Quality of irrigation water Why measure conductivity?
Irrigation water quality
The quality of the irrigation water may affect both crop yields and soil physical conditions, even if all other conditions and cultural practices are favourable. In addition, different crops have different irrigation water requirements. Fertilizer chemicals, which leach to water sources, may also affect the water.
Salinity as a problem
The main problem related to irrigation water quality is the water salinity. Water salinity refers to the total amount of salts dissolved in the water. High level of salts in the irrigation water reduces water availability to the crop (because of osmotic pressure) and causes yield reduction.
Testing your irrigation water
The most common parameters used for determining the irrigation water quality, in relation with its salinity, are EC and TDS. The electrical conductivity of the water can be determined in a quick and inexpensive way, using portable meters.
The result is displayed as EC in mS or TDS in ppm. Automatic temperature compensation. Replaceable electrode. Battery level indicator, stability indicator, automatic 2-point calibration. Find out more →
It is supplied with a high-quality electrode with platinum sensors providing very precise measurements from 0 to 200 mS. Easy to use, maintenance-free, waterproof and very robust for field or laboratory application. Automatic temperature compensation. Find out more →