Make the comparison explicit

Suppose Plot A produces 200 kg of saleable crop and receives 50 cubic metres of irrigation water during the recorded period. Dividing the stated output by irrigation delivered gives 4 kg per cubic metre. This is a simple illustrative ratio based on those definitions, not a substitute for a full agronomic water-productivity assessment.

Compare like with like

If Plot B produces 180 kg after receiving 30 cubic metres, its simple ratio is 6 kg per cubic metre. That does not automatically make it the better-managed plot. The crops, area, rainfall, soil, harvest period, product quality and other water sources may differ. The ratio is useful only when the comparison is understood.

Keep a practical log

Record plot identity, crop and planting dates, irrigation dates, water quantity where measurable, pumping time, rainfall observations and harvest output. Note unusual events such as equipment failure. Use the same units and time period. A missing or inconsistent record can make an apparently precise calculation misleading.

Turn observations into a test

Choose one manageable change and monitor it over an appropriate period. Investigate a suspected delivery problem, record the corrective action and compare conditions fairly. FAO’s reported dashboard handover is an implementation milestone. [7] A claim of improved output would need separate evidence about what happened after the intervention.

Sources & further reading

Research checked for this issue on 5 October 2026. Publication dates refer to the source; practical examples are labelled in the text.

  1. Food and Agriculture Organization
    WaPOR-based monitoring tool handed over to Iraq ↗
    25 May 2026; handover 21 May
  2. Food and Agriculture Organization
    WaPOR, remote sensing for water productivity ↗
    Undated resource page; version 2.0 history

Work photographs are representative examples of the activity described. They are not evidence of a specific TANEVOR, NVIDIA, FAO or BRIDGE project. Product photographs show the model identified in their captions.