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Beijing Zechuan Technology Co., Ltd
Date: 2023-02-07Read: 0
greenhouse
With the advancement of agricultural technology, vegetable greenhouses, cold chain logistics, and biotechnology continue to improve. It is no longer difficult for northern consumers to enjoy fresh southern fruits and vegetables.
We consumers can enjoy fresh and high-quality fruits and vegetables, and it can be said that greenhouse owners have put a lot of effort into it.
For example, in winter greenhouses, due to their sealing, air ventilation is reduced, and many vegetables are easily exposed to harmful gases in the greenhouse, affecting their sales value. Therefore, greenhouse owners must pay attention to the occurrence and prevention of harmful gases in the greenhouse.
Part 1 Common gases and hazards in vegetable greenhouses
1. Ammonia gas
If untreated organic fertilizer is applied, it is easy to decompose and produce ammonia gas at high temperatures inside the greenhouse, which can harm vegetables. Causing water stained spots on the leaves, and in severe cases, the entire leaf may die.
2. Carbon monoxide and carbon dioxide
There are three types of hazards, one is hidden poisoning, where vegetables themselves do not have obvious visible effectsDamaged by destructionThe condition is only characterized by a decrease in assimilation function and a deterioration in quality; Secondly, chronic poisoning results in brown spots and yellowing on the surface of stomata and their surroundings; The third is acute poisoning, which produces whitening symptoms similar to the hazards of nitrous acid gas.
3. Chlorine gas
The concentration of chlorine gas in the air is above 0.1 milligrams per liter, which destroys chlorophyll in vegetables and causes leaf fading and damage. In severe cases, the entire leaf may bleach, wither, and fall off.
4. Nitrous acid gas
Water soaked spots appear between the edges and veins of the affected leaves, gradually turning into white spots or patches. After two or three days, the leaves dry up.
5. Diisobutyl phthalate
Plastic greenhouse films or other plastic products produced using diisobutyl phthalate as a plasticizer will continuously release diisobutyl phthalate when exposed to high temperatures indoors, which can accumulate to a certain extent and pose a threat to crops.
Part 2: How to choose suitable gas detection equipment
Firstly, considering that greenhouse owners do not observe the condition of fruits and vegetables in the greenhouse every day, it is necessary to have a gas detector that can monitor in real time, give timely alarms, remotely control, and detect a variety of gas types.
In response to the above considerations, Zechuanjun recommends the fixed online gas detector MIC600- it is used for 24-hour continuous online monitoring of gas concentration and temperature and humidity measurement on site, displaying concentration and over limit sound and light alarms on site, and remote data transmission.
Key Features:
The protection level is IP67, which can prevent rain and short-term immersion. It is equipped with replaceable water vapor and dust filters and can be used in high humidity and high dust environments without damaging sensors and instruments.
Built in pump suction measurement, fast response, sampling distance of more than 10 meters.
Humanized design, high-definition 2.5-inch color screen displays real-time information such as concentration, alarm, time, temperature, humidity, storage, communication, printing, battery level, charging status, etc.
● Large capacity data storage function, supporting 100000 pieces of data storage capacity, and larger capacity can be customized.
Multiple alarms: sound and light alarm, vibration alarm, visual alarm, undervoltage alarm, fault alarm, fall alarm (optional).
● It can simultaneously detect 6-8 gases, with freely switchable units available: PPM, mg/m3, Vol%, LEL%, PPHM, ppb, mg/L.
To get more news and popular science in the gas industry, please pay attention to the official account of "Zekutsu Technology". To purchase gas analysis equipment and one-stop gas detection solutions, please consult Zekutsu Technology:
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Official account |Zechuan Technology