How to water flowers in different seasons and six techniques for dwarfing cultivation of flowers

With the development of flower industry, miniaturized and compact potted flowers and bonsai are more and more popular, so the dwarfing technology of flowers shows more and more vitality.

The main techniques of dwarfing cultivation are:

I. asexual reproduction

The asexual propagation methods such as grafting, cutting and striping can achieve the effect of dwarfing, shorten the flowering stage, reduce the plant height and compact plant type. Grafting can achieve dwarfing by selecting dwarfing varieties. The plant height can be determined by considering the cutting time, for example, the chrysanthemum can be dwarfed and lodging can be controlled by cutting in late July. In addition, by using the bud cutting method, the tall dahlia can be planted in a basin with a diameter of more than ten centimeters, the plant height is only enough and the flowers are large and colorful. Chrysanthemums are dwarfed by horn buds.

II. Shaping and pruning

Through plastic surgery, remove the main branches to promote the germination of lateral branches when the plant is young, and then cut off too many poorly growing lateral branches, in order to achieve plump plant type, low plant, and improve ornamental. Rose, a string of red, rhododendron, foliage flowers and other pruning mostly use this method to dwarf. Daffodils are dwarfed by needling and carving.

III. Controlled fertilization

Timely application of phosphorus and potassium fertilizer and less nitrogen fertilizer to potted flowers can control the vegetative growth of plants and achieve dwarfing.

IV. Artificial dried koji

Artificially twist the branches, block the nutrient transport channel of the plant, slow down the plant growth rate, and achieve the low plant type of flowers. Generally, it is widely used in the production of small bonsai.

Use of plant growth regulators

1. Spraying a string of red plants with 40 × 10 ~ (- 6) 80 × 10 ~ (- 6) paclobutrazol (PP333) can shorten the internodes, reduce the leaf area and deepen the leaf color, thus changing the phenomenon of tall stems and thin stems, sparse flowers and leaves and serious detachment of red plants, and improve the ornamental value. In addition, goldfish grass, chrysanthemum and other flowers are also often used in dwarfing.

two。 When a bunch of red and other plants were treated with 100x10-6 DPC, the plant height decreased by 26%, the stem nodes became shorter, the number of branches increased, and the ornamental ability was improved.

3. The treatment of B9 with 1500 × 10-6 × 6 000 × 10-6 can inhibit the vegetative growth of morning glory, dwarf it by 61.5% to 67% during vegetative growth and 40.5% at full flowering, so as to make the plant type short, branches and leaves compact, and flowering concentrated.

4. 2500 × 10 ~ (- 6) CCC can inhibit the vegetative growth of petunia, which can dwarf its plant type and improve its ornamental ability.

VI. Radiation treatment

Some flowers can also be dwarfed by radiation treatment to change the growth status of the plant. For example, the treatment of daffodil bulbs with γ-rays can control the growth of daffodils and dwarf narcissus plants. When canna was treated with 60 ℃, the height of canna could be reduced by 30 cm to 50 cm, and the ornamental value could be increased.