Planting techniques of National Day Chrysanthemum in four Seasons

Planting techniques of National Day Chrysanthemum in four Seasons

Morphological characteristics and key points of cultivation

1. Morphological characteristics

Dwarf four seasons chrysanthemum originates from Europe, and the existing varieties in China are introduced from Holland, with yellow, red, pink, purple, white flower and red core and so on. In this experiment, the variety was selected from the introduced four seasons chrysanthemum through the process of artificial selection and natural hybridization. its flower and plant type were very similar to the national chrysanthemum, except that the national chrysanthemum only blossomed once on the National Day, and the dwarfing treatment should be carried out before the growing period; however, this variety does not need dwarfing and coring treatment, and the plant type is perfect and compact, and the flowering period is about 300 days from April 25 to December 20, so it is named the four seasons national chrysanthemum. Four seasons National Day chrysanthemum yellow and gorgeous, blooming like brocade, long florescence; many branches, stout stems, compact and low plant type, not easy to lodge; thick green leaves, small leaves, cauline leaves ovate or oblong-ovate, pinnately divided, apical lobes large, all lobes margin shallow, all leaves above glands and villous, gray-green below, more hairs; with the characteristics of short cultivation time, strong resistance, long flowering period, wide adaptability and so on.

2 main points of cultivation

The National Day chrysanthemum of the four seasons is not restricted by light and does not need short-day treatment, so it naturally blossoms all year round. Like light, like warmth, flowers are not afraid of the sun, and have the characteristics of shade tolerance, heat resistance in summer, cold resistance in winter, 10 ~ 35 ℃ can grow and bloom normally. After the seedling is big, burying rotten livestock manure or residue cake fertilizer or nitrogen, phosphorus and potassium multi-element fertilizer can be applied far away from the root, a small number of times, do not use too much fertilizer too often. Usually the seedling soil is dry and re-watered, it is appropriate to just water thoroughly each time, and do not use too much water too frequently, for fear of waterlogging, it is easy to grow if you use too much water, and it is better to water it in the early morning or evening in hot days in midsummer. The breeding ability is strong, and root seedlings can be planted from the roots at any time in spring, summer and autumn. Each tree can naturally propagate 20 ~ 30 roots and seedlings, and more than 50 roots can be produced. It takes about 20 days from pressing to flowering in summer and autumn, and it takes about 50 days from cuttage to flowering in summer and autumn, and the methods of foot bud split and new branch cutting can also be adopted, and the temperature of foot bud can be more than 5 ℃ at any time. New branch cuttings can be used in rainy season or autumn, the basic condition is moisturizing and shading.

According to its characteristics and cultivation points, it can be seen that the four Seasons National Day Chrysanthemum is the first choice for large green space vegetation, plant landscaping, flower beds, decorating courtyards, potted flowers or cut flowers to supply the market all the year round.