How to Select Celery Seeds? A Full Guide to Seedling Raising Methods
Celery is a very common home-style vegetable, with rich cooking methods, and it is green and nutritious, with a good effect on improving gastrointestinal function. At present, many households or vegetable gardens have the habit of growing celery, because its daily management is relatively simple, so it can not only be eaten by oneself, but also be sold on the market to earn income. So in the process of growing celery, how should seeds be selected and seedlings raised? Let's find out together.
Key Points for Celery Seed Selection
Celery can generally be divided into two types, Chinese celery and Western celery. When choosing what to grow, you should choose according to local market demand and your own foundation of growing techniques. In addition, you should choose celery varieties according to different planting times. For example, the planting time for spring celery is January in the north, and January to March is the seedling-raising period; summer celery is raised in open fields from April to May each year; autumn celery is sown from June to July in the north, and can be appropriately delayed in the south; winter celery must be grown in places with higher temperatures. South of the Yangtze River basin, it can be sown in the open field (September to November), while in northern regions it must be grown in greenhouses.
Celery Seedling-Raising Techniques
1. Temperature-controlled germination
The minimum temperature for celery seeds to germinate is 4°C, and the optimum temperature is 15-20°C. Even at the optimum temperature, it still takes 4-7 days to germinate, and the seedling stage is about 40 days. Before raising seedlings, temperature-controlled germination is needed, with the temperature kept within the optimum range. After about 10 days, they can germinate.
2. Seedbed preparation
For the seedling bed, choose a plot with loose soil, fertility, and rich organic matter content. At the same time, ensure the plot has good water retention, convenient drainage and irrigation, and good ventilation.
3. Sowing and raising seedlings
7-10 days before sowing, 48% butralin emulsifiable concentrate can be used for weed control, spraying evenly at 80-120 grams per mu mixed with 60 kg of water for weed control. Then level the seedling bed and prepare to sow. When about 70% of the seeds have germinated, they can be sown. Be sure to water enough bottom water, then mix the germinated seeds with fine-sieved sandy soil, broadcast by hand, and then evenly sieve and cover with fine sandy soil, with a thickness of 2-3 mm as suitable. 3-5 days after broadcasting, full seedlings can emerge.
4. Seedling-stage management
During seedling raising, keep the seedling bed moist. If the surface becomes dry, a sprayer can be used to spray water to keep the surface moist. In high-temperature weather, choose a shade net with a shading rate of 50% to shade and cool down. In addition, during seedling raising, according to growth, potassium dihydrogen phosphate can be sprayed after 2 leaves and 1 heart, and thinning can be done at the same time. During thinning, also note that a celery plant spacing of about 4 cm is relatively suitable, which can ensure good ventilation and light transmission for celery. When celery grows to a height of 20 cm and five true leaves appear, the subsequent transplanting work can be done.
The above is the full introduction to celery seed selection and seedling raising. In general, although celery's daily management is not too complicated, its seedling-raising work actually involves many small techniques. Once they are not mastered well, it is easy to have a low emergence rate and severe disease, thereby affecting yield. Therefore, the work during seedling raising must be fully implemented.
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