First, characteristics
The above ground celery is similar to the celery, and the underground fleshy root is yellowish-brown in shape. The bulk of the celery is mainly composed of shortened stems, hypocotyls, and the upper roots of the roots. The inflorescence of R. argentinus is in the form of a para-umbrella. The flowers are small, white and cross-pollinated, but the self-crossing can also be strong. The fruit is a double-suspended fruit with 2 carpels, each containing 1 seed. The seed coat is brown, small in size and scented. The grain weight is about 0.4 grams and the seed life is 3 years.
The cold and moist climatic conditions of the root celery grow rapidly under long-day low-temperature conditions. In the ground temperature 20 °C when the largest amount of growth, not hot and humid weather. Roots are susceptible to browning and decay under high temperature conditions.
Second, cultivation technology
1. The cultivation season can be cultivated in spring and autumn in cool regions in summer. From February to March, the nursery will be planted in shelters and other protected areas, planted in May and harvested in the middle and late August. Or in May, nursery will be planted in mid-July and harvested in October. Or nursery in late June, planted in the greenhouse in early September, harvested in November. Because the root of the meat is suitable for expansion in a cool environment, it is easy to obtain high yields during the growth process from high to low temperatures. In hot summer months, it is only suitable for cultivation in the autumn.
2. Nursery soil method seedlings, plug seedlings can be, I believe that soil seedlings easier access to strong seedlings. As the celery is mostly seeded with double hanging fruit, its peel is thick and firm, with oil glands, it is not easy to absorb water, and germination is slow and not neat. Therefore, germination is of the utmost importance and must be soaked and rubbed when soaked. The soaking temperature is 20°C to 30°C for 8 to 10 hours. Then wash the seeds, drain the water, mix well with the fine dry soil, and spread on the seedbed. Seedbed can be used flat or small sorghum, bed soil should be crushed, flat, full base fertilizer, pouring foot bottom water. Seeds are sparsely sown, which saves the separation of seedlings and reduces damage to the root system. Afterwards, pour small water into the ditch so that the seeds are in full contact with the soil. The optimum temperature for seed germination is 10°C to 25°C. Until the seeds sprout, covered with medicinal soil (the seedling stage is easy to get damping-off disease), the thickness of 0.5 cm, do not water, to prevent soil compaction, the seed by the bottom of the seedbed water development. After the buds are unearthed and then watered, the principle of groundwater irrigation is the principle to keep the soil moist. The seedling age is generally 70 to 90 days. The specific conditions depend on seedlings and seedling growth.
3. Planting Choose a well-drained, well-drained plot, clean the garden before planting, deepen the soil, apply enough base fertilizer, and pour enough water. The planting density of Origanum is generally about 7000 per acre. Since the root of celery root is not easy to recover after injury, planting should be carefully digging seedlings to prevent root injury, and as far as possible with a block of transplants in order to facilitate root recovery and seedling survival.
4. The field management is the same as the general root vegetables. The watering of the seedling stage is based on the principle of “less pouring and pouringâ€. The growth period of the leaves is "very dry without pouring, and the ground is white." During the vigorous growth of fleshy roots, the water supply should be evenly distributed, suitable for phosphorus and potash fertilizers, especially potassium fertilizers, and promote the rapid expansion of fleshy roots. During the late growth stage of fleshy roots, proper watering should still be carried out to prevent hollowing out. During the entire growth period, old leaves and diseased leaves should be removed in time to reduce the spread of diseases and insect pests to facilitate ventilation.
5. Harvesting and storage are generally harvested after the roots of the meat are fully expanded. Premature yield is low, too late to hollow or hollow in storage. Store at 0°C to 5°C for up to 2 months.
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