Fig. 9: Proportion of amount of runoff from applied irrigation water

E.C. and pH of irrigation water was fluctuating much (Fig. 8). The E.C. of applied water ranged most of the time between 1,2-2,0 and the pH between 4,5-7,0. The E.C. of runoff stayed most of the time between 1,4-2,4 and the pH between 6,0-8,5.

At the beginning of the growing period was the irrigation adjusted to no runoff due to the rooting down of the roots. After that was the amount of runoff increased. The amount of runoff from applied irrigation fluctuated very much and varied most of the time between 10-50 % runoff. In average had Sonata a higher runoff than Magnum (Fig. 9).

Fig. 9: Proportion of amount of runoff from applied irrigation water.

4.2 Development of strawberries

4.2.1 Plant diseases and pests

Some strawberry plants of Sonata were infected with phytopthora (Phytopthora cactorum). Infected plants were removed. Symptoms started to appear about one month after planting. However, the amount of Sonata plants with phytopthora was low and amounted 2 % in the HPS chamber and 0 % in the LED chamber. Magnum