In spring and summer, the germination rate of safflower is very high. It can germinate about 25 days after sowing. Autumn and winter sowing can be carried out from November to December, and spring sowing can be carried out in the first ten days of March. It is better to soak in water for 1-2 days before sowing, or with gibberellin. Sowing should also choose good drainage, loose soil, and then on demand, covered with loess, growth of 2 - 3 years can bloom.
Choose the field soil with good drainage and fertility. The selection of branches should select the well-developed and full branches from the strong parent plants. You can choose the young branches or the old ones. Leave 1-2 leaves on the branches, and then cut them. Insert one half or one third of the branches into the soil, and then fully water them, seal them with film, and give proper light and air. About 20 days will sprout small roots and leaves, at this time can remove the film and transplant.
It is better to cut and join in spring and autumn. Similarly, select the full branches, choose the flat side as the long cutting side. After cutting, use the strip film for binding, and then cover the upper part of the scion with the film bag, so as to cut off from the dry air, improve the survival rate of grafting and extend the grafting period.
Bud grafting is generally carried out in summer and autumn. In the selected position of bud grafting, the cortex is opened, and the leaves under the buds are cut off on the branches of the scion to retain the petioles, then the buds are cut into bud pieces and embedded in the incision. After 7-8 days, they can survive. At this time, attention should be paid to drainage, and appropriate fertilization, as required, they can also be reshaped.
