Handbook for Irrigation of Wine Grapes in South Africa

Figure 8.12 FIGURE 8.11. Menu for selecting the cultivar and the desired levels of PAW depletion during different phenological phases. In its present configuration, the model does not distinguish between cultivars. For this particular example, level of PAW depletion was constant at 75% from budbreak until harvest, followed by 90% in the post-harvest period.

Figure 8.12

FIGURE 8.12. Menu for entering irrigation system details. A pop-up menu is available to select the “System type”. Clicking on “Soil water content” allows entering real time data, i.e. if it is available. Real time irrigation and rainfall can also be entered if necessary.

246 CHAPTER 8 – PRACTICAL IRRIGATION SCHEDULING