Growth habit of Hemerocallis fulva
Hemerocallis Hemerocallis Hemerocallis, also known as Lily and Wuchou Girl, is a perennial herb of Hemerocallis in Liliaceae, which has the characteristics of short plants and long flowering period. The leaves are green, long and narrow. The flowers are big and fragrant. Jinan area is mainly used to decorate flower beds, road isolation belts, riverside green spaces and residential areas. The combination of leaf viewing and flower viewing is an excellent garden green flower.
Hemerocallis fulva has strong drought resistance, high temperature resistance, low temperature resistance and wide temperature range, and can be planted from south to north in China. Strong disease resistance, wide adaptability to soil, except for soil that is too acidic, too alkaline, too sandy and too sticky, it can generally be cultivated, and the PH value is preferably between 6.5 and 7.5.
Method for cultivating HEMEROCALLIS HEMEROCALLIS HEMEROCALLIS flower
1. Soil: HEMEROCALLIS HEMEROCALLIS does not require high soil quality and can adapt to different soils. But planting in too dry, too wet or barren soil will affect the development of plants, which is not good for flower type and plant type. It is best to plant in humus, hydrophobic and breathable soil.
2. Warm light: Hemerocallis fulva is cold-resistant and can be cultivated in the open field in North China in winter; Potted daylily should be placed in the greenhouse in winter, and the temperature should be adjusted at 2 ~ 4℃; Hemerocallis Hemerocallis likes to be exposed to the sun, and it is resistant to semi-shade, so it needs shade in summer.
3. Watering: Hemerocallis likes humidity and is drought-tolerant. In order to increase the number of flowers germinated in spring, water should be done as appropriate in the spring drought area. During the growing period, water should be gradually increased, the soil should be in a moist state, and water should be poured every two weeks to prevent the buds from falling off prematurely due to drought. Pay attention to water accumulation in July and August and drain it in time; Frozen water is poured quickly in winter, and seedlings emerge early in the second year.
4. Fertilization: It should be carried out in the second year after planting. Appropriate fertilization can be applied at seedling stage, and fertilization should be increased at bud stage. Fertilization is also needed in full bloom. Reduce fertilization in greenhouse cultivation in winter to avoid excessive growth. It is suggested to apply liquid fertilizer three times a year, respectively, after the new bud is about 10cm long, budding and flowering.
5. Pests and diseases: Hemerocallis are prone to rust, and others include leaf spot, leaf blight and anthracnose. Rust is harmful and can be controlled by adjusting plant spacing, cleaning and burning diseased plants and spraying chemicals. The main pests are red spiders and aphids, which can be controlled with targeted drugs.
Eliminate pests and diseases
Common diseases of HEMEROCALLIS HEMEROCALLIS include leaf spot, leaf blight, rust, anthracnose and stem blight. The main pests are red spider, aphid, thrips and liriomyza sativae.
Pest control: First of all, we should do a good job in agricultural control. After the day lily is picked, the aboveground part will die immediately. Cut and transport the daylily in time to reduce the source of bacteria and insects. Top dressing and overwintering cultivation of day lily should be done well to enhance its disease resistance; Update in time, rejuvenate; Selection of disease-resistant varieties and so on. Timely drug control, spraying 800 times of 75% chlorothalonil solution can prevent diseases, spraying 3000 times of Amylol can prevent pests.
Hemerocallis can also be sown and propagated. The seeds are collected, sown and germinated in the following spring. If they are sown in the next spring, they will not germinate and emerge in that year. Hemerocallis fulva is vulnerable to aphids, and 40% omethoate 1500 times solution should be sprayed for control.