How to Grow Millettia speciosa? A Detailed Explanation of the Key Cultivation Techniques
Millettia speciosa is a traditional Chinese medicinal herb with powerful medicinal effects. Due to high market demand, but with wild resources on the verge of exhaustion, artificial cultivation has arisen and expanded rapidly within a few years. Many people have achieved prosperity by growing it, so more and more people are drawn to it. So how should Millettia speciosa be grown? Let's find out together.
1. Site Selection and Land Preparation
Millettia speciosa is a deep-rooted plant with strict soil requirements. It is suitable for sandy loam with deep soil layers, loose texture and good drainage, so when deciding to grow it, observe whether the local soil and field conditions are suitable for the growth of Millettia speciosa. After selecting the plot, when deep plowing it, apply more than 5000 kg of decomposed farmyard manure and 50 kg of ammonium bicarbonate per mu, then harrow finely and level, then open furrows and form ridges. The ridges are required to be 40--50 cm wide and about 25 cm high. To prevent the ridges from collapsing on rainy days, use tools to pat the two sides firm.
2. Sowing
Millettia speciosa cultivation uses the seed propagation method. Collect the pods when they mature, take out the seeds after drying, and select plump, mature, undamaged and disease-free seeds for sowing. Before sowing, soak the seeds in warm water at 40-50 degrees for several hours, then place them in an environment at 40 degrees and 85% humidity to germinate. When the seeds sprout, they can be sown. When sowing, seeds can be dressed with a chemical agent for sterilization to reduce the threat of disease. Open a furrow on top of the ridge and sow, with a seed spacing of 3-5 cm, cover with 3 cm of soil after sowing, and use about 200 grams of seed per mu.
3. Seedling Stage Management
When the seedlings grow to 1-2 true leaves and when they grow to 2-3 true leaves, thinning must be carried out once each time to increase the ventilation and light penetration of the seedlings so that they emerge uniformly. After that comes final thinning. During final thinning, control the seedling spacing at 7-10 cm, and remove weak seedlings, diseased and dead seedlings, and excessively vigorous seedlings, keeping seedlings of consistent size for final thinning, which makes management easier. The spacing at final thinning determines the time to market. If you want to market early, the spacing can be left larger; if you want to market later, the spacing can be denser.
4. Field Management
Millettia speciosa grows slowly. During the seedling stage there are many weeds, which affect its nutrient uptake and make growth even slower, so carry out intertillage and weeding reasonably according to the field and seedling growth conditions. In addition, topdressing should be done 3 times during the growing period. The first time, when the plants have grown to more than 30 cm, apply 10 kg of urea per mu; the second time, during the peak growing season, apply 8 kg of urea per mu, which can be combined with watering so that the nutrients can be absorbed as quickly as possible; the third time, when the fleshy roots are swelling, apply phosphorus and potassium fertilizer to increase yield, with 10 kg of diammonium phosphate and 5 kg of potassium sulfate per mu.
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