Detailed Explanation of the Key Field Management Techniques for Anemarrhena asphodeloides
Anemarrhena asphodeloides is a perennial herb of the Liliaceae family. Its rhizome can be used as medicine and has the effects of clearing heat and purging fire, relieving cough and eliminating phlegm, and calming the fetus. Currently, market demand is extremely high, and it is one of China's bulk medicinal materials. With the depletion of wild resources, the trend of artificial cultivation of Anemarrhena asphodeloides is growing. Doing a good job in field management during planting is an important measure to ensure yield and profit. Let's take a look at the key points of field management for Anemarrhena asphodeloides.
1. Thinning and final thinning of seedlings
Anemarrhena asphodeloides is propagated in two ways: seed propagation and division propagation. When using seed propagation, after the seedlings emerge, thinning should be carried out in time. During thinning, strong seedlings should be retained, and weak and diseased seedlings should be removed. The remaining seedlings after thinning can be transplanted elsewhere, or if dead seedlings appear after thinning, they should be replanted in time. When the seedlings grow to a height of 10 cm, final thinning can be carried out. The plant spacing for final thinning should be controlled at 7-10 cm, and can also be increased or decreased accordingly based on the growth of the seedlings and soil fertility. For generally fertile soil, it can be slightly sparser.
2. Loosening soil and hilling soil
When the seedlings grow 3 true leaves, the soil should be loosened and weeds removed. When loosening the soil, it should not be too deep, so as not to damage the roots of the seedlings and cause poor growth or death. Weeding should be done frequently, removing weeds as soon as they are seen, so as to prevent weeds from competing with the seedlings for growing space and nutrients. In addition, when there are too many weeds, pests and diseases are very likely to occur. When the plants grow larger, only 2-3 times of soil loosening and weeding are needed each year thereafter. Because the root system of Anemarrhena asphodeloides is relatively shallow and mostly grows in the topsoil layer, it will be exposed after rain or watering, so attention should be paid to hilling soil to prevent lodging.
3. Topdressing
If you want the plants to grow quickly and have high yield, fertilization is essential. For each mu, 4000 kg of decomposed farmyard manure and 20 kg of compound fertilizer should be applied in batches. After mixing them evenly, spread them beside the roots, and combine with soil loosening to cover them under the soil. In addition, after topdressing, water 1-2 times so that the fertilizer penetrates downward, which is beneficial for root absorption. Also, during the peak growth period of Anemarrhena asphodeloides, foliar fertilizer should be sprayed every half month, which can improve the disease resistance of the plants and promote rhizome growth and expansion, increasing yield.
4. Irrigation
After sowing, water frequently to keep the soil moist. During growth, water an appropriate amount according to soil moisture and climate changes. Water in time during drought to prevent the plants from lacking water, while during the rainy season, pay attention to drainage to prevent root rot. Before overwintering, water well for overwintering to help the plants survive the winter safely. In the spring of the following year, after the plants sprout, water appropriately during drought.
The above is an introduction to the field management techniques for Anemarrhena asphodeloides. We hope it can help you. To learn more related knowledge, please stay tuned to us.