What type of fertilizer is better for leafy vegetables
The editor will explain the tips about fertilizing leafy vegetables and the method of fertilizing peppers, keep reading!
Vegetables come in many different varieties, so the required fertilizers are also different. For instance, leafy vegetables mainly require nitrogen fertilizers. Due to the dense planting of these vegetables and their shallow root systems, they are urgent and sensitive to soil nutrients. Once the nutrients are insufficient, the leaves will grow slowly and turn yellow. Therefore, the fertilization method focuses on top-dressing.
Fertilization for Leafy Vegetables
Fertilization should prioritize organic fertilizers, focusing on base fertilization, reasonable top-dressing, and moderate use of nitrogen fertilizers. It advocates the use of special-purpose fertilizers and biological fertilizers, prohibits the use of nitrate fertilizers, measures soil formulas, and maintains soil fertility balance.
1. Fertilization According to Vegetable Types
Different varieties of vegetables absorb nitrate to different extents. Leafy vegetables accumulate nitrates lightly, and the application of nitrate fertilizers should cease 20 to 30 days before harvest. Vegetables like cabbage and curly lettuce accumulate less nitrates and can be fertilized lightly. However, vegetables like Chinese cabbage, amaranth, and spinach easily accumulate nitrates, and the use of nitrate fertilizers is strictly prohibited.
2. Less Nitrogen for Spring and Winter Vegetables
In spring and winter, vegetables receive weaker sunlight and tend to accumulate nitrates easily. Nitrogen fertilizers should not be applied or should be applied sparingly. High-fertility fields should avoid using nitrogen fertilizers, while in low-fertility fields, where vegetables accumulate nitrates lightly, nitrogen fertilizers and organic fertilizers can be used to improve soil fertility. For soils rich in humus, where vegetables have high nitrate content, nitrogen fertilizers should not be used.
3. No Nitrate Fertilizers
Ammonium nitrate, potassium nitrate, calcium nitrate, and compound fertilizers containing nitrate nitrogen can easily cause vegetables to accumulate nitrates and are generally not suitable for use in vegetable fields. Urea,碳酸氢铵 (calcium hydrogen ammonium), sulfuric ammonium, and酰胺态氮 (amide nitrogen) should be used in moderation, and when used, they must be deeply applied and covered with soil.
4. Deep Application and Covering Soil
When fertilizing, the fertilizer should be deeply applied to the soil at about 15 to 18 centimeters. This slows down nitrification, improves fertilizer utilization, and can reduce the accumulation of nitrates in vegetables.
Pepper Fertilization Method
Top-dressing for leafy vegetables is mainly based on nitrogen fertilizers, but during the peak growth period, phosphorus and potassium fertilizers should also be added. For example, when cultivating Chinese cabbages, the two applications of fertilizer at the beginning of the rosette stage and before heading are crucial for high yields. Although nitrogen fertilizers can make leafy vegetables grow better and increase yields, the method of applying nitrogen fertilizers must be carefully considered.
Are you clear about the pepper fertilization method and the detailed introduction of fertilizing leafy vegetables provided above?