Planting technology of kapok

Kapok (kapok) is a southern specialty and the city flower of Guangzhou, Kaohsiung and Panzhihua. Five petals with strong curves, surrounded by a dense bunch of yellow stamens, are tied up in a tight receptacle, each as big as a rice bowl, spreading downward from the top of the tree in the face of spring.

Cultivation mode

Propagate by sowing, cuttage and ramet. The capsule is collected before cracking, and the seed germination power preservation period is short, so it can be sowed with wet sand for a short time, strip sowing, soil mulching 2cm, the average temperature is above 20 ℃, and the seedlings can be produced in 4-5 days; cuttings are usually carried out in February-March or rainy season, with big branches with long 80~100cm and transverse diameter 1~2cm; insert deep 10~15cm into the seedbed and often keep the bed moist The ramet sprouted from the root of the mother plant, and it was easier to survive by cutting off a section of mother root and fibrous root.

Daily management

Supplementary connection

The survival rate can be checked after 10-15 days of grafting. The bud is in a fresh state, and the light touch of the petiole indicates survival; the browning of the scion, the difficulty of the petiole falling off and the softening of the hand-pinched scion indicate that the grafting did not survive and should be repaired immediately.

Loose belt

Let the scion bud break the membrane automatically after the grafting survived. The new buds of grafting sprouted slowly, and several new leaves were produced at first.

It is pink, and after about 2 ~ 3 weeks, the leaf color begins to turn green and unfolds; when the young leaves turn green and flatten completely, the bandaged plastic film can be loosened so as not to affect the growth of new shoots. However, the healing area of the graft interface can not be unbound immediately to protect the scion from damage.

Remove sprouting

For the seedlings that survive the grafting, the sprouts on the rootstocks should be removed at any time, so that nutrients can be concentrated to supply the new shoots that have been grafted and survived.

Other management

Timely ploughing and weeding and reasonable watering, emphasizing frequent application of thin fertilizer and heavy nitrogen fertilizer. The new shoots are mostly harmed by leaf beetles and ulnar moths, such as alder leaf beetles, Pistacia chinensis larvae and so on. When there is a small amount of harm, it can be killed manually, and chemical control is used when the harm area is large: 80% dichlorvos or 50% fenitrothion 800 times, 25% imidophos EC 800 times, 80% chlordimeform 1000 times, etc.