Laboratory analysis for irrigation water

Before supplying recycled water for irrigation purpose, there should be performed an analysis of the quality of this water, interpreting results, search for solutions (i.e. good management practice, use of water treatment solutions and technology as provided by Lenntech) and monitoring frequently.

For example, water with low quality and big concentration of salt may require a reverse osmosis treatment system. Water with only minor quality problems may only require slight changes in supplemental fertility.

The procedure to take samples will affect the precision and reliability of the water quality data and determine its interpretation. it is important to monitor quality standards on a frequent basis to avoid potential problems.

Some general considerations to take into account when making lab test of irrigation water are listed below:

- Usually 1L of sample is sufficient

- All samples should be labelled to indicate date, location, time and other pertinent data.

- Take seasonal samples for representative data due to variation of water quality by climate conditions

- Take samples before and after the treatment plant for recycled water and other representative samples when appropriate such as after the storage tank, etc.

Recommendations for samples preparation & conservation

The following table compile the recommendations for samples preparation & conservation

Source of information: Valentina Lazarova Akiçca Bahri; Water Reuse for irrigation: agriculture, landscapes, and turf grass; CRC Press.

1. Plastic bottles are preferred because glass bottles may introduce boron to the samples.

The following table compile the recommendations for samples preparation & conservation:

Source of information: Valentina Lazarova Akiçca Bahri; Water Reuse for irrigation: agriculture, landscapes, and turf grass; CRC Press.