First, nursery: greenhouse celery cultivation in spring, according to the proposed transplanting time appropriate nursery. The nursery period is generally about 7 days. Seedlings generally do not water, do not need to topdressing, only when it is found that the drought really can be used to water some watering pots, as far as possible to allow seedlings to grow slowly, to avoid leggy. Second, planting: First, site preparation for basal fertilization, leveling the ground, made 1 meter wide rake, evenly spread a layer of farmyard fertilizer on the rake surface, 10 kilograms per square meter, re-turn over again, æ‚ ç•¦ 畦 畦 准备 准备 准备 准备 准备 准备 preparation . Followed by planting seedlings, each planting 6 to 7 rows, hole spacing 8 to 10 cm, planted irrigation. Third, management: Generally do not have to slow water, the heart began to give birth when the leaves loose soil. The daytime temperature is maintained at 15~20°C, and around 10°C at night. When the plants have 5~6 pieces of large leaves, 20~30 grams of urea is chased every square meter, and the water is chased along the edge. After dressing, we must keep the surface moist, and the temperature can be increased to about 20~25°C during this period. After several consecutive continuous pouring of water, the celery petiole can be quickly harvested and then harvested.
ETR Oxygen Cylinder Filling System
By PSA principles, ETR PSA oxygen generators generate 93%±2% purity oxygen gas directly from compressed air. ETR oxygen cylinder
filling plant is consisted of Atlas Copco air compressor, Parker dryer and
filters, air buffer tank, ETR Psa Oxygen Generator, oxygen buffer tank,
oxygen receiver tank, diaphragm oxygen booster, filling station and control
cabinet.
Compressed air is purified through the air dryer and
filters to a certain level for main generator to work with. Air buffer is
incorporated for smooth supply of compressed air thus to reduce fluctuation of
compressed air source. The generator produces oxygen with PSA (pressure swing
adsorption) technology, which is a time proven oxygen generation method. Oxygen
of desired purity at 93%±2% is delivered to oxygen buffer tank for smooth supply
of product gas. Oxygen in buffer tank is maintained at 4bar pressure, then
reach to 150bar to filling cylinders with an oxygen booster.
Oxygen Cylinder Filling System
Oxygen Cylinder Filling System,Homefill Oxygen System,Oxygen Refilling Plant,Oxygen Refilling Station
Hunan Eter Electronic Medical Project Stock Co., Ltd. , http://www.centralgas.be
