Spring is an important stubble in the production of hot peppers in greenhouses. The hot peppers grown in this period have the characteristics of high yield, good quality, high market price, and good economic benefits, and they are the golden period for growers to grow hot peppers. Experts believe that in order to ensure the yield and economic benefits of pepper, we must grasp all aspects of spring cultivation of pepper in greenhouses and pay attention to scientific management.
Variety selection: early maturity, cold resistance, heat resistance, disease resistance, high yield, medium plant growth potential, suitable for dense planting, not easy to grow too long.
Timely planting: the minimum temperature in the shed is above 5 ℃, the ground temperature is 10 ~ 15 ℃, and it can be planted for one week.
Usually planted in mid-March. Select vegetable plots with high dry terrain, good drainage conditions, deep soil layers, and fertile soil. Select a sunny shed for more than 10 days before planting.
When preparing the land, apply 150 kg of lime per acre, 2500 kg of high-quality organic fertilizer, and 50 kg of compound fertilizer as the bottom fertilizer. The compound fertilizer should be spread over the soil, and then leveled and covered with plastic film.
Planting method and density: sheds with a width of about 5.5 meters, 4 sheds per shed, two rows of stalks, 0.4 to 0.5 meters in hole distance, 1 plant in each hole, 4000 to 4800 plants per acre.
Strictly classify before planting, remove the injured seedlings, weak seedlings, and diseased seedlings. It is best to plant seedlings in the morning on a sunny day. Do not plant the seedlings too deep. Squat seedlings.
Management after planting: Temperature and humidity management To promote slow seedlings after transplanting, we must adhere to high temperature and high humidity environment. Therefore, 5 to 7 days after transplanting, depending on the weather conditions, small winds should be passed, and the lateral winds after the seedlings are gradually increased for rooting. The temperature in the shed is maintained at 20-30 ° C during the day and at around 15 ° C at night. After planting, the temperature is low at night. Remember to turn off the crosswind in time in the evening.
Water and Fertilizer Management: Adhere to the principle of "small water pouring, water not flooding". It should be watered in the morning on a sunny day. Avoid rainy days, or windy weather after watering, to avoid the phenomenon of dead roots when the ground temperature is too low. When flowering and fruit setting, we must pay special attention to controlling water and fertilizer.
Light management: It is necessary to frequently clean the shed surface, remove the debris between the rows and under the film, improve the ventilation and light transmission environment, enhance the light transmittance, and reduce the incidence.
Prevention and control of pests and diseases: The main diseases of pepper are root blight and blight. The blight is treated with 72% glu wettable powder 500 times liquid or 72.2% plexic water 600-700 times liquid; root rot spray or watering 50% Thiocarbam, 800 times solution of sulphur suspension emulsion or 500 times solution of 50% methyltobzine wettable powder.
The main pests of the pepper are aphids. Use 10% imidacloprid wettable powder 1500 times liquid or 3% acetamiprid EC 1500-2000 times liquid.
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