Field Management Methods and Technical Key Points for Stemona
Stemona is a traditional Chinese medicinal herb with a very long history of use in China, and it is widely cultivated in the eastern regions of China. The main medicinal part of Stemona is the root, which has a series of effects such as killing insects and relieving itching, and moistening the lungs to stop coughing. Because the wild population is continuously declining, Stemona is now mainly grown through artificial cultivation. So how should we manage Stemona when cultivating it? Below, the editor brings you the field management methods for Stemona. Let's take a look!
1. Thinning and Final Singling of Seedlings
After sowing Stemona, management should be strengthened to promote seed germination and seedling emergence. When the Stemona seedlings grow to about 3cm, the soil should be shallow-hoed once in time to improve the soil's looseness and permeability. Then carry out thinning work, removing the weakest seedlings and retaining strong, robust seedlings, so as to provide sufficient growing space for the robust seedlings. Then, when the seedlings grow to about 6cm tall, final singling should be carried out, combined with cultivating and weeding.
2. Cultivating and Weeding
Cultivating and weeding is an indispensable management task when planting Stemona. Because the root capacity of Stemona is not very strong, its requirements for soil are relatively high. If the soil becomes compacted, it will seriously affect the root's nutrient absorption of Stemona and inhibit its growth. Therefore, we should reasonably carry out cultivating and weeding according to the actual condition of the soil. Prevent soil compaction and avoid excessive weeds competing for Stemona's growth nutrients and water.
3. Reasonable Watering
Before the seedlings break through the soil, if there is drought, water should be given in time. After emergence, the amount of watering should be controlled to avoid lowering the soil temperature and affecting Stemona's growth. In spring and autumn, keep the soil moist to meet Stemona's water requirements. However, water should not be too much either, so during the rainy season we should pay attention to drainage work to prevent excessive water from causing waterlogging, which can lead to root rot and dead seedlings in Stemona.
4. Scientific Fertilization
Fertilization is very important for the growth of Stemona. During the entire growth period of Stemona, topdressing should be carried out at least about 3 times, and each topdressing should be combined with cultivating and watering. Around April, when Stemona is at the full seedling stage, carry out the first topdressing, mainly with farmyard manure, with the amount controlled at 1500kg/mu. Then carry out the second topdressing during the flowering and fruiting stage, increasing by about 500kg per mu. Finally, when Stemona's seedlings die back in autumn and winter, carry out the last topdressing.
5. Pest and Disease Control
Pest and disease control work is, of course, also essential. Common pests and diseases of Stemona include leaf spot disease, red spider mites, and so on. Pests and diseases will harm the growth of Stemona to varying degrees and have a great impact on the yield and quality of Stemona. Therefore, we must strengthen management, frequently check the growth condition of Stemona, and when abnormalities are found, promptly identify the cause and then take corresponding measures.
The above is a brief introduction to the field management methods for Stemona. The field management work of planting Stemona is very important and directly affects the planting benefits, so everyone must pay close attention. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!