Non-polluted vegetables, also known as pollution-free vegetables, are produced using a set of technical measures designed to prevent contamination under specific environmental conditions. These vegetables are safe, non-toxic, and of high quality. To ensure this, six key aspects should be carefully considered during the production process:
First, the cultivation of pollution-free vegetables must rely on high-yield and stable agricultural techniques. It is essential to prioritize biological control methods, while also integrating physical control technologies. When necessary, only high-efficiency, low-toxicity, and low-residue pesticides should be used, and the use of highly toxic or residue-heavy pesticides must be strictly prohibited.
Second, the selection of the growing area is crucial. The vegetable field should be located in an environment with minimal pollution. This means avoiding areas affected by industrial waste, staying away from major roads, and ensuring that both water and soil meet certain environmental quality standards.
Third, it is important to choose disease-resistant vegetable varieties. These varieties are more likely to thrive without the need for excessive chemical interventions, making them ideal for producing safe and healthy crops.
Fourth, crop rotation plays a vital role in maintaining soil health. Continuous planting of the same crop can lead to nutrient imbalances and increase the risk of pests and diseases. By implementing a proper crop rotation system, farmers can reduce these risks and promote sustainable farming practices.
Fifth, organic fertilizers should be used as the base fertilizer. They not only help improve soil structure and fertility but also enhance the plants' resistance to diseases and improve the overall quality of the vegetables.
Sixth, the principle of prevention should guide all production activities. Techniques such as yellow sticky traps, insect nets, light trapping, and manual pest removal should be prioritized. If pesticide use is unavoidable, only those that are high-efficiency, low-toxicity, and low-residue should be applied. Examples include methyl thiophanate, carbendazim, chlorothalonil, and agricultural streptomycin sulfate.
(Source: Hubei Agricultural Information Network)
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