Latest Key Points of Field Management Techniques for Crown Daisy
Crown daisy is a kind of vegetable, but as its nutritional value has been discovered, it has gradually come to be used as a medicinal herb as well. The taste of crown daisy is also different from other vegetables, with a pungent sensation, and it has various effects such as nourishing the spleen, stopping phlegm, and promoting bowel movements. Crown daisy has been cultivated in China for nearly a thousand years. Although the cultivation techniques for crown daisy are relatively well developed, we still need to carry out good daily management to ensure normal growth. Let us take a look below at the field management methods for crown daisy.
1. Temperature control
Crown daisy is a temperature-loving crop, and the suitable temperature range for crown daisy growth is around 18°C. However, crown daisy is generally planted after the Beginning of Spring, when the temperature has not yet fully risen, so if the temperature is not properly controlled, a late spring cold snap is likely to occur, resulting in weak seedlings or even dead seedlings. Therefore, after sowing, we should promptly cover the sowing surface with plastic film and press the film down firmly. Take good measures for cold protection and heat preservation to promote seed germination and seedling emergence. Wait until the temperature gradually rises, then uncover the plastic film, but when the temperature is too high, also pay attention to cooling it down in time.
2. Thinning and weeding
After the seedlings emerge, observe the growth of all seedlings, and promptly fill in gaps when weak or dead seedlings are found. Then, when the seedlings grow to about 9-11 cm, do the thinning work well, and determine the thinning spacing according to the different varieties. When thinning, remove the excess weeds in the field, because the growth ability of weeds far exceeds that of the seedlings, and weed growth also requires a large amount of nutrients and water. If the weeds are not removed in time, the nutrients will all be snatched away by the weeds, causing the growth of the seedlings to be hindered.
3. Water and fertilizer management
Water and fertilizer are indispensable things in the growth of crown daisy, and strengthening water and fertilizer management can improve the growth speed and resistance of crown daisy. After the seedlings emerge, water them in time to promote the water absorption of the seedlings. The frequency and timing of watering should be determined according to the growth condition of the seedlings. Keep the soil moist to provide sufficient water demand for the seedlings. Then observe the soil fertility, the growth stage of crown daisy, and so on, and apply topdressing at the appropriate time. Generally, about two weeks before harvest, apply a quick-acting nitrogen fertilizer once, with the amount used depending on the planting area. When fertilizing, pay attention to the use of nitrogen fertilizer; it must not be used too much, to prevent excessive vegetative growth of crown daisy.
4. Pest and disease control
Pest and disease control is work that must be done well throughout the entire growth period of crown daisy. The harm of pests and diseases to crown daisy is by no means slight; in severe cases, it can lead to a complete loss of the crown daisy harvest. The more common diseases include damping-off and leaf spot, while pests include cabbage webworm and aphids. Strengthen field management, do good preventive measures for various pests and diseases, and when any pest or disease phenomenon is found, immediately identify the specific pest or disease, then carry out corresponding treatment measures, and reasonably use various agents and insecticides. However, pay attention to the dosage; excessively high drug concentration will also inhibit the growth of crown daisy.
The above is a brief introduction to the field management of crown daisy compiled by the editor. Planting crown daisy not only requires certain cultivation techniques, but also requires everyone to do a good job in field management. The aspects mentioned by the editor must all be kept within a reasonable control range. For example, when watering, do not use excessive amounts, otherwise root rot is likely to occur, which is also very unfavorable to the growth of crown daisy. That is all for today's introduction. This article is for reference only. Thank you all for reading and supporting.