Vegetable Formula Fertilizer 3

Second, the fertilization of various vegetables

1. Melons: Apply sufficient base fertilizer to ensure that 4000-5000 kg of well-decomposed organic fertilizer is used per mu. Additionally, apply 30-40 kg of diammonium phosphate and 40-60 kg of potassium sulfate per mu, or 100 kg of a three-nutrient compound fertilizer. For top-dressing, you can apply 1000 kg of composted manure or 10 kg of a three-nutrient compound fertilizer (or urea) per acre. To enhance nutrient absorption, foliar sprays with 0.4% urea and 0.3-0.4% phosphoric acid can be applied 2-3 times. In protected areas, COâ‚‚ gas fertilizer can also be used to improve growth. It is important to avoid using harmful municipal waste or sludge as fertilizer. Also, do not use manure as a top-dressing during the harvesting period to prevent contamination and maintain quality.

2. Solanaceous vegetables: Organic fertilizer should be the main source of nutrients. Apply 4000-5000 kg of mature organic fertilizer per mu as a base fertilizer, along with 30-40 kg of diammonium phosphate and 40-60 kg of potassium sulfate per mu, or 100 kg of a three-nutrient compound fertilizer. For top-dressing, you can use 1000 kg of well-decomposed human manure or 10 kg of urea per acre. Avoid using any harmful municipal waste or sludge, and do not apply manure-based fertilizers during the harvesting phase to ensure food safety and quality.

3. Leafy vegetables: Ensure adequate base fertilizer by applying 4000-5000 kg of well-decomposed organic fertilizer per mu, along with 30-40 kg of diammonium phosphate and 30-40 kg of potassium sulfate, or 80 kg of a three-nutrient compound fertilizer. For top-dressing, in the early and middle stages, you can add 1000 kg of decomposed manure and urine, 40-100 kg of plant ash, or 10 kg of a three-nutrient compound fertilizer (or urea) per mu. For quick-acting nutrients, apply 20-30 kg of ammonium bicarbonate or 10 kg of urea per mu. As always, avoid using harmful municipal waste or sludge, and refrain from applying manure-based fertilizers during the final harvesting stage to preserve the quality and safety of the produce.