First, optimize vegetable production conditions:
The pollution-free vegetable production base is the materialization basis for the healthy growth of vegetables. It is necessary to choose a region that is 3,000 meters away from factories, hospitals and other pollution sources, and has no pollution to water, atmosphere and soil. It is more ideal to have mountain and river barriers. The environmental quality of farmland irrigation water, soil, atmosphere, drinking water, and comprehensive management of soil and water conservation shall comply with relevant national standards. The area of ​​the base should be more than 5 hectares. The land is contiguous for rotation and convenient for transportation. After the base is selected, it should also be rationally planned, improve irrigation and drainage facilities, improve the field road network, and fertilize the soil to create a high-quality, high-efficiency, low-cost pollution-free vegetable production ecological environment.
Second, refine vegetable cultivation technology:
The refinement cultivation technique is to implement the "fitness cultivation" of vegetables according to the requirements of the harmless treatment of vegetables and pests. To study the laws of vegetable growth and development, environmental regulation and yield formation, and study the relationship between soilless cultivation, facility cultivation, water-saving irrigation and the application of these technologies and the growth and decline of pests and diseases, we should study the rotation technology and mouthwash arrangement between different vegetables. Technology, clean pastoral technology, introduction of experiments to promote the integration of anti-virus and other varieties of technology, according to local conditions system (design) a set of production technical specifications suitable for different types of vegetable fields and different vegetable varieties for base production and application.
Third, strengthen the application of biological and physical control technology:
With the continuous evolution of pollution-free vegetable production technology, the protection and utilization of natural enemies, Bacillus thuringiensis, Bt and virus compound bio-pesticides, ipibulin, agricultural anti-120, agricultural streptomycin, neomycin, light trapping The use of pests to trap and kill the color of Zhao Zhao and insecticidal lamps, special performance membranes to prevent pests and other biological and physical control technologies have been increasingly valued and have directly replaced the use of chemical pesticides. In the future, we should fully apply existing technological achievements, further develop and promote biological and physical control technologies, and strive to expand the use of chemical pesticides.
Fourth, optimize the chemical control technology of vegetable pests and diseases:
Optimizing the chemical control technology of vegetable pests and diseases can greatly improve the efficacy of pesticides, not only control the pests and diseases, but also prevent the pesticide residues from exceeding the standard residues in vegetable products. It can be started from the following aspects.
1. According to relevant state regulations, it is absolutely forbidden to use highly toxic, highly toxic and highly residual pesticides on vegetables.
2. Strengthen the measurement of pests and diseases, and master the appropriate period of prevention and treatment. There are many kinds of vegetable pests and diseases, which are complicated. It is necessary to grasp the main period of occurrence of major pests and diseases and pests and diseases. The general stage of pests and the early stage of disease are suitable for prevention and treatment.
3, the right medicine. According to the original color map of Chinese vegetable pests and diseases, there are 1133 kinds of vegetable diseases and 334 kinds of vegetable pests in China. However, there are not many types of vegetables and major pests and diseases that are mainly planted in various places. It is necessary to diagnose the symptoms before treatment.
4, pay attention to the application of pesticide technology. In the implementation of chemical control, pesticides must be applied to the target to effectively control the occurrence and development of vegetables and pests, in order to protect the normal growth of vegetables. If the application is “off targetâ€, it will reduce the control effect and cause environmental pollution.
5. Control the concentration, usage, dosage form, number of uses, mode of use and safe interval of pesticides in accordance with the law in strict accordance with relevant regulations.
5. Monitor pesticide residues in vegetable products and prevent excessive residues:
The pesticide residue tester is used to monitor the dynamic monitoring of vegetable products to the whole process of anti-fouling. It must be checked at all levels. Production units and vegetable farmers should not buy prohibited pesticides according to regulations, do not ban pesticides, do not exceed standard drugs, and should be the key to drug use. The anti-pollution dynamic monitoring was carried out in the links, questionable links and the three links before the listing to prevent the production and listing of “poisonous†dishes.
romatographic and use double-antibodyromatographic and use double-antibodysandwich method to detect antigen. Whenthe concentration of antigen in specimen ishigher than the minimum detection limit, theviral antigen will form complexes withlabeled antibodies first. Under chromatogra-phy, the complexes move forward along thenitrocellulose membrane till captured bypre-coated monoclonal antibody ofindetection zone.Through the visible color tointerprete the test results.
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