4. What are the challenges for precision irrigation?

4.1 Towards an integrated soil-plant-climate approach

Irrigation control strategies are most often based on a single type of strategy based on either climate, plant or soil (figure 14 ). This type of single-component strategy has the advantage of being competitively priced, simple to implement and available in the form of ready-to-install equipment. However, it is not representative of the overall water status of the soil-plant-climate continuum. For example, a low soil water reserve does not necessarily imply a water demand by the plant on overcast days. Similarly, a high CWSI due to extreme weather...