Where can I buy Catalpa ovata seeds? What are the seedling-raising methods?

When it comes to Catalpa ovata, friends who have lived in rural areas for a long time are probably very familiar with it. Its edible parts can be seen in mountain forests, it has high ornamental value, its fruit can be used medicinally, and its wood is a good material for making furniture. So where can I buy Catalpa ovata seeds? What are the seedling-raising methods? Friends who want to know should read on!

1. Where can I buy Catalpa ovata seeds?

There are quite a lot of places selling Catalpa ovata seeds now. Generally speaking, local specialty seed stores and flower markets sell them, and some e-commerce online platforms also sell them. You can choose relatively reliable shops to buy from. Our Nongxun Network also provides Catalpa ovata seeds, and after-sales service is guaranteed.

2. What are the seedling-raising methods for Catalpa ovata seeds?

1. Seed collection

Catalpa ovata seeds generally mature in September-October and often remain on the tree through winter. Seeds can be collected in November. Select excellent individual trees that grow well, have straight trunks, open crowns, full fruit, and are at a vigorous age as mother trees for seed collection. After the collected fruit is dried in the sun, remove the fruit shells and other debris to obtain pure seeds. The seeds are oval, about 0.8 cm long, with white long hairs at both ends, and a germination rate of about 40%. Put the seeds into cloth bags and store them indoors in a disinfected, low-temperature, dry, and ventilated room.

2. Nursery site selection and land preparation

Catalpa ovata has small seeds, and seedling raising has relatively high requirements. Choose sandy loam soil that is loose, fertile, breathable, has good water retention and drainage performance, and is free of underground pests and pathogens. The sowing land is best plowed 1 to 3 times in autumn and winter, and 2-3 ks of 5% phoxim granules are applied per 667 sq m. Add the pesticide to fine soil, mix evenly, spread it into the nursery land, then plow to eliminate underground pests, promote soil weathering, store water and preserve moisture, and eliminate weeds, pests, and diseases; in spring, make beds 1 m wide and 10 m long and apply base fertilizer. Apply 15-20 kg of ferrous sulfate per 667 sq m, mix with 20 times fine soil, and evenly spread it into the seedbed to prevent and control seedlings damping-off disease.

3. Sowing

Catalpa ovata seeds germinate easily, and the sowing period is relatively long. Sow as early as possible when the spring soil temperature is suitable, so as to increase the growth time of the seedlings. Irrigate enough bottom water before sowing. The germination rate of Catalpa ovata seeds is relatively low, so the seeding rate can be larger, generally 5 g to 10 g per sq m. When the number of cracked seeds among the sand-stratified pregerminated seeds reaches more than 30%, drill sowing can be carried out. A 1 m wide bed is sown in 4 rows, with a sowing width of 10 cm. The soil covering thickness after sowing is about 0.5 cm, just enough to slightly bury the seeds, and press promptly. After sowing, cover with grass for shade, spray water in a timely manner, keep the bed surface moist, and seedlings can emerge in 7-10 days. Drill sowing not only facilitates ventilation and light transmission for the seedlings, but also makes management easier.

4. Tending and management of seedlings

During the growth process of the seedlings, strengthening tending and management of the seedlings is the key to cultivating strong seedlings. Catalpa seedlings grow slowly in the first month, so keep the nursery land moist, pay attention to loosening soil and weeding, and promote rooting of the seedlings. After 6 true leaves, they enter the rapid growth stage, so thin the seedlings as early as possible. It is advisable to leave 100-120 seedlings per sq m. Thinning should keep small ones and leave large ones, remove inferior ones and keep superior ones, thin dense ones and keep sparse ones, keep all seedlings evenly spaced, and it is best to do this on cloudy and rainy days. Combined with thinning, fill in missing plants to ensure uniform distribution of seedlings. During the whole seedling stage, topdress 2-3 times. The first time is in late May. This fertilization should be done in small amounts and finely. For each 10 sq m bed, apply 0.15 kg of urea as topdressing. Hoe a shallow furrow in the seedling rows, apply the fertilizer and cover with soil, and water after topdressing; the second fertilization is best in late June, using the same method, applying 0.3 kg of urea per 10 sq m bed. The third fertilization should be applied before the second growth peak of the seedlings, that is, in late July, apply 0.3 kg of compound fertilizer between two rows of seedlings per 10 sq m bed in furrows. This meets the needs of later seedling growth, accelerates lignification of the seedlings, and improves the cold resistance of the seedlings. After the seedlings shed their leaves in autumn, they can be dug up and heeled in in trenches, then divided and planted in the following spring. One-year-old seedlings can reach 60-80 cm in height.

Alright, that is all for what the editor wants to share with you today. If you want to buy Catalpa ovata seeds, you can go to a specialty seed store, or you can buy them on our Nongxun Network platform. If you do not know how to raise seedlings, you can also learn the relevant knowledge above.

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