What Is the Price of Crown Daisy Seeds? A Detailed Guide to Growing Them
Crown daisy, also known as tonghao, penghao, haocai and so on, is an annual or biennial herbaceous plant of the genus Glebionis in the Asteraceae family. Its tender stems and leaves can be eaten as a vegetable. It originated in the Mediterranean region and other places, and has a cultivation history of more than 900 years in China with a wide distribution, but the cultivated area across the north and south is very small. Wild plants are found in Hebei, Shandong and other places. Now let us take a look at crown daisy seed prices and growing methods!
How much does a jin of crown daisy seeds cost?
The price of crown daisy seeds is about 15 to 20 yuan per jin, but prices vary greatly depending on seed quality, variety, market and purchase quantity. Cultivated varieties of crown daisy are divided by leaf into two types: large-leaf crown daisy and small-leaf crown daisy. Large-leaf crown daisy is tender in texture, low in fiber, good in quality and relatively heat-tolerant, but it has poor cold tolerance, grows slowly and matures slightly late, making it suitable for cultivation in southern regions. Small-leaf crown daisy has thinner leaf flesh, a strong aroma, thinner stems and branches, fast growth and relatively strong cold resistance, but it is not very heat-tolerant and matures earlier, making it suitable for cultivation in northern regions.
How do you grow crown daisy seeds?
1. Site selection and land preparation: Crown daisy is not demanding about soil, but it is best to choose neutral or slightly acidic soil with deep, loose and moist soil, rich organic matter, convenient drainage and irrigation, and good water and fertilizer retention.
2. Fertilizing and making beds: Before sowing crown daisy, apply enough decomposed base fertilizer, 1500 to 2000 kg per mu, plus 20 to 25 kg of diammonium phosphate, spread evenly in the field, plow and harrow level to make flat beds.
3. Seed soaking and germination: Germinate the seeds 3 to 4 days before sowing crown daisy. Soak the seeds in warm water at 30 degrees C for 24 hours, then rinse and dry them, and place them at 25 degrees C to germinate. Rinse them once a day, and sow once the seeds have sprouted.
4. Sowing method: In crown daisy production, direct sowing, broadcast sowing and drilling can all be used. For broadcast sowing, the seed rate is generally 3 to 4 kg per mu; for drilling, the seed rate is 1.5 to 2 kg per mu. After sowing, cover with a 1 cm layer of soil, harrow level and water.
Growing methods for crown daisy
1. Thinning at the right time: Crown daisy seedlings emerge about one week after sowing. Thin the seedlings when they grow to 2 to 3 true leaves. When thinning, do it directly by hand, pulling out the seedlings that are too dense, with a plant and row spacing of about 4 to 6 cm. Too sparse will affect yield.
2. Transplanting method: When transplanting crown daisy, use a sickle to lift the seedlings, put them into a prepared basin, then transplant them into the prepared field with a plant and row spacing of about 4 to 6 cm, then water thoroughly once, and apply a nitrogen fertilizer once 20 days after transplanting.
3. Water management: Pay attention to water management when growing crown daisy. Because temperatures are relatively low in winter and spring, watering should be properly controlled after emergence to prevent damping-off and downy mildew. Watering should also be based on seedling condition, generally once every 7 to 8 days.
4. Reasonable topdressing: Apply topdressing once when crown daisy seedlings grow to 10 to 12 cm, and then apply fertilizer once after each harvest. During the growing period, apply 1 to 2 applications of quick-acting nitrogen fertilizer with the water, using about 15 to 20 kg of urea per mu.
5. Harvesting: Begin harvesting when crown daisy plants reach about 20 cm in height and have 12 to 13 true leaves. It should not be too late, so as not to affect quality. At harvest, use a sharp knife to cut at the base of the stem while leaving 2 to 3 leaves, remove yellow leaves and tie into small bundles for sale.
Pest and disease control for crown daisy
1. Rhizoctonia rot
[Symptoms]It harms the base of seedling stems or underground roots. Initially, oval or irregular dark brown lesions appear. Diseased seedlings wilt during the day in the early stage and recover at night. The diseased part gradually sinks and constricts, and some gradually turn dark brown, finally drying up and dying, but without lodging.
[Control]In the early stage of disease, spray 38% oxadixyl-fosetyl-copper fungicide 800 times dilution, or 41% polyoxins · pyrimethanil 600 times dilution, or 20% tolclofos-methyl EC 1200 times dilution, or 72.2% propamocarb aqueous solution 800 times dilution, once every 7 to 10 days.
2. Black spot disease
[Symptoms]Small dark brown round spots appear on the leaves, then expand or the lesions join together into irregular large patches, with the edges slightly raised, and small black dots scattered on both sides of the leaves.
[Control]In the early stage of disease, spray 20 ml of 4% pyrimidine nucleoside antibiotic + 20 ml of 41% polyoxins pyrimethanil, diluted in 15 kg of water, once every 5 to 7 days, for 2 to 3 consecutive applications.
3. Sclerotinia rot
[Symptoms]When the stem base is infected, water-soaked spots first appear, then expand into light brown, causing soft rot or longitudinal cracking of the stem base. When leaves are infected, gray to grayish brown wet-rot large spots appear on the leaf surface, and in high humidity a cottony white mold appears on the spots, eventually causing the leaves to rot.
[Control]In the early to middle stage of disease, use 30 ml of 20% simeconazole prochloraz + 25 ml of oxadixyl fungicide, diluted in 15 kg of water, once every 5 to 7 days, for 2 to 3 consecutive applications.
4. Cabbage webworm
[Symptoms]Young larvae bore into and feed on seedlings and heart leaves. In mild cases they affect the growth of the seedlings; in severe cases they can cause the seedlings to wither and die, resulting in missing plants and broken rows. Older larvae not only gnaw on the heart leaves but can also bore into the stem pith and roots, and can spread bacterial soft rot.
[Control]At the peak of larval hatching, or when heart leaves are first seen to be damaged and silk webbing is present, apply 5% chlorfluazuron EC 4000 times dilution as a spray 2 to 3 times, taking care to spray the pesticide onto the heart leaves.
5. Aphids
[Symptoms]They often gather on leaves, tender stems, flower buds, terminal buds and other parts, piercing and sucking sap, causing leaves to wrinkle, curl and become deformed. In severe cases they cause branches and leaves to wither and even the whole plant to die.
[Control]Use 50 ml of 25% aphid-mite clear EC per mu, or imidacloprid series products at 1500 to 2000 times dilution, or 20% imidacloprid at 2500 times dilution, or 25% pirimicarb at 3000 times dilution for spray control.