If you want to grow pollution-free vegetables in your shed, it's essential to pay close attention to how and when you apply fertilizers. Here are some important tips to follow:
1. **Avoid using nitrate-based nitrogen fertilizers**. Fertilizers like ammonium nitrate, ammonium sulfate, potassium nitrate, and compound fertilizers containing nitrates can lead to the accumulation of nitrates in vegetables, which is harmful to human health. Additionally, chlorinated fertilizers such as potassium chloride or ammonium chloride should be avoided, as they can negatively affect vegetable quality, reduce yield, and cause undesirable growth issues.
2. **Control the amount of nitrogen fertilizer used**. To meet national and international standards for pollution-free vegetables, it's recommended to apply 10–12 kg of pure nitrogen per mu (approximately 667 square meters). Nitrogen should be applied deeply into the soil and preferably combined with phosphorus and potassium fertilizers or ternary compound fertilizers. It’s best to use methods like fertilizer injection or drip irrigation under a plastic film to minimize root loss, improve nutrient absorption, and stop applying fertilizers at least 20 days before harvest.
3. **Use ecological organic fertilizers**. These are made from fermented livestock manure and are a safe, natural alternative to chemical fertilizers. They help improve soil structure, enhance microbial activity, and provide slow-release nutrients that support long-term plant health without harmful residues.
4. **Limit the use of plant hormones**. Some farmers use substances like gibberellin (920), ethephon, and paclobutrazol to accelerate growth, increase yield, or promote early market readiness. However, excessive use of these chemicals can severely lower vegetable quality and pose serious health risks if consumed over time. It’s better to rely on natural growing methods instead.
By following these guidelines, you can ensure your vegetables are not only healthy but also environmentally friendly and safe for consumption. Always prioritize sustainable farming practices to protect both your crops and your customers' well-being.
Universal Adjustment Foot
Universal Adjustment Foot
Ningbo Mywin Caster Co., Ltd. , https://www.mywin-caster.com