How to take an Irrigation Water Analysis Sample
IntroductionHigh Sodium, excess salinity and high bicarbonates are all big problems in irrigated farming. Knowing the chemistry of your water will help you better manage the water and your soil. The sodium adsorption ratio (SAR) for example, is a critical calculation for assessing the suitability of irrigation water and is based on the relationship between sodium, calcium and magnesium in your water.
With this information, a farmer may be able to select crops more resistant to saline waters. In addition to irrigation water analysis we can also perform Heavy metal analysis- which is identified as potential hazard to your production.
How to take an irrigation water sampleWater samples for irrigation water analysis must be collected in clean bottles, and care must be taken to prevent accidental contamination of the bottle or water sample during sampling and transportation to the water testing laboratory.
Samples should be taken every 6-12 months, depending on the stability of the source water. In general you need to take samples more often from rivers and surface water and less often for borehole water. Below are procedures for collecting samples from various water sources