Since the active ingredients contained in plant-derived pesticides are natural substances, rather than synthetic chemicals, they have a smooth degradation pathway in nature after application, which is less polluting to the environment; and because of the insecticidal components of plant insecticides, The unique method makes pests more resistant to drug resistance; they are generally highly selective, have low toxicity to humans, livestock and natural enemies, and are relatively low in development and use costs.
Of course, botanical pesticides also have some shortcomings. For example, most natural product compounds have complex structures, are difficult to synthesize or are too expensive to synthesize; active ingredients are easily decomposed, the preparation components are complex, and it is difficult to standardize; most botanical pesticides play a slow effect, leading to some farmers. The friend thought that the pesticide used had no effect. There are many spraying times and short residual period, which is not easy for farmers to accept. Because of the regional distribution of plants, there are many limiting factors in the selection of processing plants; the collection of plants is seasonal.
Plant-derived pesticides are generally water-based agents, which are easily decomposed by the action of sunlight or microorganisms. The half-life is short, the residual degradation is fast, and the enrichment mechanism is poor after being fed by animals. Therefore, the large-scale use of plant-derived pesticides generally does not produce phytotoxicity, which will reduce the pollution of pesticides to the environment, and is a truly pollution-free pesticide. At the same time, plant-derived pesticides also have a nutritional effect on crops, which can improve the nutritional value of agricultural products. Therefore, as people's demand for green foods has become stronger, people's understanding of plant-derived pesticides has become more profound.
Jingcheng wireless remote transmission water meter and the AMR (automatic meter reading) system were designed for the Water Supply Department, Which is new accounting management system. The system consists of 4 components: water meter, zone collector, GPRS concentrator and master point (management center). It adopts Zig-Bee with GPRS communication way to achieve a automatic and intelligent charge management.
The new Jingcheng IC/RF card prepaid water supply system is perfectly adapted to the needs of the utility industry in terms of efficient readout processes and highest data quality.
The measuring devices send a data protocol at specified intervals. For data security reasons the data telegrams are AES encrypted according to the up to date technology. The Radio receiver will process the data telegrams to a handheld or tablet PC with the Jingcheng readout software.
The consumption data and additional information relating to the meters are stored on the mobile device. They are transmitted to the PC in the office to use them for billing or energy monitoring purposes.
FEATURES:
1.Combining with meter-reading system to enable the automatic meter reading.
2.Compatible with several third-party software systems
3.Frequency(RF Card): Standard for the country.
4.Power: Battery inside.
5.Low-consumption design. only consume when meter need read.
6.Valve control remote switch.
Wireless Water Meter,Wireless Flow Water Meter,Brass Wet Type Water Meter,Wet Type Vane Wheel Water Meter
Ningbo Jingcheng Technology Co., Ltd. , https://www.jingchengmeter.com