1) Open cultivation. The leaves are mostly cultivated in open field with mustard greens, and both the north and the south are dominated by autumn sowing, especially the leaf mustard produced as a processing. Because the heat tolerance and cold-resistance of leaf mustard are not as good as Chinese cabbage, the sowing time for leaf mustard in autumn is later than that of Chinese cabbage. The early sowing of the Yangtze River valley can be in early September, late sowing can be in late September, the harvest period in December of that year, can be extended to October sowing, generally harvested from January to April of the following year. Leaf mustard harvested by seedlings can be planted in warm regions such as Guangdong for an annual anniversary. Autumn sowing in the northern regions is generally planted in early August and harvested in October.
2) Protected cultivation. Southern protected areas are generally simple protection facilities, such as sheds, sheds, etc. The northern winter can only be grown in greenhouses. At present, the main planting bulbs must be planted, usually from September to November, and harvested from November to February. If you are preparing to harvest before the Spring Festival in early February, plant your seeds from October to early November.
Cultivation Techniques
1) sowing and nursery. The leaves were planted with multiple rows of mustard, especially longer-growing vegetables used for pickling. However, species harvested by seedling feeding in small plants are often broadcast live. Seedlings can be used seedling nursery, but also 128 hole plug seedlings. Fine sowing, 20 to 30 grams of seed per 667 square meters, seedlings per square meter sowing volume of about 0.5 grams. Seedling age 20 to 30 grams, seedlings per square meter sowing volume of about 0.5 grams. The seedling age is 20-30 days. Seedlings used for direct seeding are about 500 grams per 667 square meters.
2) Soil preparation, fertilization, and hoeing. Compared with large crops such as cucumbers and tomatoes, leaf mustard needs much less fertilizer, and has stronger fertility and salt tolerance. Large crops can be planted afterwards, with less fertilization, and can eliminate soil from protected areas. Some salt. According to soil conditions, about 3,000 kg of compost organic fertilizer and 50 kg of compound fertilizer are applied per 667 m2 of land and fully mixed with the soil to make a 1.3 m wide sorghum or flat rake to be sown or planted.
3) Colonization. Variety, planting season, planting methods, etc., different planting densities should be different, the general early maturing species, the smaller the degree of plant development are spaced 33 to 40 cm, spacing 25 to 33 cm. The medium- and late-maturing crops were developed at intervals of 40 to 46 cm and the spacing of plants was 25 to 33 cm. Northern knotweed cultivation greenhouse large leaf harvesting plant spacing 25 ~ 33 cm.
4) Field management. Small plants are harvested live, the growth period of 30 to 40 days, after emergence and time seedlings, weeding. During the growth period, it can be topdressed 1 or 2 times. Transplanting seedlings should be ploughed and weeded immediately after planting. To keep the soil moist, during the growth period can be top dressing 3 to 4 times, each applying 10 to 15 kg of urea. For leaf mustard used for processing, field management should be strengthened and watering should be stopped 15 days before harvest.
Containerized Oxygen Generator
ETR can combine all parts of the oxygen generation system into a customized container, including air compressor, refrigerate air dryer, filters, buffer tanks and Oxygen Generator. Even the optional oxygen booster and cylinder filling station.
Compressed air is purified through the air dryer and filters to a certain level for main plant to work with. Air buffer is incorporated for smooth supply of compressed air thus to reduce fluctuation of compressed air source. The plant produces oxygen with PSA (pressure swing adsorption) technology, which is a time proven oxygen generation method. Oxygen of desired purity at 93%±3% is delivered to oxygen buffer tank for smooth supply of product gas. Oxygen in buffer tank is maintained at 4bar pressure.
Containerized Oxygen Generator
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Hunan Eter Electronic Medical Project Stock Co., Ltd. , https://www.centralgas.be