2. Cherry Tomatoes. In addition to nitrogen, phosphorus, and potassium, calcium and boron fertilizers are also crucial for optimal growth. For every 1000kg of cherry tomatoes produced, approximately 3.85kg of pure nitrogen, 1.15kg of phosphorus pentoxide, and 4.44kg of potassium oxide are needed. Before planting, 5000kg of organic fertilizer, 200kg of bio-organic compound fertilizer, 50kg of urea, 30–50kg of superphosphate, 40kg of potassium sulfate, 100kg of calcium fertilizer, and 1.5kg of borax should be applied per 667 square meters. The first topdressing is typically done when the first fruit cluster begins to grow, using 5kg of pure nitrogen and 6kg of potassium oxide. The second topdressing is applied when the first fruit cluster is being harvested, with 5kg of nitrogen and 6–7kg of potassium oxide. A third topdressing is done when the third fruit cluster starts to develop, using 4kg of nitrogen and 5–6kg of potassium oxide.

3. Colorful Peppers. Capsicum annuum requires sufficient nutrients throughout its growth cycle. For 1000kg of colorful peppers, about 4.2kg of pure nitrogen, 1.2kg of phosphorus pentoxide, and 6.5kg of potassium oxide are necessary. Calcium fertilizer is also beneficial. Before planting, apply 4500kg of organic fertilizer, 150kg of bio-organic compound fertilizer, 50kg of urea, 25kg of superphosphate, 50kg of potassium sulfate, and 100kg of calcium fertilizer per 667 square meters. When the seedlings are well-established and the first fruit cluster reaches walnut size, apply 5kg of nitrogen and 6kg of potassium oxide. During the peak fruiting stage, when multiple fruit clusters are expanding, apply 6kg of nitrogen and 7–8kg of potassium oxide. A third topdressing is done two weeks later with the same amount, and a fourth topdressing is applied 15–20 days after that, matching the initial application.

4. Thorny Cucumber. This variety benefits from high levels of organic and NPK fertilizers. Adding molybdenum helps increase vitamin content while reducing nitrate and nitrite levels. For 1000kg of thorny cucumber, around 2.6kg of pure nitrogen, 1.4kg of phosphorus pentoxide, and 3.5kg of potassium oxide are required, with over 80% of the total nutrients needed during this phase. Before planting, use 5000kg of organic fertilizer, 250kg of bio-organic compound fertilizer, 60kg of urea, 30–40kg of superphosphate, and 50kg of potassium sulfate per 667 square meters. During the early fruiting stage, apply 1–3kg of nitrogen and 4–6kg of potassium oxide. At the beginning of harvest, apply 3–4kg of nitrogen and 5–6kg of potassium oxide. A third topdressing is done mid-season, using 3–4kg of nitrogen and 5–6kg of potassium oxide. A foliar spray of 0.02% to 0.05% ammonium molybdate is recommended at full fruit stage.

5. Dutch Beans. During the seedling stage, nitrogen is essential, while phosphorus and potassium are added during the growing season. Molybdenum and manganese fertilizers are also beneficial. For 1000kg of Dutch beans, approximately 2.4kg of nitrogen, 0.8kg of phosphorus pentoxide, and 5.7kg of potassium oxide are needed. Before sowing, apply 2500kg of organic fertilizer, 100kg of bio-organic compound fertilizer, 20kg of urea, 25–30kg of superphosphate, 40kg of potassium sulfate, and 0.5–1kg of manganese sulfate per 667 square meters. During the early growth stage, apply 3kg of nitrogen and 4–6kg of potassium oxide. At flowering, a second topdressing is done, using 2–2.5kg of nitrogen and 3.5kg of potassium oxide. A foliar spray of 0.02% to 0.05% ammonium molybdate is also recommended during this period.

6. American Celery. In addition to nitrogen, phosphorus, and potassium, celery has a higher demand for boron. Zinc fertilizer can help reduce nitrate and nitrite levels in fresh vegetables. To produce 1000kg of celery, about 2.0kg of nitrogen, 0.93kg of phosphorus pentoxide, and 3.9kg of potassium oxide are needed. Before planting, apply 4000–5000kg of organic fertilizer, 150kg of bio-organic compound fertilizer, 40kg of urea, 25–35kg of superphosphate, 40kg of potassium sulfate, and 1–1.5kg of zinc sulfate per 667 square meters. During the vigorous growth phase, apply 3kg of nitrogen and 5–6kg of potassium oxide. Two weeks later, apply 2–2.5kg of nitrogen and 4–5kg of potassium oxide. During the strong growth stage, a foliar spray of 0.2% to 0.5% borax can be used to improve nutrient absorption and quality.

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