × 300 mm
Measured Data	Substrate weight, drainage EC/pH, feed volume, drainage volume	Substrate weight, drainage EC/pH, feed volume, drainage volume
Optional Sensors	Solar radiation, air temperature/humidity, substrate, plant	Solar radiation, air temperature/humidity, substrate, plant
Calculated Values	Water content, drainage ratio, substrate VWC	Water content, drainage ratio, substrate VWC
Standard Substrate Load	70 kg	70 kg
EC/pH Sensors	Imported from Germany	Imported from Germany
Application	Conventional drip irrigation, semi-closed irrigation, greenhouse strawberries	—