With the combination of bonsai technology and jujube dwarfing culture technology, colorful and edible ornamental jujube bonsai can be created.
Nowadays, urban greening is more and more developed, and ornamental jujube bonsai is rare, which has a broad industrial prospect. Its production and cultivation are not complicated, and it is worth trying by family greening enthusiasts.
potted jujube dwarfing culture
1. Nutritive soil
Choose 4 parts of soil and 4 parts of decomposed organic fertilizer, mix well 2 parts, spray them into potassium permanganate solution, cover them with plastic film, and they can be used after 1 week. Flower pots and pottery pots are the best planting utensils.
Choose one-year-old grafted seedlings, which are more than 5 cm high, with developed roots, many fibrous roots, even branches and good tree shape, which is beneficial to the cultivation of bonsai. Cut off the excess fibrous roots and injured roots of jujube seedlings, cut off the diseased roots, put them in the center of the pot, fill them with nutritious soil, water them, and cover the mouth of the pot with a film.
2. Pruning
After planting, keep the trunk 3-4 cm high and branch out 3-4 main branches. Choose 2~3 secondary branches for each main branch, with appropriate secondary branches. Pruning of ornamental dates is mainly concentrated in early winter and early summer.
winter pruning should be carried out after defoliation, and the extended branches should be cut short, and the fruiting branches should be retracted. Summer pruning is mainly to erase too many jujube heads, and the branches left for plastic surgery need to be picked appropriately according to their size. By girdling, twisting the tip, pulling out and so on, the crown growth is controlled to realize dwarfing.
3. Water and fertilizer
When flowering, water is often sprayed at noon to keep humidity, which has the function of protecting flowers and fruits. One month before flowering and in the young fruit stage, the pot soil should be kept slightly wet.
Ornamental jujube has a high nutritional demand. In addition to applying some organic fertilizers when planting, it should also be applied with decomposed organic fertilizers in winter or when changing pots every year, and used with decomposed organic fertilizers in the growing season, usually before flowering and during fruit expansion.
Pruning methods of jujube trees
1. Pre-promotion and post-control
Pre-promotion: Jujube grows as fast as possible before the growth period (1-2 years) to form a canopy. Post-control: after the canopy is basically formed (3 years later), crown control measures are adopted to control the canopy expansion and promote the results.
2. plug and put down
plug: the height growth of canopy is controlled by shrinking-coring, that is, the height of canopy is controlled at about 2-2.5 meters. Put it down: at the same time as the jujube tree bears fruit, take measures such as short cutting to promote the jujube tree to bud.
3. Supporting branches
At the mature stage, for branches with small base angle and suitable orientation, use wooden sticks to support the branches to an ideal angle.
4. Pull branches
Use a thread or a thread to make the useful branches reach a certain angle and direction.
5. Ring cutting
Scrape off the ring branches on the main branches with scissors at the place 1 cm above the main buds, and go deep into the xylem to make the main buds germinate and sprout.
6. Bundle
Tie the trunk with iron wire 1 cm above the main bud, so that the iron wire penetrates into the phloem and reaches the xylem. Remove the iron wire in time after germination to prevent the trunk from being pulled in or broken.
7. Bud wiping
During the germination or growth period of jujube trees, useless buds can be erased, which can be done many times a year, and it is required to be erased with the germination rate.
8. coring
when the jujube grows to a certain length, the degree of coring depends on the intensity and size of the growth of the jujube head. Generally, the weak growth potential is strong, the strong growth potential is light, and the space is large, leaving 5 -7 secondary branches. The degree of coring depends on the intensity and size of the growth of the jujube head.
9. Qu Bie
When the bearing angle of the new branch is not very good, guide it to the required space before it is completely lignified.
1. Twisting the tip
Newborn branches with development space but unsatisfactory growth direction and angle should be twisted from the base by hand when they are semi-lignified, so that the branches can be bent to the ideal direction and angle.