The last ten days of March is the best season for sowing and seedling raising.
Before sowing, we need to soak the seeds with 0.3% potassium permanganate or 50% multi fungus wettable powder 500 times solution for 2 hours, and then soak the seeds with 40 ℃ warm water for 3 days. In this way, the wax on the surface of seed coat can be effectively removed, which is easy to germinate.
Peat, slag and fertile soil can be used as bed soil in the ratio of 1:1:2.
The suitable growth environment for the seeds of Strelitzia
The seeds were sown by 2.5 × 2.5cm, covered with soil of 03-1.0cm, temperature of 25-30 ℃, air humidity of 60% - 70%, and light of 5000-10000lx. Of course, this is the way of obsessive-compulsive disorder. If you can't do the above conditions, you can do something about it. After emergence, gradually strengthen the light.
The first transplanting can be carried out when the seedlings grow to two leaves and one heart after being unearthed. However, the soil should be disinfected before transplanting, with a plant spacing of 10 × 10 cm.
After transplanting, water shall be poured to prevent the seedlings from being exposed to the sun. After that, fertilize once every 5 days or so, and remove the shade shed only after autumn. Before frost, cover the film to keep warm for winter, and ensure the ventilation time of more than 2 hours at noon every day.
The seedlings can be planted after 2 years, and the best time is April to May. Two times of planting can be used. The first time of customization can be a little more intensive. After 1-2 years, the second time of planting can be carried out. Note that we'd better use the "product" type of planting and transplanting with the row plant spacing of 60 × 60 cm.
We should pay attention to the need to irrigate the water after transplantation. And remember to spray water on the leaf every day, add 0.2% of potassium dihydrogen phosphate or 0.2% of potassium permanganate into the water, transplanting and sowing seedlings generally start to bloom in 3-4 years.
