How to Fertilize Crown Daisy? A Detailed Guide to the Correct Fertilization Method
Crown daisy (Glebionis coronaria) is a very popular wild vegetable in China, but with people harvesting it extensively, the wild population has declined sharply. Nowadays it is basically all cultivated varieties, and cultivation requires us to do a lot of management work well, among which fertilization is a very important point. So what are the fertilizer requirements of crown daisy? How should crown daisy be fertilized? What are the precautions? Let's take a look together below!
1. Fertilizer Requirements
The growth of crown daisy requires a large amount of nutrients, among which the demand ratio for nitrogen, phosphorus and potassium is the highest. The main edible part of crown daisy is the tender stem, and during cultivation the demand for nitrogen is relatively large, so when fertilizing we should focus on nitrogen fertilizer, supplemented with an appropriate amount of phosphorus and potassium fertilizer. During the seedling stage, crown daisy does not need much nutrition, but once it grows to about 9 true leaves, its fertilizer demand gradually increases. Therefore, we should adjust water and fertilizer management according to the growth of crown daisy to ensure sufficient nutrition for its growth. When the plant grows to about 19 cm, it can be harvested.
2. Apply Sufficient Base Fertilizer
As mentioned just now, the growth period of crown daisy is relatively short, its root capacity is strong, but the roots are not distributed deeply, and it has strong fertilizer tolerance. Therefore, sufficient base fertilizer should be applied before planting, and the amount of base fertilizer should be controlled according to the planting area. The base fertilizer is mainly fully decomposed farmyard manure, and then an appropriate amount of compound fertilizer is added. Spread it evenly on the soil surface, then carry out land preparation. If planting in a plastic tunnel, then the base fertilizer should be applied in the autumn of the previous year to ensure the soil can fully absorb the fertilizer nutrients and improve soil fertility.
3. Timely Topdressing
The growth cycle of crown daisy is about 40 days, so our topdressing work is very important. Although the growth cycle is short, about three topdressings should be applied throughout the whole growth period of crown daisy. The first is when the crown daisy seedlings grow to about 9 cm, with fertilizers mainly such as ammonium sulfate, to improve the growth vigor of the seedlings and enhance their resistance. Then when the seedlings grow 3-5 true leaves, topdress again, with fertilizers mainly fast-acting nitrogen fertilizer. Finally, when the seedlings grow to about 11 cm, topdress together with watering, with fertilizers mainly compound fertilizer. Because crown daisy can be harvested multiple times, we should topdress once after each harvest, and the topdressing frequency should be maintained at about 1 week to avoid reducing the quality of crown daisy.
4. Precautions
Crown daisy is a kind of leafy vegetable. Because of its short growth period, many vegetable farmers neglect the rational application of fertilizer when fertilizing. When fertilizing, we must not apply a single fertilizer excessively, especially nitrogen fertilizer. If nitrogen fertilizer is excessive, it will not only reduce the quality of crown daisy, but also increase its nitrate content, harming human health. Therefore, when fertilizing, we must pay attention to a reasonable nutritional ratio, pay attention to the application of phosphorus and potassium fertilizer, ensure the normal growth of crown daisy, and avoid the phenomenon of nutritional deficiency.
The above is a brief introduction to the fertilization methods for crown daisy. Crown daisy has very strong growth ability, so its demand for nutrients during growth is very large. Therefore, when planting, we must meet the nutritional needs of crown daisy, strengthen fertilization work, ensure the growth of crown daisy, and also pay attention to watering when fertilizing to prevent crown daisy from dying of dehydration and drying up. That's all for today's introduction. This article is for reference only. Thank you for reading and supporting.