1. Cauliflower: In fertilizer nutrients, nitrogen and phosphorus are most needed in the whole growth period, especially in the bulbous expansion stage, and potassium fertilizer is required after flower bud differentiation. Among the trace elements, boron and molybdenum are most needed. The production of 1000kg of green cauliflower requires 2.5kg of pure nitrogen, 1.2kg of phosphorus pentoxide and 2.9kg of potassium oxide. Before planting, 2500kg organic fertilizer, 100kg bio-organic compound fertilizer, 50kg urea, 20-25kg superphosphate, 30kg potassium sulfate per 667m2 (1 mu). In the rosette period, the first topdressing was performed, applying 4 kg of pure nitrogen per 667 square meters, and 6 kg of potassium oxide. The second time the rosette was top dressing, 2.5 kg of pure nitrogen was applied per 667 square meters, and 4 kg of potassium oxide. In the initial stage of bulb formation, 0.2% to 0.5% borax can be sprayed from the roots.
2, cherry tomatoes: In addition to nitrogen, phosphorus, potassium, pay attention to increase calcium, boron fertilizer. The production of 1000kg cherry tomatoes requires 3.85kg of pure nitrogen, 1.15kg of phosphorus pentoxide and 4.44kg of potassium oxide. Before planting, apply 5,000 kg of organic fertilizer per 667 square meters, 200 kg of bio-organic compound fertilizer, 50 kg of urea, 30-50 kg of superphosphate, 40 kg of potassium sulfate, 100 kg of calcium fertilizer, and 1.5 kg of borax. Generally when the first fruit begins to enlarge, it can be topdressed for the first time, applying 5 kg of pure nitrogen per 667 square meters, and 6 kg of potassium oxide. The second time dressing is the first time the fruit is about to be harvested. When the second fruit is enlarged, 5kg of pure nitrogen is applied per 667 square meters, and 6-7kg of potassium oxide. The third time the topdressing is about to be harvested in the second ear, when the third ear is enlarged, 4kg of pure nitrogen is applied per 667 square meters and potassium oxide is 5-6kg.
3, colorful pepper: growth of colorful pepper requires adequate nutritional conditions, production of 1000kg pepper requires pure nitrogen 4.2kg, phosphorus pentoxide 1.1kg, potassium oxide 6.5kg, but also the amount of calcium fertilizer. Before planting, apply organic fertilizer 4500kg per 667 square meters, bio-organic compound fertilizer 150kg, urea 50kg, superphosphate 25kg, potassium sulfate 50kg, calcium fertilizer 100kg. When the seedlings are over and the first ear grows to the size of the walnuts, the top dressing is performed for 5 kg of pure nitrogen per 667 square meters and 6 kg of potassium oxide. When the first ear fruit (Jian pepper) is about to be harvested, the second layer fruit (for peppers) and the third layer fruit (four mothers bucket) continue to inflate, and the third layer fruit is falling and setting fruit, it is the period of peak fertilizer requirement. The 2nd topdressing should be reused, applying 6kg of pure nitrogen per 667 square meters, and 7-8kg of potassium oxide. The third topdressing was performed about two weeks later and the amount of fertilizer was the same as the second. After 15 to 20 days, the fourth topdressing was performed with the same amount of fertilizer applied for the first time.
4, no thorn cucumber: no thorn cucumber good fertilizer, apply enough organic fertilizer, with the application of nitrogen, phosphorus and potassium fertilizer. Increasing molybdenum fertilizer can increase vitamin content in fruits and reduce nitrate and nitrite content. The production of 1000kg barbed cucumber requires 2.6kg of pure nitrogen, 1.4kg of phosphorus pentoxide, and 3.5kg of potassium oxide, of which the required amount of fertilizer accounts for more than 80% of the total fertilizer requirement. Before the planting, 5000 kg of organic fertilizer was applied per 667 square meters, 250 kg of biological organic compound fertilizer, 60 kg of urea, 30-40 kg of superphosphate, and 50 kg of potassium sulfate. In the early stage of fruiting, the topdressing fertilizer was applied for 1 to 3 kg per 667 square meters of pure nitrogen and 4 to 6 kg of potassium oxide. In the early stage of the harvest, the first time, the topdressing fertilizer was applied to 3 to 4 kg of pure nitrogen per 667 square meters and 5 to 6 kg of potassium oxide. In the middle of the melon period, the 3rd top-dressing fertilizer was applied, and 3 to 4 kg of nitrogen was applied per 667 square meters, and potassium oxide was 5 to 6 kg. Spray 0.02% to 0.05% ammonium molybdate at full fruit stage.
5, the Netherlands Beans: nitrogen fertilizer application at seedling stage, the growth of phosphorus and potassium fertilizer supplement, pay attention to increase molybdenum and manganese fertilizer. The production of 1,000 kg of Dutch beans requires 2.4 kg of pure nitrogen, 0.8 kg of phosphorus pentoxide and 5.7 kg of potassium oxide. Before sowing, apply organic fertilizer 2500kg per 667 square meters, bio-organic compound fertilizer 100kg, urea 20kg, superphosphate 25 ~ 30kg, potassium sulfate 40kg, manganese sulfate 0.5 ~ 1kg. Into the extension of the cranberry period, the first topdressing, application of pure nitrogen 3kg per 667 square meters, potassium oxide 4 ~ 6kg. During the flowering and podling stage, the second fertilizer is applied. Pure nitrogen is applied to 2 to 2.5 kg per 667 square meters, and potassium oxide is 3 to 5 kg. Spraying 0.02% to 0.05% ammonium molybdate during flowering.
6, the United States celery: In addition to nitrogen, phosphorus and potassium, celery, the greater the demand for boron. Applying zinc fertilizer can reduce nitrate and nitrite content in fresh vegetables. The production of 1000kg of celery requires 2.0kg of pure nitrogen, 0.93kg of phosphorus pentoxide and 3.9kg of potassium oxide. Before planting, apply 4,000 to 5000 kg of organic fertilizer per 667 square meters, 150 kg of bio-organic compound fertilizer, 40 kg of urea, 25 to 35 kg of superphosphate, 40 kg of potassium sulfate, and 1 to 1.5 kg of zinc sulfate. The plants entered a vigorous growth period and the first topdressing was performed, applying 3 kg of pure nitrogen per 667 square meters, and 5 to 6 kg of potassium oxide. After entering the dressing for the third time in two weeks, pure nitrogen was applied to 2 to 2.5 kg per 667 square meters, and potassium oxide was 4 to 5 kg. Strong growth phase can be sprayed with 0.2% to 0.5% borax.
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