What are the key technical points for growing Chinese yam?
Chinese yam is an edible and medicinal vegetable that holds a very high status in China, and many people love eating it. Chinese yam is grown over a very wide range in China, and although growing it is simple, there are many things we need to pay attention to. There are also many key growing points that cannot be ignored. Below, the editor brings you the key points for growing Chinese yam. Let's take a look!
1. Loose soil
The degree of soil looseness is very important for the root and rhizome growth of Chinese yam; a suitable degree of looseness can promote effective elongation and swelling of the roots and rhizomes. When planting, the planting trench should be dug to a depth of about 1 m; sufficiently soft soil can effectively raise soil temperature and promote sprouting and emergence of the stem seed. If the soil is not soft enough, the soil becomes compacted, permeability is poor, and the yield and quality of Chinese yam are reduced. We can mix farmyard manure or crushed crop straw into the soil; this can both improve soil fertility and enhance soil permeability, creating a good growing environment for Chinese yam.
2. Apply sufficient base fertilizer
Base fertilizer is the key to ensuring the early growth of Chinese yam. In order to meet the nutrients needed for Chinese yam growth, the base fertilizer must be sufficient. The base fertilizer is mainly fully decomposed farmyard manure, with compound fertilizer as the main type; farmyard manure must be fully decomposed to prevent it from fermenting after being applied to the field and generating heat that burns the roots and rhizomes and affects Chinese yam growth. If conditions allow, an appropriate amount of biological bacterial fertilizer can also be applied, fully mixed with the soil and then placed into the planting trench. Then water thoroughly, and sow when the soil temperature rises to about 16°C. After sowing, cover with soil and mulch to improve soil heat retention, then remove the mulch in June to promote downward growth of the tubers.
3. Treat the seedlings
During growth, Chinese yam often becomes infected with some diseases and pests, such as root rot and damping-off, and these diseases can seriously harm Chinese yam growth, reduce yield, and affect the economic benefits of cultivation. Therefore, before planting, we should disinfect the Chinese yam seed; agents such as Shileshi can be used for soaking treatment, then spray a fungicide in the planting trench before sowing to reduce the phenomenon of dead plants during the seedling stage of Chinese yam. In spring, pest problems are relatively serious, so we should appropriately spray agents such as phoxim to control pests and avoid injury to Chinese yam plants.
4. Protect stems and leaves
When Chinese yam grows to the middle stage, the weather changes greatly, with mostly cloudy and rainy days, and humidity increases somewhat. This easily triggers various diseases and pests, so we should regularly spray agents such as Amistar for prevention, protecting the stems and leaves of Chinese yam from injury and avoiding effects on growth. About once every half month, about 3 times is enough. We should also carry out corresponding control according to the type of disease, promptly handle diseased plants, and avoid unnecessary losses. We should also pay attention to removing yam beans to prevent excessive nutrient consumption and increased cultivation costs.
The above is a brief introduction to the key points for growing Chinese yam. There are many matters to note in Chinese yam cultivation, all of which require us to do a good job of management during growing. We must prevent adverse phenomena during cultivation that affect cultivation benefits. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!