Detailed Explanation of Key Management Techniques for Sweet Peppers During the Color-Changing Stage

Sweet pepper is a type of chili pepper, also known as bell pepper, big pepper, or lantern pepper. Its fruit is relatively large, with a mild or even nonexistent spiciness, so it is generally eaten as a vegetable rather than used as a seasoning. The color-changing stage is very important when growing sweet peppers, and the fruit shape is related to the sweet pepper variety. So how should sweet peppers be managed during the color-changing stage? Let's take a look.

1. Temperature

First, pay attention to temperature. Sweet peppers have relatively strict temperature requirements during the color-changing stage. The suitable daytime temperature is 28-30 degrees. If the temperature is too high, it will make pigment formation difficult, leading to uneven color change and poor brightness. During cultivation, the temperature inside the greenhouse should be lowered by strengthening ventilation, installing shade nets, and spraying cooling agents, so that the color change proceeds normally.

2. Light

During the color-changing stage of sweet peppers, light conditions are extremely important. Insufficient light will lead to uneven color change, but the fruit should also not be exposed to direct strong light, because if the light is too strong and directly shines on the fruit, it can easily cause sunscald fruit. When light is too strong in summer, sweet peppers only need a certain amount of scattered light to meet their color-changing needs. Therefore, during the color-changing stage, the leaves near the fruit should not be removed; an appropriate amount of leaves should be retained to avoid sunscald fruit. In cases of insufficient light conditions, the greenhouse film should be wiped frequently to increase its light transmittance, and old leaves and yellow leaves should be removed in time to increase light penetration between plants, so that the color change is uniform.

3. Fertilizer and Water

Many vegetable growers believe during cultivation that watering will affect the color change of sweet peppers, so they reduce the number of waterings and the amount of water during the color-changing stage of sweet peppers. This causes the plants, due to insufficient water, to be unable to supply nutrients in time, forcing the plants to speed up color change, resulting in dull fruit color, thin fruit skin, and low yield. During the color-changing stage of sweet peppers, watering should be done reasonably according to plant growth and soil moisture conditions. Watering can increase field humidity and lower temperature. When watering, potassium fertilizer can be dissolved in water and applied together with the irrigation, which can both increase yield and promote normal color change of sweet peppers.

4. Spraying Color-Enhancing Agent

During cultivation, many growers, in order to make the fruit color brighter and the quality better, generally spray a chemical agent during the color-changing stage to speed up the color change of sweet peppers. This agent is a color-enhancing agent. When spraying, be sure to pay attention to the concentration; it must not be too high, otherwise the excessively high concentration of ethephon in it will cause plant aging and premature senescence.

The above is an introduction to management techniques for sweet peppers during the color-changing stage. We hope it can help you. To learn more related knowledge, please follow us.