Where to buy Nicandra physalodes seeds? Detailed guide to raising seedlings

Nicandra physalodes is a Chinese medicinal herb native to Peru, and it is distributed in Yunnan, Sichuan, Guangxi, Guizhou and other parts of China. Because of its high medicinal value, large-scale artificial cultivation of Nicandra physalodes is now carried out in many areas. So where are Nicandra physalodes seeds sold? How do you raise seedlings? Let us take a look below.

Where are Nicandra physalodes seeds sold?

There are many channels for buying Nicandra physalodes seeds. You can buy them at local agricultural supply stores, seed stores, or online. Generally, it is best to choose a physical store, because you can see the goods directly, the seed quality is guaranteed, and after-sales service is also convenient. If buying online, it is best to choose a shop with high credibility and a good reputation, so that the quality of the seeds purchased is more assured.

How do you raise Nicandra physalodes seedlings?

1. Greenhouse seedling raising

Nicandra physalodes has a short growing period in the north, so seedlings should first be raised in a greenhouse (or glasshouse) 15-20 days before the field sowing period. If conditions permit, container-cup seedling raising can be used, or bed seedling raising can also be done. For container-cup seedling raising, sow 2-3 seeds per cup, cover with 0.5 cm of soil, press lightly, and spray with water. When the seedlings are 2-3 cm tall, thin out the excess seedlings, leaving only 1 plant per cup. When the seedlings are 8-10 cm tall, they can be transplanted to the field together with the cups.

2. Bed seedling raising

Make a seedbed 120 cm wide, open furrows 2 cm deep on the bed at a row spacing of 10 cm, and evenly broadcast the seeds in the furrows at a density of 1 seed per cm, cover with soil level, press lightly, and water. When the seedlings are 2-3 cm tall, thin out the excess seedlings at a plant spacing of 5 cm. When the seedlings are 10 cm tall, they can be transplanted.

3. Transplanting

On the ridges, open holes 15 cm deep at a plant spacing of 50 cm. If the soil moisture content is low, first fill the holes with water, and plant after the water has seeped in. Place the seedlings into the holes, firm the soil, and then water thoroughly once. The remaining seedlings can first be planted along the edges of the furrows for use in replanting. In dry weather, water appropriately every other day. After 4-5 days, the transplanted seedlings begin to recover and stand upright. If there are dead seedlings, replant them in time.

4. Field management

Nicandra physalodes plants consume a lot of fertilizer, so attention should be paid to fertilization. Apply compound fertilizer once after seedling recovery and once before flowering. At the same time, weeds should be removed in time, and intertillage and earthing up should be carried out along with weeding to prevent lodging. If the whole plant is used medicinally, except for those left for seed, remove the flower buds before flowering to avoid nutrient consumption. If the seeds are used medicinally, the flowers that bloom at the end of the season and the unopened buds should be removed so as to ensure obtaining more mature seeds. If the seeds are used for food, the flowering period can be appropriately extended, but seeds that are not fully mature are difficult to thresh, and often multiple seeds stick together to form seed lumps.

5. Diseases and pests

Nicandra physalodes has relatively few diseases and pests. Sometimes root rot and mosaic disease occur. The main pests are white grubs and aphids. Root rot causes the roots to rot. Drainage can be strengthened, diseased plants pulled up and burned, and quicklime powder scattered in the holes for disinfection to prevent spread. Mosaic disease is caused by a virus. After the plant is affected, growth weakens, internodes shorten, branching increases, leaves become small and wrinkled, the edges are wavy, and the leaves show yellow-green alternating mosaic blistering. The rhizome is deformed and thin, and quality deteriorates. After the seedlings emerge, spray 40% dimethoate 2000-fold solution or 80% dichlorvos 1500-fold solution for control. White grubs can be controlled by applying phoxim during land preparation, by manual catching, or by irrigation. For aphids, use 40% dimethoate 2000-fold solution or 50% fenitrothion 1000-fold solution or 80% dichlorvos 1500-2000-fold solution, spraying once every 5-7 days for 2-3 consecutive times.

6. Harvesting and storage

In summer, the flowers of Nicandra physalodes open continuously from bottom to top, and the flowering period is relatively long, so you must seize the opportunity and pick them promptly every day. After picking, dry them in the sun. The seeds mature from August to September. Ripe fruits do not fall to the ground, so after all have matured, they can be picked in a concentrated manner, spread on concrete ground and sun-dried until completely dry, then beaten to thresh, winnowed to remove impurities, dried appropriately again, bagged, and stored in a dry place. For the whole plant, in autumn cut the entire plant down, dry it in the sun, cut it diagonally into 1 cm long sections, and store dry.

The above is about buying Nicandra physalodes seeds and points to note in seedling raising. Nicandra physalodes is now artificially cultivated in many areas. In the planting process, in order to effectively ensure its yield and quality, we must do a good job of these management points. Do you have anything else to add about Nicandra physalodes?

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