How to grow peppers in greenhouses in summer

1, temperature management. The suitable temperature for pepper growth period is 25~30℃ in the daytime and 15~20℃ at night. In the early stage of pepper growth in greenhouse, when the average temperature outside the greenhouse is lower than 18℃ and the night temperature is lower than 12℃, heat preservation measures such as sealing and covering should be taken in time; In the flowering and fruiting stage, the temperature in the greenhouse is high, so the temperature in the greenhouse can be controlled by increasing ventilation.

2. Water and fertilizer management. After planting, the soil moisture is controlled at about 80%. From seedling stage to flowering stage, drip irrigation 1 Betanwang water-soluble fertilizer 1000 times every three days, each time for 3 hours; During the flowering and fruiting period, drip irrigation 1 Betanwang water-soluble fertilizer 1000 times every day for 3-4 hours on sunny days; On cloudy days, drip irrigation with water-soluble fertilizer of Danwang 1000 times/Kloc-0 times for 3 hours, and spray 0.2% calcium-magnesium foliar fertilizer and 0.3% potassium dihydrogen phosphate solution on the leaves.

3. Plant regulation. When the plant height of pepper reaches 25~30cm, all the leaves below branches and lateral buds on leaf axils should be removed to facilitate ventilation and light transmission among plants. Parentheses are inserted at the same time when pruning. Use a bamboo pole with a length of 1.3~ 1.5m as a support, sharpen one end and insert it into the soil near the border, with a general spacing of 3~5m (which can be adjusted according to the actual situation), and pull 1~2 parallel lines between the supports at a distance of 30~40cm from the border to fix the plants.

4. Management of sunshade net. Pay attention to the weather changes every day. When the daytime temperature forecast is above 30℃, pull the sunshade net at 7: 00 in the morning to prevent high temperature hazards, and pull it at 4: 00 in the afternoon to increase the light; Open the sunshade net on cloudy days to increase the light for the healthy growth of plants.