What are the latest precautions for growing Asparagus cochinchinensis?
The tubers of Asparagus cochinchinensis are a common traditional Chinese medicine with extremely high medicinal value. It can be planted in spring and autumn; in spring, planting generally begins at the end of March, while in autumn, it is best to plant from the end of September to early October. Many growers of Asparagus cochinchinensis encounter some very common problems when planting it. Today, the editor will show you some precautions to note when planting Asparagus cochinchinensis.
1. Soil
The selection and improvement of soil are the foundation of the yield and quality of Asparagus cochinchinensis. So when choosing a planting site, we need to consider the growth habits of Asparagus cochinchinensis, and then choose a place with strong soil permeability, sufficient fertility, rich organic matter content, good drainage, and convenient irrigation for planting. Of course, it is best if the soil contains rich humus, which is beneficial to the growth of Asparagus cochinchinensis. At the same time, we can also add some leaf mold and mix it in when preparing the land for planting.
2. Temperature
Asparagus cochinchinensis also has certain requirements for the temperature of the planting site. The temperature suitable for the germination of Asparagus cochinchinensis is generally around 16 to 18 degrees, but the temperature suitable for its growth is around 10 to 15 degrees. The lowest temperature for planting Asparagus cochinchinensis must not be lower than 5°C, otherwise the plants will be frostbitten, so we need to cool things down in summer, usually by watering to achieve the purpose of cooling. In winter, however, good insulation measures need to be taken; generally, plastic film can be covered over the field to keep it warm, or a greenhouse can be built.
3. Humidity
Asparagus cochinchinensis has the characteristics of liking light and liking semi-humidity, which means that maintaining soil humidity is also an issue we need to pay attention to. The medicinal value of the tubers of Asparagus cochinchinensis is its greatest use value, and its tubers are fleshy roots. If the soil humidity is too high, it will cause root rot, seriously affecting the yield and quality of Asparagus cochinchinensis. But if the humidity is insufficient, the tubers of Asparagus cochinchinensis will not grow large, and are prone to drying up and turning yellow. So we should water reasonably and keep the soil humidity at around 45 to 50 percent.
4. Nutrients
Asparagus cochinchinensis has a relatively large demand for nutrients, so during its growth process, we should fertilize scientifically and not apply too much nitrogen fertilizer, which would cause the plants to grow leggy. From the early to middle stages of the growth of Asparagus cochinchinensis, generally topdressing is needed about once every half month, usually by irrigation, mainly by diluting nitrogen fertilizer and potassium fertilizer and applying them as liquid fertilizer. In the middle and late stages, however, potassium fertilizer and phosphorus fertilizer are mainly used to promote tuber growth, and boron fertilizer should also be used in combination.
5. Density
The planting density of Asparagus cochinchinensis is something many people pay relatively close attention to. Many people grow Asparagus cochinchinensis as pure field planting, but some plantings are intercropping with Asparagus cochinchinensis. Generally, the density for pure planting of Asparagus cochinchinensis is 30 cm between rows and about 20 cm between plants. For intercropping, it is generally about 50 cm between rows and 25 cm between plants, so that other crops can be intercropped in the 50 cm intervals to increase economic returns.
Asparagus cochinchinensis is actually a relatively simple medicinal herb planting project, but during the planting process, we still need to pay attention to these issues raised by the editor. At the same time, there are some less common issues that everyone also needs to note. If you still have other questions, you can consult the editor directly.