1, urea foot soluble fertilizer, mobility, can easily lead to loss. After spraying urea on dry land, avoid watering immediately.
2, ammonium bicarbonate should not be applied to the surface of the soil. Ammonium bicarbonate has a high volatility and can easily cause burning of seedlings. It is best to open a deep hole.
3, ammonium bicarbonate should not be applied in greenhouses and greenhouses. Ammonium carbonate is known as “gas fertilizerâ€. It can be quickly dissolved into ammonia gas and volatilized in greenhouses and greenhouses.
4. Carbon nitrogen fertilizer should not be mixed with alkaline fertilizer. Ammonium carbonate, ammonium sulfate, ammonium nitrate, ammonium phosphate and other carbon nitrogen fertilizers encounter alkaline substances and cause nitrogen loss. Do not mix with alkaline fertilizers such as grass ash, kiln ash potash, and lime nitrogen.
5. Nitrate nitrate fertilizer should not be applied in aquatic flowers. Nitrate ions such as ammonium nitrate dissociated from nitrate nitrification fertilizer are easily lost to the deep layer of soil and produce denitrification in water, resulting in loss of nitrogen.
6, ammonium sulfate should not be long-term application. Ammonium sulphate is a physiological fertilizer. Applying it on a piece of land alone will increase the acidity of the dwelling and destroy the physical structure of the soil.
7, phosphate fertilizer should not be dispersed application. Phosphorus has small mobility and is easily absorbed and fixed by the soil. It is best to use furrows or holes to concentrate the near roots of crops.
8, potassium fertilizer should not be applied in the late crop. Potassium has the characteristics of being able to transfer from the lower part of the crop stems and leaves to the young part of the top and reusing it, so the symptoms of potassium deficiency are later than those of nitrogen and phosphorus. Therefore, potash should be applied before the crop is grown, or it can be used as a base fertilizer once.
9, containing chlorinated fertilizer avoid long-term use alone, and avoid the use of chlorine crops. The long-term application of potassium chloride alone will increase the accumulation of chloride ions in the soil, resulting in nutrients in the upper soil.
Destruction and soil acidification.
10, nitrogen compound fertilizer should not be used in large quantities for legumes. Soybeans, peanuts, mung beans, broad beans, peas, pods.
The medical Psa Oxygen Generator system consists of the air compressor, air-water separation device, dryer, air dew point monitoring device, multi-stage filter, air buffer tank, air moisture monitoring device, oxygen generator, oxygen buffer tank, flow meter, online oxygen monitoring device, cylinder manifold system, smart electric control cabinet, computer monitoring system, remote network monitoring system and optional oxygen booster system.
ETR oxygen generator can produce medical level oxygen with 93%±3% purity and 4bar pressure. The oxygen production capacity for single oxygen generator is 3-100Nm3/h.
Onsite Oxygen Generator,Portable Oxygen Machine,Medical Oxygen Machine ,Hospital Oxygen Machine
Hunan Eter Electronic Medical Project Stock Co., Ltd. , https://www.centralgas.be