Non-polluted vegetables are produced using a set of technical measures aimed at preventing contamination under controlled environmental conditions. These vegetables are not only safe but also high-quality and free from harmful substances. 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, with a strong emphasis on biological control methods. In addition, physical control technologies should be used in coordination, and high-efficiency, low-toxicity, and low-residue pesticides should be applied scientifically. The use of highly toxic and residue-heavy pesticides is strictly prohibited.
Second, the selection of the growing area is crucial. The site should have a clean ecological environment, avoiding areas affected by industrial "three wastes" (waste gas, waste water, and solid waste). It should also stay away from major traffic routes and meet specific environmental quality standards for both water and soil conditions.
Third, it is essential to use disease-resistant vegetable varieties. This helps reduce the need for chemical interventions and ensures healthier crops from the start.
Fourth, crop rotation is a vital practice. Continuous cropping can lead to imbalances in soil nutrients and increase the risk of pests and diseases. Implementing a proper rotation system helps prevent these issues and maintains long-term soil health.
Fifth, organic fertilizers should be used as the main base fertilizer. Not only do they improve soil structure and fertility, but they also enhance the plants' resistance to diseases and improve the overall quality of the vegetables.
Sixth, the principle of prevention should guide all practices in producing pollution-free vegetables. Methods such as yellow sticky traps, insect nets, light trapping, and manual pest removal should be prioritized. Biological control methods are preferred to minimize pesticide use. If pesticides are necessary, only high-efficiency, low-toxicity, and low-residue options should be used, such as methyl thiophanate, carbendazim, chlorothalonil, and streptomycin sulfate.
(Source: Hubei Agricultural Information Network)
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