Precautions for growing cucumbers in greenhouses
Planting cucumbers in greenhouses needs to pay attention to the following aspects:
1. Temperature management:
Cucumber is suitable for growing in a warm environment, the most suitable growth temperature is 20-32℃. After sowing, keep the soil temperature not lower than 13℃, and it is appropriate to keep about 25℃ during the day and 15℃ at night during the seedling period.
In winter or spring, the temperature should be adjusted in a timely manner according to weather changes, keeping it at 22-25 ° C during the day and 15-18 ° C at night.
2. Light Management:
Cucumbers need plenty of light, at least 11 hours of light per day is necessary. Lack of light can affect the growth and yield of cucumber.
3. Water Management:
When planting in summer, ensure adequate watering, but avoid excessive watering, so as not to cause root rot and pests and diseases. Cucumber has a high demand for water, and soil moisture should be kept at an appropriate level.
4. Soil Management:
Cucumber is suitable for growing in thick, soft and permeable soil. When preparing the land, the planting method of deep furrow and high cardigan can be used.
5. Fertilization management:
Before flowering and fruiting melons, combined watering with 150kg ammonium sulfide fertilizer per hectare; Topdressing once every 1-2 times of harvest in flowering and melon bearing period, each time applying ammonium bicarbonate per hectare.
6. Pest control:
Regular inspection of plants, timely removal of tendrils and deformed melons, appropriate flower thinning, in order to reduce the occurrence of pests and diseases.
7. Plant adjustment:
When the height of the plant reaches about 25cm, it is necessary to lift the vine in time to prevent the stem from touching the ground and reduce the occurrence of disease. When the growing point of the plant is close to the roof of the shed, when the leafless vine at the bottom of the plant is more than 30 cm from the ground, the vine should be chosen to be sunny and warm in the afternoon.
8. Other points to note:
Select good varieties with low temperature resistance in the early stage, high temperature resistance in the late stage and strong disease resistance.
The seeds are dried 1-3 days before treatment, and then soaked in warm water at 55 ° C to improve the germination rate.
Through the above comprehensive management, the growth quality and yield of cucumbers in greenhouses can be effectively improved.
