2. Seeding leeks are mostly used for seed sowing methods and sowing in the case of more adequate bottom pods in cultivated pods. If there is not enough squat, watering should be done before sowing. Seed sowing seeds for uniformity, shallow after spreading, repression, so that the soil and seeds close, in order to facilitate the absorption of seeds to ensure emergence. Can also be watered first, soaked after the water soaked, then cover fine soil 1 cm. For spring sowing, 11-15 kg per hectare, 30-37 kg for summer sowing and 15-22.5 kg for autumn sowing.
The leek seed has a dormancy period, and new seeds of the year should not be used because it has not escaped the dormancy period and is not easy to emerge after sowing.
3. Field management In normal climate, spring sowing can be done 5 to 7 days; summer sowing can be 3 days seedlings, watering before the emergence of small water, keep the soil moist, to facilitate the emergence of seedlings. After emergence, pay attention to proper irrigation, keep it moist, do not make drought, and pay attention to drainage and flood prevention during the rainy season. If mud splashes on the leaves or the cabbage during the rainy season, the mud should be washed off in the early morning or early evening so as not to affect the growth of the leek. Autumn sowing leek should be properly controlled before the winter watering, prevent leggy, in order to facilitate safe winter.
Spring and summer cultivation of leeks, due to a short growing period, generally top dressing 2 times. The first time in two true leaves, the second time after 15 to 20 days. Each time a hectare of manure urine 22500 kg, or 150 kg of urea. The picking period of the autumn sowing leek is long, and the fertilizer should be topdressed once per harvest, and it can be top-dressed 4 times.
Leek plants are small and mixed with weeds. For this reason, we should try our best to choose small plots of weed cultivation. In the management, we should always pull and pull the grass, so as to pull out early, pull small, pull out, do not stay in the grass pressure seedlings, or pull grass injury seedlings.
4. Picking spring and summer sowing leek, grow faster, from sowing to harvest days is generally 30 to 50 days, the number of harvested 1 to 2 times. Autumn sowing of leeks, from sowing to harvest for 30 to 35 days, after the successive harvest 4 to 5 times, the Yangtze River Valley can be delayed until late spring.
When harvesting, large plants with 10 to 13 true leaves were selected and rooted. Left middle and small seedlings continue to grow. At the same time pay attention to the first densely planted, and later dilute the place, so that the remaining plants are distributed evenly. Watering in time after picking, in order to facilitate the growth of the remaining strains. It produces 37,500 to 45,000 kilograms per hectare.
Oxygen Cylinder Filling System
With PSA principles, ETR Oxygen Cylinder Filling system can produce 93%±3% purity oxygen gas from compressed air directly. ETR oxygen cylinder filling system is consisted of Atlas screw air compressor, refrigerated air dryer, compressed air filter, air buffer tank, ETR Oxygen Plant, oxygen buffer tank, oxygen booster, cylinder filling station and HMI control cabinet.
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. With an oxygen booster, the oxygen pressure can be to 150bar and fill in cylinders.
Onsite Oxygen Cylinder Filling System
Onsite Oxygen Cylinder Filling System,Oxygen Refilling System ,Oxygen Cylinder Filling,Oxygen Refilling Machine
Hunan Eter Electronic Medical Project Stock Co., Ltd. , https://www.centralgas.be