Some diseases that occur in vegetable production can be promptly administered if symptoms are discovered in time. However, when the soil becomes sick, it is dangerous, because some diseases in the soil are often hidden and difficult to find, and once they become ill , you can easily take the "life" of vegetables.
What is soil sickness? Soil disease does not represent a certain type of physiological or non-physiological disease, but it is a collective term for unpleasant soils or worsening symptoms of deteriorating soils.
Easy to find soil lesions: soil salinization, etc.
When the diseased soil is salinized, the free ions present in the soil cannot be absorbed or fixed and can easily be carried to the surface as the soil moisture evaporates. Therefore, the surface of the soil in the greenhouse shows red and white. Green and other different colors. And often, the cultivation measures such as mulch film cover the performance of this soil lesion, making it difficult to find the situation, and when the plastic film is peeled off for a period of time, the lesion will show its best.
Soil lesions that are easier to find: nutrient imbalance, reduced buffering capacity, soil compaction, etc.
There are two kinds of imbalances in soil nutrients: one is that some nutrients are too abundant; the other is the lack of certain nutrients or bedding. When the nutrients in the soil are too rich or even excessive, the plants tend to show excessive growth or damage to the root system. When soil nutrients are lacking, the plants exhibit various types of nutrient deficiency symptoms such as umbilical rot, dead yellow leaves and dead leaves. When the buffering capacity of the soil is reduced, the nutrients applied to the soil cannot be decomposed and transformed in a timely manner, and the root system is easily affected during the growth process, such as burning roots. When the air permeability of the soil is reduced, roots are affected due to the influence of the root system, and thus the aboveground parts show wilting or yellowing.
Soil lesions that are not easy to find: reduced soil organic matter, unbalanced pH, shallow cropping layers, etc.
The performance of soil lesions such as reduced soil organic matter and unbalanced pH may not always be expressed on plants or on the surface. The process of their occurrence is relatively slow. It is also difficult to rectify the problem in the short term. Only through careful and detailed soil testing can we find changes in soil organic matter and pH. Therefore, soil testing can be used every year to find out the trend of soil organic matter reduction and pH imbalance. The shallowing of the tillage layer is related to poor farming habits. Under the condition of maintaining good soil conditions, changing poor farming habits can prevent the occurrence of shallow cropping conditions.
Oxygen Cylinder Filling System
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,Homefill Oxygen System,Oxygen Refilling Plant,Oxygen Refilling Station
Hunan Eter Medical Co., Ltd. , https://www.eter-tech.com