Types of Dahlias:
Garnet, Pink Quartz, Orange Quartz, Moon Stone (Genie) y Red Stone
From planting to harvest: 13 weeks.
6 plants/ m2
Soil: Well drained, loose soil with no clusters with good aeration.
pH: 6.5 to 7.0
Netting: 3 levels. Minimium 30 x 30 cm
Leaves should not get wet. Very susceptible to bacterias. Use drip irrigation. Mantain humidity at field’s capacity when growing.
Pinch when the plant gets 4 internodes leaving 3 internodes.
The plant can flower on short days, but it can also induce with longer days extending to 16 hours of light to regulate flower induction. Add additional lightning when planting.
20-25⁰ C during the day.
Nights: 10 ⁰ C (minimum)
Disbud every stem by removing the lateral buds. Repeat the process several times. Flower quality can be affected if buds are left and harvest can be delayed. Use a 50% movable polishade. On very sunny days with high temperatures run the shade.
A general fertilization formula can be the following:
N: 120 ppm
P: 40 ppm
K: 160 ppm
Ca: 120 ppm
Mg: 60 ppm
S: 50 ppm
Mn: 2.5 ppm
Cu, Zn and B: 0.2 ppm
Production starts between 13 and 14 weeks after planting. Harvest the flowers early in the morning. Harvest when flowers have opened 25% - 30%. When harvesting, the Garnet and Pink Quartz varieties leave three knots on the stem (in the portion of the stem that remains on the plant). For the other varieties harvest them leaving two nodes.
1.Make a dip of the base of the stem in Quick Dip solution for (3sg) seconds
2.Hydrate in Hydra Flor clear ultra (1cm/lt). Mix well and add bulb 100 (0,3cm3 /lt). Keep in this solution for 6 hours.
3.Place a water tube with flower food solution at the end of each stem: 1 envelope /LT of water.
PESTS & DISEASES
•Virus; Bacteria Rottening; Mildew Powder
•Aphids; Thrips; Botrytis; Mites; Caterpillar