The latest greenhouse pepper cultivation techniques tutorial

Pepper, also known as horned pepper, long pepper, vegetable pepper, etc., is a perennial or limited perennial herb of the genus Solanaceae, native to the tropical regions of Central Latin America, and is now widely cultivated in countries all over the world. It is an important vegetable and condiment. Seed oil is edible, fruit also has the effect of deworming and sweating, and has high cultivation value. Let's take a look at the cultivation techniques of pepper in greenhouse.

Temperature condition

The requirement of suitable temperature for growth and development of hot pepper varies with different growth stages. The suitable temperature for germination stage is 25: 30 ℃, seedling stage is 25: 30 ℃ during daytime and 20: 25 ℃ at night, fruiting stage is 25: 30 ℃ during daytime and 16: 20 ℃ at night, and flowers are easy to fall below 15 ℃ or higher than 35 ℃. During the growing period, the suitable ground temperature is 17: 22 ℃, and the high temperature above 35 ℃ plus humidity will cause the plant stem and leaf to grow, fruit development and color conversion period. The temperature is required to be 25: 30 ℃ in daytime and 18: 20 ℃ at night.

Light condition

Pepper is a kind of vegetable which is tolerant to weak light and requires low light intensity. However, under the condition of lack of light intensity for a long time, the leaf color of the plant became lighter, the internodes elongated and the yield decreased. Excessive light is also disadvantageous to the growth and development, such as the leaves are not luxuriant, the fruits are exposed outside the leaves, and sunburn disease is easy to occur. The hot pepper cultivated in greenhouse has shading effect in plastic greenhouse, which is the reason why it is easier to get high yield in greenhouse cultivation than in land cultivation.

Water condition

Chili peppers have strict requirements for moisture and are neither resistant to drought nor waterlogging. The water requirement of the plant itself is not large, but because the root system is underdeveloped and the ability to absorb soil water is weak, so the drought tolerance is poor. Too much or too little air humidity has a great impact on seedling growth, flowering and fruit setting, and the general air relative humidity should be 60-80%. The air humidity in the seedling stage is high, which is easy to cause the disease epidemic. Getting wet at the early flowering stage results in falling flowers. When the air is too dry in full bloom, it will also cause falling flowers and fruits.

Soil condition

Pepper is not strict on soil, and can be planted on both neutral and slightly acidic soils with a pH of 6.2 to 8.5. However, because the root system of pepper is weak, the soil is shallow, the growth period is long, and there are many results, it is best to choose loam or sandy loam with high dry terrain, deep soil layer, good drainage and medium fertility.

Nutritional condition

Pepper has higher requirements for nitrogen, phosphorus and potassium fertilizer. Appropriate phosphorus and potassium fertilizer is needed in the seedling stage, and the flower bud differentiation stage is significantly affected by the level of fertilization. Proper use of phosphorus and potassium fertilizer can promote flowering, not partial application of nitrogen fertilizer. Especially in the early flowering stage, if too much nitrogen fertilizer will cause serious flower and fruit drop.

The growth environmental conditions needed for the cultivation of pepper in greenhouse are introduced here. Let's take a look at the seedling technology of pepper in greenhouse.