Stepper Motor Peristaltic Pump
The stepper motor Peristaltic Pump can be used alone with the control program developed by our company, or it can be used with the customer's own PLC control program.
The integrated circuit board specially designed by our electronic engineers can be used with NEMA23 stepper motors, and try a variety of pump head pump tubes at the same time. Support the function customization of Modbus protocol and analog control. The size of the circuit board is as large as the palm of the hand, but its functions are comparable to the digital peristaltic pumps on the market. UCP series peristaltic pumps have compact structure, small volume, powerful functions and high precision. It is suitable for various medical equipment, analytical instruments, packaging machinery, etc.
Stepper Motor Peristaltic Pump,Low Pulse Peristaltic Pump,Intelligent Peristaltic Pump,Timer Transfer Pump Baoding Chuangrui Precision Pump Co., Ltd. , https://www.crprecisionpumps.com
According to the source of the drug, the biological pesticide can be classified into a microbial biopesticide, a plant biopesticide, and an animal biopesticide.
Microbial pesticides include fungi, bacteria, actinomycetes, yeasts, and viruses.
Plant bio-pesticide refers to the extraction of components with antibacterial, anti-viral or insecticidal effects from plants; or the separation and purification of new substances with pesticide activity from plant bodies as structural templates for multi-stage optimization of structures to produce low toxicity and high efficiency. New pesticides, called pesticides, are plant-derived pesticides.
Animal biopesticide refers to toxins or hormones (such as brain hormones and sex pheromones) produced by animals. They have a toxic effect on pests, or inhibit the growth and development of insects and interfere with metabolism, thereby controlling the damage of pests to crops, forests and fruit trees.
2. Application of biological pesticides The most widely used microbial biopesticide is Bacillus thuringiensis. Since the discovery of Bacillus thuringiensis (Bt) by Japanese scientists in 1901, scientists at home and abroad have conducted extensive research and accumulated a large amount of research data. And achieved important results. According to reports, it has been found that more than 60,000 strains of Bacillus thuringiensis are preserved, and more than 100 kinds of products of Bacillus thuringiensis are produced, which are used for controlling microbes and pesticides in agriculture and forestry pests and diseases worldwide, of which 90% are Bacillus thuringiensis products. It is widely used to control a variety of pests such as rice borers, rice leaf roller and armyworm, pine caterpillars, tea caterpillars and corn borer.
The microbial pesticide baculovirus is used as a biological control agent and an insecticidal synergist, and is also effective for controlling crops and forest pests.
Plant biological pesticides: It is reported that there are more than 2,400 insecticidal plants, more than 2,000 bactericidal plants and more than 1,000 herbicidal plants. As early as in the 1930s, China began research on plant-derived bio-pesticides. In recent years, its research has been more systematic and deep. Up to now, there are more than 40 kinds of plant-derived bio-pesticide registered. The main insecticidal (bacteria) plants have pyrethrums of the compositae, which are toxic to various insects such as cabbage caterpillars, aphids, mosquitoes, and the like; the marigold extract has a poisoning or repellent effect on soybean meal and cabbage caterpillar. Neem, Bitter and Chuanxiong in the family, such as the azadirachtin extract, has a repellent and antifeedant effect on fruit tree pests and vegetable pests, and is harmless to humans and animals. The extract of celangus in the genus Euonymus has good control effect on rice, corn and vegetable pests. There are also a variety of plants such as Sabina in the cypress plant and Stellera chamaejasme in the genus Rutaceae, which are also rare resources for plant pesticides.
According to reports, according to the international classification standards for biological pesticides, the proportion of biological pesticides in total pesticides is about 2%. The situation in China is also so large, and the proportion of agricultural antibiotics is no more than 11%. Therefore, it is far from Meet the needs of the market. The main body of the pesticide market is chemical pesticides. Therefore, in order to develop ecological agriculture, ensure the safety of agricultural and livestock products, respond to the challenges of the “green box policy†of international trade, and improve the competitiveness of China’s agricultural products in the international market, we must increase efforts to develop and produce more. Many biological pesticides; developing high-efficiency and low-toxic chemical pesticides to meet the needs of the pesticide market is a long-term and arduous task for pesticide researchers and production enterprises.
1. Concepts and types of biological pesticides Biological pesticides are substances with pesticide effects extracted from microorganisms, plants and animals. Such substances are safe for humans, livestock, and crops, and generally do not generally cause pollution to crops and the environment.
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