Amaranth is also called Yangcao, which is very delicious and has a unique aroma. The unique scent of leeks is formed by the sulphide contained in them. These sulphides have a certain bactericidal and anti-inflammatory effect, which helps the body to improve its own immunity. Let's learn the cultivation techniques of leeks together!
Site preparation
The nursery should be easy to drain and irrigate. In the past 1-2 years, the sandy loam or clay soil of the onion and garlic vegetables has not been planted. Before the winter, the ploughing is carried out, and the frozen water is poured. Mu-casting farmyard manure 4-5 cubic meters. For the purpose of preventing phlegm, 5% phoxim granules can be used for 2kg per acre, dry fine soil 10-15kg, evenly applied, fine hoeing after fine ploughing, leveling for hoeing, 畦 width 1.2-1.5m, length 7-10m Easy to manage.
Proper nursery
Amaranth seedlings grow slowly, and should be planted early in the appropriate period. It is advisable to sow them from late March to late April. After soaking and germination, the wet sowing method was used to spread the seedlings in the nursery. The soil was covered twice, and the first layer was covered with thin soil. After the damp, the soil was covered for the second time. The total thickness of the soil was 2 cm. The amount of seed used per acre is 6-8kg. After covering the soil, cover the mulch film to increase the temperature and protect the mites, and remove the mulch after emergence. Generally, 1 mu of seedlings can be planted with 7-9 mu of vegetable fields.
Putian management
The seedling height is lightly poured about 5cm, and the soil is loosened in time; after 10cm, it can be combined with watering to apply the decomposed manure or topdressing urea 2-3 times, and apply the crystal trichlorfon 0.5-1kg per mu with water to kill Kill pests such as cockroaches. After the seedling height is 15 cm, the irrigation is controlled to prevent the child from falling. Weeds should be removed in time. When the height of seedlings is about 12cm, the mu is treated with 0.5-0.75kg of 25% herbicide; or before the sowing, the surface is treated with 0.15kg of 33% weeding emulsifiable spray.
Rational colonization
Choose the convenient soil for fertile irrigation and drainage, and apply 4-5 cubic meters of farmyard manure to the farmland.畦 2-3m wide, every 3 畦 group, set a 1m wide cold zone on the north side. Transplanted from late June to early July. Before the planting, the roots of the roots should be cut off and the bulbs should be cut into small pieces. Pingyu cave planting, line spacing 13-20cm, hole distance 10-15cm, 6-8 strains per hole is appropriate. When planting, it is better to not bury the leaf sheath, and after planting, it should be practical and watered in time.
Field management
When the new leaves of the leek are sent out, the seedling water should be poured, and the soil should be ploughed to keep the soil dry and wet. After the fall, it is the most prosperous period of the growth of leeks, and it is necessary to fully supply the fertilizer. After that, the temperature gradually decreases, and the plant grows slowly, keeping the surface dry. After the frost, it will be transferred to the management stage of the arch shed.
Arch shed cultivation
Before the freezing in late October, set up the scaffolding, and cut a knife before the frost. First loose the noodles, dry for 3-4 days, and apply the fermented round fertilizer, ditch urea and phosphorus and potassium fertilizer. In combination with watering, the roots are treated with phoxim or trichlorfon, and the soil is slightly dry and the membrane is buckled. The corn stalks were planted on the cold-proof belt to keep out the wind and cold, and the cold-proof ditch was dug around the shed. The cold-proof ditch was 10 cm from the shed, 50 cm deep and 50 cm wide. The ditch is filled with crushed corn stover or wheat straw. The wheat bran is used as a heat insulation layer, which is covered with soil and compacted. In order to facilitate the arch shed insulation. After mulching, simmer once in the sunny day to increase the ground temperature. During the growth period, the shed temperature is maintained at 15-20 ° C during the day and 5-7 ° C during the night. Cover the stagnation film during the severe cold period and seal the irrigation port. Harvesting can be started 50-60 days after the shed, and the first leeks are generally harvested on New Year's Day or mid-January, and harvested every 30 days thereafter. After harvesting three knives, the shed will be withdrawn and transferred to open field cultivation.
Harvest
The number of times amaranth is harvested each year depends on the growth of the leek, fertilization and market conditions. In the winter and spring, the shed can be harvested 3 times. Although the quality of autumn is good, in order to cultivate roots, lay a material foundation for the growth of the arch shed, and it is better to harvest l-2茬. Amaranth uses 7 leaves and 1 heart as the standard for cutting. Harvesting is best in the morning. It is advisable to cut the 3-4 cm yellow leaf sheath on the bulb. In the future, each knife should be slightly higher than the previous one to ensure normal growth. The yield is lower in the first 1-2 years after planting, and the growth period is 3-6 years. The yield is the highest. After 10 years, it enters the senescence stage, and should be transplanted in time.
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