The nitrogen and potassium fertilizers absorbed by peppers throughout their lives, of which 60% of nitrogen and 67% of potassium come from fertilizers, therefore, during the growth of peppers, it is necessary to apply fertilizer many times.

(1) Base fertilizer

Capsicum is a solanaceous crop, sensitive to chlorine, avoiding chlorine crops. Therefore, compound fertilizer can only use potassium sulfate type compound fertilizer.

1. Dosage: generally apply 4000-5000 kg of farmhouse manure, 45% potassium sulfate compound fertilizer (15-15-15) 45-60 kg or 51% pure sulfur-based compound fertilizer (17-17-17) 40-50 kg. If there is no farm manure, it is best to add an appropriate amount of biological fertilizer when applying balanced compound fertilizer

2. Usage: 60% is applied at the bottom of the site, 40% is applied in the trench during planting to ensure that the pepper needs fertilizer for a longer period of time.

(2) Top dressing

The top dressing is generally in the evening, about 15 cm from the roots, and irrigation and watering are carried out immediately after the top dressing. The principle of top dressing is a small number of times.

The first top dressing: after the first flowering period of the pepper, the first top dressing is carried out while sitting on the fruit,

When most of the plants are in fruit, water them a second time and combine them with water to reapply the fertilizer. Generally, every time the fruit is harvested, combined with watering and topdressing, each time topdressing fertilizer of high nitrogen and potassium

Summary: Peppers are used as fresh peppers and dried peppers. Nitrogen fertilizer is used for top dressing of fresh pepper, but not excessive, otherwise the fruit growth rate is low. The key point of making dried peppers is that after the fruit is red, it should be based on nitrogen fertilizer and potassium fertilizer. Potassium is the element that determines the color and quality of dried peppers.

(3) Foliar spraying

1. During the growth of pepper, it is best to combine pest control with pesticide spraying. After fruit setting, spray 0.2% -0.4% of urea and potassium dihydrogen phosphate solution appropriately, once every 7 days at about 50 kg per mu, with less fertilizer , High absorption rate, high conversion rate, can effectively prevent falling flowers and fruits.

2. For the south, acidic soil is prone to calcium deficiency. Therefore, calcium fertilizer can be sprayed appropriately to prevent and control pepper umbilical rot of about 50 kg per mu.

3. At the peak of fresh pepper harvest, peppers need to absorb a large amount of magnesium fertilizer, 0.5-1% magnesium nitrate solution, about 50 kg per mu, spray several times.

4. When pepper is short of boron, use 0.1% borax solution, 50-100 kg per mu, spray every 7 days.