Detailed Explanation of the 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 established, we still need to carry out daily management properly to ensure normal growth. Let's take a look at the field management methods for crown daisy below.
1. Controlling Temperature
Crown daisy is a temperature-loving crop, and the suitable temperature range for its growth is around 18 degrees. 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, late spring cold spells can easily occur, leading to 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. After the temperature gradually rises, uncover the plastic film, but when the temperature is too high, also pay attention to cooling it down in time.
2. Thinning Seedlings 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 excess weeds from the field, because weeds have far stronger growth ability than seedlings, and weed growth also requires a large amount of nutrients and water. If the weeds are not removed in time, all the nutrients will be snatched away by the weeds, causing the growth of the seedlings to be hindered.
3. Water and Fertilizer Management
Water and fertilizer are essential for 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 seedlings' water absorption. 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 for the seedlings. Then observe the soil fertility and the growth stage of crown daisy, and apply topdressing at the right time. Generally, a quick-acting nitrogen fertilizer should be applied once two weeks before harvest, and the amount used depends on the planting area. When fertilizing, pay attention to the use of nitrogen fertilizer and do not use 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 minor; in severe cases, it can lead to total crop failure. The more common diseases include damping-off and leaf spot, while pests include cabbage webworm and aphids. Strengthen field management, take preventive measures against various pests and diseases, and when any sign of pests or diseases is found, immediately identify the specific pest or disease and then carry out corresponding treatment measures, using various pesticides and insecticides reasonably. However, pay attention to the dosage, because 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. Growing 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, do not overwater, otherwise root rot can easily 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 for your reading and support.