Tillering propagation technique of Cycas

The cycad tree is simple and dignified, and the leaves are evergreen and green all the year round, always full of vigor and vitality, giving people a kind of positive enlightenment, which is favored by everyone. Suitable for potted plants to appreciate and decorate public places. The reproduction of cycads includes seed reproduction and tillering reproduction. Because it is difficult to get seeds, tiller propagation has become the main way of family pot propagation.

1. Tillering time: from January to February in early spring.

Second, take tillering buds: the sturdy cycads cultivated for many years often sprout many tillering buds at the base of the stem and cadres. Among the many tiller buds, tiller buds with more than 3 years or 4 to 5 leaves should be selected as propagation materials. Because this kind of tillering bud has a high degree of Lignification, contains a lot of nutrients and strong adaptability, it is easy to take root and survive. Do not choose tender tiller buds for reproduction, otherwise it is perishable and difficult to succeed. The method of taking buds is to cut the tiller buds from the root connected to the mother plant with a sharp knife. Cut the bark of the stem as little as possible. The cut tiller buds should be treated differently according to whether they take root or not: those that have taken root can be directly planted in the culture soil rich in humus, good drainage and strong air permeability; those that have not taken root should be put in a cool and ventilated place for 2 to 3 days, and then root-promoting treatment will be carried out after the incision is slightly dry.

Third, root: the tiller buds that have not taken root should not be planted directly into humus soil, but should be planted in plain sand. The planting depth is 1pm 2 of the height of tillering buds. In order to prevent the wound from rotting, plant ash, charcoal or sulfur powder should be applied to the wound before planting. After planting, water once to keep the sand moist, but do not accumulate water. After planting, put it in the indoor light place for maintenance. New roots germinated in about 2 months, and 1 or 2 new leaves were produced in 3 to 4 months.

4. Transplanting: when the new leaves are all unfolded, they should be moved into the culture soil for management, otherwise, the nutrition needed for plant growth can not be provided in the plain sand. The culture soil is composed of 45% rotten leaf soil, 20% mycorrhizal soil, 30% river sand and 5% calcium magnesium phosphate fertilizer. Never use clay as culture soil, otherwise cycads will rot in the roots due to stagnant water caused by poor drainage.

Fifth, management: the management of tiller reproduction of cycad is mainly the management of light, water and fertilizer. In light management, cycads like light, especially in the period of leaves must be placed in the sun, otherwise the new leaves are slender and reduce their ornamental value. But afraid of hot sun exposure, in water management, it avoids stagnant water, so the cultivated soil should be dry rather than wet, and should be treated according to the principle of "no dry, no watering". Always keep the soil moist during the peak growing season, and spray water on the leaves 2 to 3 times every morning and evening. In terms of fertility management, cycads are resistant to barren and do not require high fertility conditions. The pancake fertilizer and water were applied once a month or so during the seedling period, and the external topdressing of 0.3% urea liquid fertilizer, 0.2% potassium dihydrogen phosphate liquid fertilizer or 0.1% ferrous sulfate liquid fertilizer was carried out in turn every 20 days in the growing season.