Apple trees need anti-sunburn during the rainy season

Sunburn disease is also called sunburn disease. The victim's apple is characterized by dehydration and scorch on the surface of the sun, resulting in reddish-brown and near-circular spots. The spots gradually expand. Finally, dark brown spots are formed and there are yellowish halos around, seriously affecting the value of Apple products. . July-August is a critical period for the prevention of sunburn, and effective measures should be taken to reduce the incidence of the disease.

1. Timely irrigation. In the absence of drought, irrigation conditions should be immediately filled with water to reduce the incidence of sunburn.

2. Tree tray cover. Before the advent of high temperature and drought, a layer of 20 cm thick straw, grass or wheat bran etc. is covered on the tree tray, which can not only protect the earthworms but also reduce the temperature of the soil, which can prevent sunburn.

3. Cover the fruit surface. In the sun-facing surface of fruits that are prone to sunburn, the tung leaves, ramie leaves, or broadleaf grasses with large leaf areas can be used to reduce direct sunlight and reduce sunburn.

4. Paste the white paper. Apply a white paper on the positive side of sunburn-prone fruit to reflect sunlight and prevent sunburn.

5. Spray lime milk. A layer of lime milk is applied on the apple's positive surface, which can reflect light, prevent sunburn, and sterilize.

From the beginning of 6.7 months to the end of August, spraying Meifeng or Qirui amino acid fertilizer 400 times for 2 or 3 times, each time for 15 days, it can not only increase drought resistance, reduce sunburn, but also promote fruit development and improve fruit quality. Make the flower buds full the following year.

7. Spray water in combination with spraying the evening. When the sun goes down or obliquely, the canopy can be sprayed with clear water to reduce sunburn.

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. 

Eter Oxygen Cylinder Filling Plant

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.eter-tech.com

Posted on